a=80 rad/s A high-speed drill rotating ccw at 2300 Ipm comes to a halt in 3.0 s. How many revolutions does it make as it stops?

Ultra = X-ray

Explanation:

how are things going to paint the roof for beginners painting and decorating the whole house so I'm going away with a few sports mates for a couple nights for beginners but will have a look painting at a time and see what is going to be Strong enough

Answer: True

Explanation:

Answer:

9172.8 N

Explanation:

F = ma

F = (936 kg)(9.8 m/s^2)

F = 9172.8 N

Answer:

V= in square root 2KE/M=2(143.3J)/0.047kg=6097.8723 in square root around 78.1 approxmete

Explanation:

Answer:

I think D

Explanation:

technically usually the warmer object/substances particles move master which causes friction among the particles plus the kinetic energy being converted to thermal energy, so i would say the hand.

The velocity of the car which travels 400 meters towards north in 20 seconds is 20m/s.

Velocity is the directional speed of an object which is under motion as an indication of the rate of change in the position which is observed from a particular frame of reference by the observer and it is as measured by a particular standard of time as well. It is a vector quantity as it has both the magnitude and direction. The SI unit of velocity is meter per second (m/s).

The velocity of the car can be calculated by the formula:

Velocity = Displacement / time

Displacement = 400 m towards north direction

Time = 20 seconds

Velocity = 400m/ 20 sec

Velocity = 20m/s

Therefore, the velocity of the car is 20m/s.

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When a bloodstain falls perpendicular to a surface, it forms a circular shape. Bloodstain Pattern Analysis (BPA) is a method used in forensic science to interpret patterns in bloodstains that are found at crime scenes.

Bloodstain patterns may provide vital clues about the crime scene, which may then be used to reconstruct what happened. A forensic scientist may use various techniques to examine bloodstain patterns.

There are four primary components of bloodstain pattern analysis, which are:-

The bloodstain itself- The pattern of the bloodstain- The surface that the bloodstain landed on- The position of the bloodstain relative to other objects

The interpretation of bloodstain patterns necessitates the use of scientific principles and research from physics, biology, and mathematics. In addition, bloodstain pattern analysis is used in combination with other forensic techniques, such as DNA analysis and forensic ballistics.

A bloodstain pattern can provide a wealth of information about a crime scene. The size and shape of a bloodstain may be used to reconstruct the crime.

The pattern of blood spatter may indicate the location of the assailant, the victim's position, and the type of weapon used in the attack.

Finally, bloodstains can also be used to determine the amount of blood lost by a victim, which may help medical personnel treat the victim's injuries more effectively.

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Answer:

Torque = I α = 1/2 M R^2 α       where α is the angular acceleration

Torque = F R      where F is applied to a distance R from center

F R = 1/2 M R^2 α

M = 2 F / (R α) = 2 * 50 / (.15 * 110) = 6.06 kg

Answer:

1) Given acceleration due to gravity as 10N/kg

N/kg is the same as m/s². From W=mg

making g subject ... you have g = W/m

where m is in kg and W is in N

hence we have N/kg

So g=10ms-²

Gravitational Potential Energy=mgh

At height 4m

PE=6 x 10 x 4

=240J.

At height 6m

PE=6 x 10 x 6

=360J.

2) KE=1/2mv²

=1/2 x 6 x 5² =75J

When the speed is doubled... it becomes 2x

so V = 2x5=10ms-¹

KE=1/2 x 6 x 10² =300J.

3) KE=1/2mv²

KE is given as 100J

mass=0.5kg

Making V the subject

you have v² =2KE/m

v²=2 x 100/0.5

v²=400

taking square root

v=20ms-¹.

Have a great day✌

A drill bit is a cutting tool used to create a circular hole. The drill bits used in air rotary drilling rigs are hollow steel.Petroleum drill bits can be 36 centimeters , [14 inches] in diameter. As the drill bit rotates and cuts through the earth, small pieces of rock are chipped off. Drill bits are used to make a circular hole.

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Answer: The author uses metaphors to explain how childeren taking on certain traits by (put what story is about here). The effect is that (put what happened at the end of story here).

