30. Determine the momentum of a system that consists of two objects. One object, mi, has a mass of 6 kg and a velocity of 13 m/s in the direction of the positive x-axis and a second object, mz, has a mass of 14 kg and a velocity 7 m/s in the direction of the negative x-axis.

Answer:

there less and less gravity while your going farther and farther

Answer:

25.9

Explanation:

(15.4 m) + (10.5 m) d=25.9

The drag (force of air resistance) on the system (man plus parachute) when the skydiver reaches terminal speed is equal to the gravitational force acting on him, which is 80 kg × 9.8 m/s² = 784 N.

To calculate the drag force at terminal speed, we must first understand that at terminal speed, the net force acting on the system is zero. This is because the gravitational force (weight) acting downward on the skydiver is balanced by the upward air resistance (drag force).

The weight of the skydiver can be calculated by multiplying his mass (80 kg) by the acceleration due to gravity (9.8 m/s²), resulting in a gravitational force of 784 N. Since the net force is zero, the drag force must also be 784 N, meaning the force of air resistance on the system at terminal speed is 784 N.

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1000 calories is not sufficient; it is 172 calories short. The basal energy rate for the patient is 1702 calories, meaning that 1000 calories is 172 calories short of what he needs to maintain his body temperature and basic life processes.

Calories are a unit of energy that are found in food and beverages. They provide the body with energy to perform daily activities and are essential to our health. Calories are found in carbohydrates, proteins, fats, and alcohol. Generally, foods and beverages that are high in calories are high in fat, sugar, and/or alcohol. Eating too many calories can lead to weight gain and increased risk for chronic diseases such as diabetes, heart disease, and cancer. On the other hand, not getting enough calories can lead to malnutrition, fatigue, and other health problems. To maintain a healthy weight, it is important to eat a balanced diet that is low in calories and high in nutrient-rich foods such as fruits, vegetables, whole grains, and lean proteins.

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The time submarine passes a marker that is 125 km from shore is 3.87 hr.

Speed is the directional velocity of an object in motion as a demonstration of its price of alternate in function as discovered from a particular frame of reference and as measured by way of a specific preferred time.

velocity is the top indicator of the placement in addition to the rapidity of the item. it may be described as the distance protected by way of an item in unit time. velocity may be defined as the displacement of the item in unit time.

velocity is the quickness of movement or movement. A synonym is a celerity; a less difficult phrase is pace. In physics, pace especially refers to the dimension of the price and route of an alternate in the function of an item.

calculation:-

velocity = displacement/time

             = 290 / 9

              = 32.22 km/hr

new distance = 125 km

velocity is constant = 32.22 km/hr

time = displacement/velocity

        = 125/32.22

         = 3.87 hr

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For  the​ body's position at time t  is mathematically given as

s(t)=4.9t^2+5t+16

Generally, the equation for the velocity is mathematically given as

v=ds/dt

v=9.8t+5 as velocity

s=4.9t^2+5t+c

s(0)=16

16=c

s(t)=4.9t^2+5t+16

In conclusion the​ body's position at time t

s(t)=4.9t^2+5t+16

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The body position at the given time t is s = 4.9t² + 5t + 16 if the velocity v= ds/dt and the initial position of a body moving along a coordinate line.

A numerical representation of the distance between two items or locations is called distance. A physical length or an approximation based on other considerations in physics or common usage can be referred to as distance.

We have:

\(\rm v = \frac{ds}{dt}\)

\(\rm v = 9.8t+5\)  is the velocity

\(\rm s = 4.9t^2+5t+c\) is the speed

At t = 0 s(0) = 16

16 = c

\(\rm s = 4.9t^2+5t+16\)

Thus, the body position at the given time t is s = 4.9t² + 5t + 16 if the velocity v= ds/dt and the initial position of a body moving along a coordinate line.

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Answer:

d

Explanation:

on edge

The sentence that shows the correct use of a transition word is I stayed up late for several nights. Eventually, I was too tired to concentrate. The correct option is D.

