A BUS TRAVELING AT 60KMHR-1 ACCELERATE UNIFORMLY AT 5MS-2 CALCULATE IT VELOCITY AFTER 2MINUTES
Answers
The velocity after two minutes is v = 616.67 m/s
Using the equation final velocity = beginning velocity + acceleration * time, the final velocity of this bus after two minutes is determined. Symbolically, v is represented as follows: vi = 60 km/h, a = 5 m/s2, and t = 2 minutes. First, we must translate 60 km/h into m/s. 50/3 m/s is equal to 60 km/h or 60,000 m/36 seconds.
When determining the final velocity, v
v = vi + a * t
120 seconds at v = 50/3 m/s + 5 m/s2
v = 50/3 m/s + 600 m/s
v = 16.67 m/s + 600 m/s
v = 616.67 m/s
After two minutes, the bus's speed is 616.67 m/s. For a bus, it is a pretty implausible velocity. The speed of this object is 2,220 km/h, exceeding the speeds of both air and jet aircraft. Your acceleration time should have been capped at 20 seconds or less.
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Related Questions
How can we teach our kitty to behave properly
Answers
Answer:
I have no idea.
Explanation:
I just wanted to tell you I absolutely read this wrong.
A tiny insect is trapped 1.0 mm from the center of a spherical dewdrop 4.0 mm in diameter.
As you look straight into the drop, what is the insect's apparent distance from the drop's surface?
Express your answer using two significant figures. Answer is in mm.
Answers
On the same side as the object, the distance is negative, so the apparent distance of the insect from the drop's surface is -3.0 mm. This means the insect appears to be 3.0 mm inside the surface of the drop.
Calculation-The apparent distance from the drop's surface can be calculated using the formula for the radius of curvature of a spherical mirror, which is given by:
1/R = (n-1)(1/R1 + 1/R2)
Where R is the radius of curvature of the spherical mirror, n is the refractive index of the medium between the object and the mirror, R1 is the distance of the object from the mirror, and R2 is the distance of the image from the mirror.
In this case, the dewdrop is the spherical mirror and the insect is the object. Since the dewdrop is filled with water, which has a refractive index of about 1.33, the insect is in the air which has a refractive index of 1.R1 = 1.0 mm (distance of the object from the center of the spherical mirror)
R2 = ? (distance of the image from the center of the spherical mirror)
1/R = (1 - 1)(1/1.0 mm + 1/R2)
R2 = -1/ (1/1.0 mm - 1/R)
We know that R = (4.0/2) mm = 2.0 mm, so we can substitute that into the equation and solve for R2:
R2 = -1/ (1/1.0 mm - 1/2.0 mm)
R2 = -3.0 mm
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what is the displacement between the interval 0-4s
Answers
Answer:
120 meters
Explanation:
To find the displacement in the velocity-time graph, we can do that by finding the area under the graph. Since from t = 0 to 4, the points form a right triangle, we can find the area by using triangle area formula:
\( \displaystyle{A = \dfrac{1}{2} \times b \times h}\)
We know that base is 4 and height is 60. Therefore:
\( \displaystyle{A = \dfrac{1}{2} \times 4\times 60} \\ \\ \displaystyle{A = 2\times 60} \\ \\ \displaystyle{A = 120}\)
Since area is 120 under the graph then that means the displacement is 120 meters.
A massless, rigid board is placed across two bathroom scales that are separated by a distance of 1.89 m. A person lies on the board. The scale under his head reads 470 N, and the scale under his feet reads 334 N. (a) Find the weight of the person. (b) Locate the center of gravity of the person relative to the scale beneath his head.
Answers
Answer:
A. 119kg
B.0.53m from head
Explanation:
A. Weight = 730+340.
=1170N
F= Wg
W = 1170/9.8
= 119kg
If x is distance from head to CG then 1.92–x is the other distance.
Moments must equal
470x = 330(1.89–x)
470x = 623.7 – 330x
1170x = 623.7
x = 0.53m from head
What are 3 facts about electromagnets?.
Answers
Magnetic objects are either drawn to or pushed away by magnetism. When two magnets with the same poles are positioned close to one another, they push apart and repel. When two dissimilar poles are positioned close to one another, they pull and attract to one another.
What three qualities do electromagnets possess?A soft iron core makes up an electromagnet. You may alter the magnetic field's strength. Simply cutting off the electricity will demagnetize an electromagnet. Reversing the polarity is possible.
A unique class of magnets called electromagnets has the following characteristics: By switching the direction of the current flow, the polarity of the magnets may be changed. They function as magnets when an electric current is passing through them; they are transient magnets that may be turned on and off.