Explanation:

Answer:

Kundan should sit at more that 2.5 meters from the location of the fulcrum on the side opposite to the side where Bijaya sits

Explanation:

The given parameters are;

The weight of Kundan, F₁ = 200 N

The weight of Bijaya, F₂ = 500 N

The distance of Bijaya from the fulcrum, d₂ = 1 m

Therefore, for Kundan to lift Bijaya, Kundan should sit at a location further than the point where both the moment of Bijaya and Kundan about the fulcrum are equal

Moment of a force, M = The magnitude of the force, F × The perpendicular distance to the point at which the force acts, d

At equilibrium, the sum of the clockwise moment = The sum of the anticlockwise moment

Taking the moment of Kundan as being in the anticlockwise direction and the moment of Bijaya as acting in the clockwise direction, we have;

F₁ × d₁ = F₂ × d₂

∴ 200 N × d₁ = 500 N × 1 m

d₁ = 500 N·m/(200 N) = 2.5 m

Therefore, when Kundan sits at the point d₁ = 2.5 m, away from the fulcrum on one side of the sea saw and Bijaya sits at the point 1 m from the fulcrum on the other side of the sea saw, both Kundan and Bijaya will have the same moment

For Kundan to lift Bijaya, therefore, Kundan as to sit at a point further than 2.5 m from the fulcrum on the opposite side of the fulcrum from Bijaya.

The maximum value that can be taken using the knapsack, given the items' {value, weight} pairs and a knapsack capacity of 20, is 60. Therefore the correct option is A. 60.

To find the maximum value that can be taken using the knapsack, we can apply the concept of the Knapsack Problem. The Knapsack Problem is a classic optimization problem in computer science.

Given the items' {value, weight} pairs and the knapsack capacity of 20, we need to select a combination of items that maximizes the total value while ensuring that the total weight does not exceed the knapsack capacity.

Using a dynamic programming approach, we can construct a table to track the maximum value achievable at each weight and for each item. Starting with an empty knapsack (weight = 0), we iterate through each item and update the table based on whether including the current item would increase the total value.

By considering all possible combinations, we can determine that the maximum value achievable with the given items and knapsack capacity is 60.

Therefore, the correct answer is A. 60.

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To bring power to the NEMA 5-15R receptacle from your home's electrical panel for the 1,500 W electric heater, you would need to purchase a minimum conductor size (AWG) of **14 AWG**.

The choice of conductor size (AWG) depends on the electrical load and the circuit's ampacity requirements.
For a 1,500 W electric heater, considering it operates at 120 V, you can calculate the current using the formula: Current (A) = Power (W) / Voltage (V).
In this case, the current would be approximately 12.5 A (1,500 W / 120 V).

According to the National Electrical Code (NEC), a 15 A circuit requires a minimum conductor size of 14 AWG.
Since the current for the electric heater is 12.5 A, a 14 AWG conductor would be sufficient to handle the load safely and meet the NEC requirements.

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Power sources that are connected in parallel should have the same voltage output. This statement is true.

What does it mean when we say two power sources are connected in parallel?  Power sources are connected in parallel to increase the current output. This means that the positive terminals of the power sources are connected to the other positive terminals, and the negative terminals of the power sources are connected to the other negative terminals. This results in the voltage output remaining the same, but the current output increasing. This is useful when more current is required for a particular application. To summarize, when power sources are connected in parallel, the voltage output should remain the same, and the current output should increase.

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Answer:

It’s 7 hours

Explanation:

You have to use the formula your teacher has given to you plug in the numbers then solve be sure to use a calculator made for physics it helps a lot :)

Answer:

it would be nine

Explanation:

just subtract 8 from 17

Answer: the answer is d

Explanation:

I got it right

Gamma rays travel straight; alpha and beta rays are bent in opposite directions. Which of the following describes the direction of motion of alpha, beta, and gamma rays in the presence of an external magnetic field.

Gamma rays travel straight; alpha and beta rays are bent in opposite directions.  In the presence of an external magnetic field: - Gamma rays, being electromagnetic waves with no charge, are not affected by the magnetic field and continue to travel straight.