Transitional words include the words "and," "but," "so," and "because." They demonstrate to your reader the connections between words, and sentences.

Utilize these transitions wisely by making sure the word or phrase you choose adheres to the logic of the connection or relationship you are emphasizing.

Before utilizing a certain transitional word in your paper, make sure you fully understand its meaning and usage and that it is the correct match for the logic of your thesis. All of these words and phrases have various meanings, nuances, and connotations.

Therefore, the correct option is D, I stayed up late for several nights. Eventually, I was too tired to concentrate

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Answer:

C- 96 m

Explanation:

d= st

d= 8 m/s x 12 seconds

d= 96 metres

The intensity of the wave is 1.92 x \(10^{-5\) W/\(m^2\).

The intensity (I) of an electromagnetic wave is defined as the average power per unit area that it carries.

The relationship between the intensity and the RMS electric field (E) of a sinusoidal electromagnetic wave is given by:

I = (1/2) x \(\epsilon_0\) x c x \(E^2\)

where \(\epsilon_0\) is the vacuum permittivity and c is the speed of light in vacuum.

Substituting the given values, we have:

I = \((1/2) \times (8.85 \times 10^{-12}) \times (3.00 \times 10^8) \times (800 \times 10^{-9})^2\)

I = 9.44 × \(10^{-5} W/m^2\)

Therefore, the intensity of the wave is 9.44 × \(10^{-5\) W/\(m^2\)

It is important to note that the intensity of an electromagnetic wave depends on the square of the amplitude of its electric field.

Therefore, doubling the RMS electric field of the wave will result in a four-fold increase in its intensity.

Conversely, reducing the electric field amplitude by a factor of 2 will result in a reduction of the wave's intensity by a factor of 4.

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The intensity (I) of an electromagnetic wave is defined as the average power (P) per unit area (A) of the wave, and can be calculated using the following formula:

I = P/A

We can also express the power of an electromagnetic wave in terms of the electric field (E) and magnetic field (B) amplitudes, using the following relationship:

P = (1/2)ε0cE^2

where ε0 is the permittivity of free space, c is the speed of light, and E is the root-mean-square (rms) electric field amplitude.

Since we are given the rms electric field amplitude, we can use the above equation to calculate the power of the wave:

P = (1/2)ε0cE^2 = (1/2)(8.85 × 10^-12 c^2/n ∙ m^2)(3.00 × 10^8 m/s)(800 × 10^-9 V/m)^2 = 0.095 W/m^2

Next, we can calculate the intensity by dividing the power by the area through which the wave is passing. Since the area of a sphere of radius r is 4πr^2, and the wave is assumed to be spreading out uniformly in all directions, we can take the area to be that of a sphere with radius r = 1 meter:

A = 4πr^2 = 4π(1 m)^2 = 12.57 m^2

Therefore, the intensity of the wave is:

I = P/A = 0.095 W/m^2 ÷ 12.57 m^2 = 7.57 × 10^-3 W/m^2

So the intensity of the wave is 7.57 × 10^-3 W/m^2.

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Answer:

The volume of the object is 3.5cm³

Answer:

The resistance that would produce a current of 400 amperes from a socket putting out 2,000 volts is 5 ohms, calculated using the formula R = V/I, where V = 2,000 volts and I = 400 amperes.

Explanation:

So, a resistance of 5 ohm would result in a current of 400 amps from a 2,000 volt plug.

The opposition that a substance provides to the flow of electric current is referred to as resistance. The capital letter R represents it. The ohm is the standard unit of resistance, which is often written as a word and occasionally represented by the capital Greek letter omega. Resistance is a measure of an electrical circuit's resistance to current flow. Resistance is measured in ohms, which is represented by the Greek letter omega (ohm). A conductor's resistance is defined as the ratio of potential difference across its end to current flowing through it. It is measured in ohms (omega).

Here,

The resistance can be calculated using Ohm's law: R = V / I, where V is voltage, I is current, and R is resistance.