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A car is moving at 30.0 m/s, east in a straight line approaching the red traffic light as shown. The
time it takes for the car to stop is .6 seconds.
What is the acceleration of the car?
Answers
Answer:
–5
Explanation:
u = 30m/s , v = 0(comes to a stop) , t = 6s, a = ?
a = v – u/t
a = 0 – 30/6
a = –30/6
a = –5
A car is moving at 30.0 m/s, east in a straight line approaching the red traffic light as shown. The time it takes for the car to stop is 0.6 seconds. The acceleration of the car is -5 m/s.
What is speed?Speed is defined as the pace at which an object's location changes in any direction. The distance traveled in relation to the time it took to travel that distance is how speed is defined.
Given
u = 30m/s ,
v = 0(comes to a stop) ,
t = 6s
To calculate acceleration we use formula
a = v – u/t
a = 0 – 30/6
a = –30/6
a = –5 m/s
Thus, a car is moving at 30.0 m/s, east in a straight line approaching the red traffic light as shown. The time it takes for the car to stop is 0.6 seconds. The acceleration of the car is -5 m/s.
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Three-fourths of the elements on the
periodic table are:
a. Metals
b. Nonmetals
c. metalloids
Answers
Answer:
b
Explanation:
because the metalloids are the thing in the middle
what can be used to describe electrical energy?
1.energy transferred through the movement of charges
2.kinetic energy of charged bodies in an electric field
3.potential energy stored in a battery
4.energy of light emitted by an electric bulb
energy transmitted by electric current
Answers
Electrical energy can be described as the energy transferred through the movement of charges, typically in the form of an electric current
define Electrical energy ?
Electrical energy is a form of energy that results from the movement of electric charges, typically in the form of an electric current. It is the energy that is transferred or converted from electric potential energy, which is the energy stored in a system due to the separation of charges. Electrical energy can be harnessed and used for various purposes, such as lighting, heating, powering electronic devices, and driving motors. It is an essential form of energy in modern society and plays a crucial role in many aspects of daily life.
The correct answer is 1. Electrical energy can be described as the energy transferred through the movement of charges, typically in the form of an electric current. Options 2, 3, and 4 refer to other forms of energy related to electricity but do not fully describe electrical energy itself.
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Identity ten devices that use cells or batteries. What types of cells or batteries are used in each device? Are the cells or batteries used the best choice?
Answers
Ten devices that use batteries are: smartphones, laptops, flashlights, digital cameras, portable speakers, electric toothbrushes , remote controls, electric shavers, handheld game consoles, and electronic toys
What are the batteries?
Here are ten devices that use cells or batteries:
Smartphones - most smartphones use rechargeable lithium-ion batteries.Laptops - laptops use rechargeable lithium-ion batteriesDigital cameras - digital cameras use rechargeable lithium-ion batteries or disposable alkaline batteriesElectric toothbrushes - electric toothbrushes typically use rechargeable nickel-metal hydride (NiMH) batteriesFlashlights - flashlights often use disposable alkaline batteries, although some models use rechargeable lithium-ion batteriesRemote controls - remote controls typically use disposable alkaline batteriesPortable speakers - portable speakers usually use rechargeable lithium-ion batteriesCalculators - calculators often use button cell batteries, such as the CR2032 lithium batteryWatches - watches use a variety of batteries, including button cell batteries like the SR626SW silver oxide battery or the CR2032 lithium batteryToys - many toys use disposable alkaline batteriesWhether or not the cells or batteries used in these devices are the best choice depends on various factors such as the device's power requirements, energy efficiency, cost, and environmental impact.
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To be launched, a glider is uniformly accelerated from rest by a cable pulled by a motor that exerts a horizontal force on the glider throughout the launch. The glider reaches its launch speed of 51.0 m/s after accelerating for 17.0 s. Assume that the glider moves horizontally until it leaves the ground. Calculate the total distance travelled by the glider before it leaves the ground.
Answers
The total distance travelled by the glider before it leaves the ground is 867 meters.
Velocity is the change in displacement divided by time taken. Here the displacement is unknown. The glider reaches its launch speed of 51.0 m/s after accelerating for 17.0 s. The velocity of the glider is 51.0 m/s and time taken is 17.0 s. The equation to calculate the total distance travelled by the glider before it leaves the ground is given below.
velocity = displacement/time
displacement = velocity*time
displacement = 17.0*51.0 = 867 meters
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* Question Completion Status: Moving to another question will save this response. Question 29 Which one of the following statements is not true? (choose all apply) O UV radiation is a type of ionizing
Answers
One statement that is not true is that UV radiation is a type of electromagnetic radiation. It is also a type of ionizing radiation. UV radiation is actually a form of non-ionizing radiation.