R = 2000V / 400A = 5Ω

So, a resistance of 5Ω would produce a current of 400 amperes from a socket putting out 2,000 volts.

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Answer:

its should be 2.0 and 4.5 on it

Answer:

10

Explanation:

10 is the answer because you divide 50  and 5 and your answer is 10.

Hope this helps:)

Pls mark brainlist

Answer:

a = -10m/s²

Explanation:

Givens:

Vf = 0m/s

Vi = 50m/s

t = 5s

Use the following kinematic equation:

Vf = Vi+at

Rearrange

a = (Vf-Vi)/t

a = -10m/s²

The correct answer of Gravitational Field Strength is shared in graph. (image attached)

What is Gravitational Field Strength?

The influence that a large body has on the area surrounding it, exerting a force on another large body, is described by the gravitational field. As a result, a gravitational field, which is measured in newtons per kilogramme, is

weight/mass = gravitational field strength

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Answer:

hhjjj

Explanation:

j

Digital signals more reliable than analog signals because of the many following reasons:

Analog Signal is a Continuous type signal which has one time varying quantities such as Voltage, Pressure, etc. As in the analog audio signal the instantaneous voltage continuously varies with the sound wave's pressure.

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An electric circuit containing a dry cell and a torch bulb is completed by including a metal screw driver having a wooden handle. The bulb does not glow as wood does not pass electricity through it.

An electric circuit conducting current is a closed path of wires and electrical components which allows current through them on the application of potential difference between two points in the path.

Materials are usually of two types, they are conductors and insulators. Insulators do not allow current to pass through them due to the arrangement of atoms in them.

Some of the examples of insulators are wood, plastic, stone, etc.

As wood is included in the circuit, the current is not continuous and breaks its flow at the point where wood id connected.

Thus, the bulb does not glow.

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Answer:

The first law: the law of Inertia.

Explanation:

Newton’s first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

Answer:

1st, 2nd, & 3rd law

Explanation:

there is no 5th/4th law ppl

I did this question and it says SELECT 3 OPTIONS not 1 (This answer isn’t meant to be rude but just stating what the question says.)

The recommended ratio for antifreeze to water in a car radiator is 50:50.

This means that for every kilogram of water in your car radiator, you should add one kilogram of antifreeze.

In terms of grams, this would be 500 grams of water and 500 grams of antifreeze per kilogram of water in the radiator. It's important to maintain this ratio to ensure the proper functioning of your car's cooling system and to prevent damage from freezing or overheating.

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a) The force diagram of the block and all the forces are in the image attached.

(b) The weight of the block and its parallel component is  98.1 N and 33.55 N respectively.

(c) The applied force on the block is 52.75 N

(a) The force diagram of the block include, the parallel and pedicular component, as well as friction force.

(b) The weight of the block and its parallel component is calculated as;

Fg = mg

where;

Fg = 10 kg x 9.81 m/s²

Fg = 98.1 N

Fgₓ = mgsinθ

Fgₓ = 98.1 N x sin(20)

Fgₓ = 33.55 N

(c) The applied force on the block is calculated as follows;

F - Fgₓ - μFgcosθ = ma

where;

μ = a/g

μ = 1 / 9.81 = 0.1

F - 33.55 - 0.1(98.1 x cos20) = 10 x 1

F - 33.55 - 9.2 = 10

F = 10 + 33.55 + 9.2

F = 52.75 N

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The common housefly has 12 chromosomes, which means that each parent contributes 6 chromosomes to their offspring.

When these chromosomes combine during fertilization, there are a variety of possible combinations that can form. The exact number of different chromosome combinations that can form in the offspring depends on the specific genetic makeup of each parent. However, one can calculate the number of possible combinations using a mathematical formula known as the binomial coefficient.

In this case, the formula would be (2n)! / (n! * (2n - n)!), where n represents the number of chromosomes contributed by each parent. Plugging in n=6, we get a total of 924 possible chromosome combinations that can form in the offspring of two common houseflies.