UV radiation, or ultraviolet radiation, is a type of electromagnetic radiation that falls between visible light and X-rays on the electromagnetic spectrum. It is often categorized into three types: UVA, UVB, and UVC. Unlike ionizing radiation, such as X-rays and gamma rays, which have enough energy to remove tightly bound electrons from atoms or molecules, UV radiation lacks the necessary energy to ionize atoms or molecules. Instead, it primarily interacts with the outermost electrons of atoms or molecules, leading to chemical reactions and causing biological effects.
UV radiation is commonly associated with sunlight and has various effects on living organisms and materials. It can cause sunburn, premature aging of the skin, and an increased risk of skin cancer. Exposure to excessive UV radiation can also damage the eyes and impair the immune system. It is important to protect oneself from excessive UV exposure by wearing sunscreen, protective clothing, and sunglasses.
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What phrase describes radioactivite decay
Answers
the splitting of a large nucleus into smaller nuclei is the phrase that describes radioactive decay
The process through which an unstable atomic nucleus loses energy through radiation is known as radioactive decay, also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration. A substance with unstable nuclei is regarded as radioactive decay
The complete question is
Which phrase describes radioactive decay? (1 point)
the triggering of one reaction by the products of another
the joining of small nuclei into a laroid nucleus
o the splitting of a large nucleus into smaller nuclei
o the spontaneous emission of radiation
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WILL MARK BRAINLIEST!!!!
Light reflects off many objects. Which model of light behavior best helps explain this effect?
Particle model
Wave model
Magnetic model
Electric model
Answers
Answer:
Wave model
Explanation:
Answer:
The answer would be a wave model
Explanation:
If you dip hand in cold water after having dipped in warm water wii you feel the water colder than actually is?
Answers
Your hand feels colder when it transitions from warm to "colder" (room temperature) water.
What happens when you put your hand from warm water to cold water?Your hand feels colder when you move it from the warm water to the "colder" (room temperature) water. Skin surface temperature will decrease in a constant ambient environment as a result of sympathetic nerve activity increasing and blood flow decreasing as a result of cutaneous receptors triggered by ice-water immersion of one hand in the palm skin of the non-immersed opposite hand.
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Write an expression for the energy stored E, in a stretched wire of length l , cross sectional area A, extension e , and Young's modulus Y of the material of the wire.
Answers
The expression for the energy stored (E) in a stretched wire of length (l), cross-sectional area (A), extension (e), and Young's modulus (Y) is (Y * A * e^2) / (2 * l).
The expression for the energy stored (E) in a stretched wire can be derived using Hooke's Law and the definition of strain energy.
Hooke's Law states that the stress (σ) in a wire is directly proportional to the strain (ε), where the constant of proportionality is the Young's modulus (Y) of the material:
σ = Y * ε
The strain (ε) is defined as the ratio of the extension (e) to the original length (l) of the wire:
ε = e / l
By substituting the expression for strain into Hooke's Law, we get:
σ = Y * (e / l)
The stress (σ) is given by the force (F) applied to the wire divided by its cross-sectional area (A):
σ = F / A
Equating the expressions for stress, we have:
F / A = Y * (e / l)
Solving for the force (F), we get:
F = (Y * A * e) / l
The energy stored (E) in the wire can be calculated by integrating the force (F) with respect to the extension (e):
E = ∫ F * de
Substituting the expression for force, we have:
E = ∫ [(Y * A * e) / l] * de
Simplifying the integral, we get:
E = (Y * A * e^2) / (2 * l)
Therefore, the expression for the energy stored (E) in a stretched wire of length (l), cross-sectional area (A), extension (e), and Young's modulus (Y) is (Y * A * e^2) / (2 * l).
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(6.2 x 1018m) (4.7 x 10-1°m)
Answers
Answer: (6.2 x 10^18m) (4.7 x 10^-10m)
multiply the decimal numbers first: 6.2 x 4.7 = 29.14
multiply the base ten numbers by adding the exponents:
10^18m x 10^-10m = 10^8m
now you have:
29.14 x 10^8m
that's it -- unless you need to write the final answer in scientific notation. If so, you have to adjust the exponent for the base 10 to get:
2.914 x 10^(8m+1)
;)
Explanation:
You would expect vertical airflow in a cyclone to result in: convergence aloft. no cloud development. divergence aloft. divergence at the surface.