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Answer:

v = 1.98 mph

Explanation:

Given that,

Speed to travel one mile is 100 mph

Speed to travel another mile is 1 mph

The formula used to find your average speed is given by :

\(v=\dfrac{2v_1v_2}{v_1+v_2}\)

Putting the values, we get :

\(v=\dfrac{2\times 100\times 1}{100+1}\)

v = 1.98 mph

So, yours average speed is 1.98 mph.

Answer:

b

Explanation:

because f its electronic configuration 2:8 indicating that it has 8 electrons in its outer most energy level

Relative humidity represents the actual amount of water vapor present in the air, relative to the maximum amount of water vapor that the air can hold at a given temperature. Essentially, it is a measure of how close the air is to being saturated with water vapor. The relative humidity is expressed as a percentage, and it is an important factor in determining how comfortable we feel in a particular environment.

For instance, if the relative humidity is high, it can make us feel more hot and sticky because our sweat does not evaporate as quickly from our skin. Conversely, low relative humidity can make us feel more dry and uncomfortable, especially in our nasal passages and throat. Understanding relative humidity is important for many applications, such as weather forecasting, agriculture, and indoor air quality. In summary, relative humidity is a crucial measure of the water vapor content in the air, and it plays an important role in our daily lives.

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Answer:

C. 199.9 s

Explanation:

3 minutes = 3×60 = 180 seconds.

the turtle moves in that time 180×10 = 1800 cm.

in other words the rabbit gave it that much head-start (it does not matter if that was at the begin of in the middle of the race).

the rabbit moves with 10×10cm/s = 100cm/s.

the rabbit needs therefore 1800/100 = 18 seconds for the

1800 cm.

at that time the turtle has added another 18×10 = 180 cm.

for which the rabbit needs 180/100 = 1.8 seconds.

during that time the turtle has added 1.8×10 = 18 cm.

and so on.

in formal mathematics this looks like this :

1800 + 10x = 100x

after x seconds of the rabbit running both will have run the same distance, and it is a tie.

1800 = 90x

x = 20 seconds

so, at that point, the rabbit was actively running for 20 seconds and raced 20×100 = 2000 cm

and the turtle was actively running for 180 + 20 = 200 seconds, and also covered 200×10 = 2000 cm.

but our question tells us that the turtle won by 10 cm.

so, the race was over a little bit before these 200 seconds (for a tie).

this means, the rabbit could not run the last 10 cm for the tie (because the race was over and the turtle had won).

the rabbit would have needed 10/100 seconds for these 10 cm.

as speed = distance/time

we need to divide distance by speed

distance/1 / distance/time

to get time.

so,

10cm/1 / 100cm/s = 10s/100 = 1/10 s

so, we need to deduct this 1/10 s from the 200 seconds of the turtle (and also from the 20 seconds for the rabbit).

the race lasted of course the whole time the turtle was running (while the rabbit was resting, officially still participating in the race with speed 0 for 3 minutes).

and so, the race was 199.9 s long.

Given:

The gravitational constant, G=6.67259×10⁻¹¹ N·m²/kg⁻²

The mass of the moon, M=7.36×10²² kg

The radius of the orbit of the satellite, R=955.2 km=955.2×10³ m

To find:

1. Satellite's speed.

2. The period of satellite.

3. The acceleration of the satellite.

Explanation:

1.

The gravitational force applied by the moon on the satellite provides the satellite with the centripetal force that is neccessary for the satellite to orbit the moon.

Thus,

Where F_c is the centripetal force, F_g is the gravitational force, and v is the orbital velocity of the satellite.

On substituting the known values,

2.

The orbital period of the satellite in seconds is given by,

Thus the period of the satellite in hours is given by,

On substituting the known values,

3.

The acceleration of the satellite is given by,

On substituting the known values,

Final answer:

1. The orbital velocity of the satellite is 23267.46 m/s

2. The period of the satellite is 0.74 hr

3. The acceleration of the satellite is 5.38 m/s²

Answer:

3,080 J

Explanation:

280 x 11 =3,080 J

Answer:

endoplasmic reticulum