Answers
The vertical airflow in a cyclone is a crucial component of its atmospheric circulation, driving convergence aloft, cloud development, and precipitation.
In a cyclone, the atmospheric circulation involves a counterclockwise flow of air, creating vertical airflow that spirals inward towards the center of the low-pressure system. This vertical airflow results in convergence aloft, where air from different directions is forced to rise and converge at the center of the cyclone. As the air rises, it cools and condenses, leading to cloud development and precipitation.The vertical airflow in a cyclone is driven by the Coriolis effect, which causes air to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This deflection creates the spiral pattern of the cyclone, with the strongest winds and heaviest precipitation located near the center of the system.
Overall, Understanding this process is essential for weather forecasting and predicting the impacts of cyclones on affected regions.
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Complete question:
You would expect vertical airflow in a cyclone to result in:
a. convergence aloft.
b. no cloud development.
c. divergence aloft.
d. divergence at the surface
In terms of net charge, how does an electrically polarized object differ from an electrically charged object?.
Answers
Answer:
An electrically polarized object can have zero net charge, while a charged object cannot have zero net charge.
I hope this helps :D
A projectile is fired from ground level over level ground with an initial velocity that has a vertical component of 20m/s and a horizontal component of 30m/s. Using g = 10m/s2, the distance from launching to landing points is:.
Answers
The range is 120 meters from the launch point to the landing position.
The angle of projection must first be determined using the formula below before we can determine the projectile's range.
Equation:∅= tan1(Vy/Vx)... Equation 1, where is the projection angle.
Given:
Vy is 20 m/s, while Vx is 30 m/s.
Add these values to equation 1 as replacements.
∅ = tan⁻¹(20/30)
∅ = tan⁻¹(0.667) (0.667)
∅ = 33.7°
Finally, we apply the following formula to determine the projectile's range.Equation 2: R = V2sin2g Where:
R = Range of the projectile.
V = Resultant velocity
∅ = Angle of projection
g = acceleration due to gravity.
Given:V = √[(20²)+(30²)] = √(400+900) = √1300 m/s
∅ = 33.7°
g =10 m/s²
Substitute these values into equation 2R = (√1300)²sin(2×33.7)/9.8
R = 1300(sin67.4)/10
R = 1200.17/10
R = 120.017 m.
Therefore, the range—the distance between the launch and landing points—is 120 m.
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In parabolic solar cooker a cooking vessel is not kept at the radius of the curved surface
Answers
In parabolic solar cooker, the container of cooking is placed at the focal point of mirror of parabolic shape so that all rays that are falling on solar cooker can converge to one point and produce large amount of heat energy.
A parabolic solar cooker is a cooking device that works on the energy generated from solar panel.
Though solar cookers are slow to cook, they are green sources of energy utilizer as well as renewable source of energy.
Parabolic solar cookers make the use of a reflector which is parabolic in shape to concentrate sunlight into a smaller area in order to generate heat for cooking. They are able to reach high temperatures, which allows them to be used for grilling and frying. These temperatures are significantly higher than what can be reached by a solar box cookers or solar panel cookers .
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Two forces of magnitude 10n and 20n acting at an angle of 30 degree. what will be the x component of their resultant force?
Answers
The resultant of the forces is 29 N. Option D
What is the resultant force?The resultant force is the force that acts in a given direction. Now we have two forces as enumerated in the question.
Thus;
Resultant = √(10)^2 + (20)^2 - [2 * 10 * 20 * cos (60 - 30))
Resultant = 29 N
Thus, the resultant of the forces is 29 N.
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Missing parts;
Two forces of magnitude 10N and 20N act on a body in directions making angles 30° and 60° respectively with x-axis what is the resultant force
A.17N
B. 19N
C. 23N
D. 29N
E. 37N
give the instantaneous velocity (including unit vector) of the object at t=1.5s
Answers
Since an object's instantaneous velocity equals the derivative of its displacement at a certain point, we can also state that the instantaneous velocity at time t = 1 is around 2 meters per second.
The derivative of x with respect to t, or the upper limit of the average velocity as the elapsed time approaches 0, is the instantaneous velocity of an object:
v (t) equals d d t x (t). v (t) equals d d t x (t).
Instantaneous velocity is a vector having a dimension of length per time, similar to average velocity. The speed of an object at a specific time is its instantaneous speed. The instantaneous velocity is obtained by adding the direction to the speed.
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A 0.5 kg ball has a velocity of 20 m/s.
a. What is the kinetic energy of the ball?
B. How much work would be required to stop the ball
Answers
The kinetic energy of the ball is 100j
100j of work would be required to stop the ball.
What is Kinetic energy?Kinetic energy is a form of energy that an particle has by reason of it's motion.if we accelarate a object we must apply a force.
Here the mass (m) is 0.5 kg
It's velocity (v) is 20 m/s
The kinectic energy is
KE = 1/2 mv^2 = 1/2(0.5)20.20= 100 J
Again the workdone to stop it is calculated by work energy theorem
Change in KE = workdone
Or 100 J - 0 J or 100 J needed to stop the ball.
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You are sitting in a chair on an elavator. The elavator accelerates downward, you and the chair land on the cround with the chair landing first and then you on the chair.
Explain the Net Forces at 3 points for each object
The points are: Before the Elevator Accelerates Downward, In Freefall, At Impact
Analyze whether the Normal Force would need to increase, and where the direction of the net force is for each object.
Answers
Answer:
fdsbgdfshtrsnbfgsbnhgr
Explanation:
cdfrgresgtrshtrwhtrwhtwjhdgngdabfeahydrtgnb
what is the weight of a 40 kg child on the moon if the moon's gravitational pull is 1.62m/s2
A. 4.1 N
B 24.69
C 64.8 N
D 392N
Answers
Answer:
64.8 N
Explanation:
weight = mass × gravity
= 40×1.62
= 64.8N
sound travels at 330 m/s. you hear the sound of a bat hitting a homerun 0.5 seconds after you see it how far away from the batter are you
Answers
Answer:
165 m
Explanation:
Distance = speed × time
d = (330 m/s) (0.5 s)
d = 165 m
______________________________ is defined as the time from onset of systole to the time peak systole occurs.
A. spatial pulse length
B. acceleration time
C. velocity time interval
D. resistive index
Answers
Spatial pulse length is defined as the time from onset of systole to the time peak systole occurs.
This time period is an important factor in the diagnosis and treatment of cardiovascular diseases. It is typically measured using an echocardiogram or an electrocardiogram. During this time period, the heart contracts and relaxes, producing a wave of blood that is sent throughout the body.
The time spent in systole is used to measure the efficiency of the heart’s pumping ability. The spatial pulse length helps to determine the amount of blood that is being pumped, the amount of pressure that is being generated and the amount of energy that is being expended in order to push the blood through the body.
The length of the spatial pulse can also be used to assess the health of the heart and how well it is functioning. Knowing this information can be beneficial for medical professionals in determining the best course of treatment for a patient.
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Which of the following is an example of an electromagnetic wave ?
Answers
Answer:
Its a wave
Explanation:
THis is one
Answer: a light wave
Explanation: a pex
When describing motion, what is a frame of reference? (1 point)
O Any numerical measurement of the motion.
O The point of origin of the motion
OA system of reference points used to determine position and velocities of objects.
O An x-y grid with yourself at the origin.
Answers
C. When describing motion, a frame of reference is a system of reference points used to determine position and velocities of objects.
What is frame of reference?A frame of reference is an arbitrary set of axes with reference to which the position or motion of something is described or physical laws are formulated.
What is the importance of frame of reference?Frame of reference serves a valuable purpose, because it enables us to make more accurate measurement of our position, displacement, velocity and the total distance traveled.
Also, a frame of reference consists of an abstract coordinate system and the set of physical reference points that uniquely fix the coordinate system and take measurements within that frame.
In other words, it is a system or base, on which motion of an object is determined.
Thus, when describing motion, a frame of reference is a system of reference points used to determine position and velocities of objects.
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The SI unit of voltage (aka "electric potential difference") is equivalent to:
Newton ⋅ Coulomb
Newton / Coulomb
Joule ⋅ Coulomb
Joule / Coulomb
Watt ⋅ Coulomb
Watt / Coulomb
Answers
The SI unit of voltage (aka "electric potential difference") is equivalent to:
Joule / Coulomb
This unit is also known as a Volt (V).
The SI unit of voltage, also known as electric potential difference, is equivalent to the Joule per Coulomb (J/C). Therefore, the correct option is D) Joule / Coulomb.
Voltage is defined as the amount of electric potential energy per unit charge. The unit of energy in the International System of Units (SI) is the Joule (J), and the unit of charge is the Coulomb (C). Therefore, the unit of voltage is the Joule per Coulomb (J/C), which represents the amount of energy transferred per unit charge when an electric potential difference is present.
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