- Alpha rays, consisting of positively charged helium nuclei, are bent in one direction. - Beta rays, consisting of negatively charged electrons, are bent in the opposite direction due to their opposite charge.Gamma rays travel straight; alpha and beta rays are bent in opposite directions. Which of the following describes the direction of motion of alpha, beta, and gamma rays in the presence of an external magnetic field.

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46,756,790 mg = 46.75679 kg

5.6 hours = 20,160 seconds

13.5 cm = 5.315 inches

47 °F = 8.333 °C

To convert milligrams (mg) to kilograms (kg), we divide the value by 1,000,000 (since there are 1,000,000 milligrams in a kilogram). Therefore, 46,756,790 mg divided by 1,000,000 equals 46.75679 kg.

To convert hours to seconds, we multiply the value by 3,600 (since there are 3,600 seconds in an hour). Therefore, 5.6 hours multiplied by 3,600 equals 20,160 seconds.

To convert centimeters (cm) to inches, we divide the value by 2.54 (since there are 2.54 centimeters in an inch). Therefore, 13.5 cm divided by 2.54 equals 5.315 inches.

To convert Fahrenheit (°F) to Celsius (°C), we use the formula °C = 5/9 (°F - 32). Plugging in the value 47 °F into the formula, we get °C = 5/9 (47 - 32), which simplifies to °C = 5/9 (15) = 75/9 ≈ 8.333 °C.

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It would do two possible things: It would push the spacecraft forward and it would also tilt it forward. That then simply means that the spacecraft can rotate and has the possibility to accelerate with the propellers push. The forces here is the push of the propellers. Another factor here is also the torque needed to be able to move the spacecraft.

A propeller mounted on the front of a spacecraft in deep space would not be able to do anything.

What is a propeller?

A propeller is a device with rotating blades that produces thrust by pushing against a fluid such as air or water. Propellers are designed to convert rotational energy into thrust by pushing against a fluid such as air or water. As the propeller blades rotate, they create a pressure difference between the front and back surfaces of the blades, generating a force that propels the device forward.

As there is no medium such as air or water for it to push against  propeller mounted on the front of a spacecraft in deep space would not be able to produce any thrust. In order for a propeller to produce thrust, it needs a fluid medium to push against. This is why propellers are used in air and water, but not in space where there is a vacuum. In space, spacecraft use other propulsion systems such as rockets or ion thrusters to generate thrust.

Therefore, a propeller mounted on the front of a spacecraft in deep space would not be able to produce any thrust.

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Answer:

the answer is letter A im not sure

Answer:

The new pressure will be 12 atm

In terms of increasing radius, the order of the three stars with the same surface temperature would be: Star C (main sequence star), Star A (giant star), and Star B (supergiant star). This order is based on the evolutionary stages of stars, where main sequence stars have a smaller radius compared to giant stars, and supergiant stars have the largest radius.

The radius of a star is closely related to its evolutionary stage and mass. Main sequence stars, like Star C, are in a stable phase of hydrogen fusion and have a relatively smaller radius. Giant stars, like Star A, have exhausted their core hydrogen fuel and expanded in size, resulting in a larger radius compared to main sequence stars. Supergiant stars, like Star B, are even more evolved and have significantly larger radii due to various processes occurring in their cores.

Therefore, the increasing order of radius for the three stars with the same surface temperature would be Star C (main sequence), Star A (giant), and Star B (supergiant).

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Answer:

Radio waves

Explanation:

Radio waves are a type of electromagnetic (EM) radiation with wavelengths in the electromagnetic spectrum longer than infrared light. They have frequencies from 300 GHz to as low as 3 kHz and corresponding wavelengths from 1 millimeter to 100 kilometers.

Answer:

Yes, that's a good way to think about it. The entire universe can be described as a vast collection of matter and energy that interact with one another in complex ways. Energy is transferred from one object to another through various processes, such as radiation, conduction, and convection. These interactions result in the movement and transformation of matter and energy, which in turn shape the physical and chemical characteristics of the universe as a whole. So, in a sense, the entire universe can be seen as a dynamic system of energy transfer.

Explanation:

(a) The total number of bright fringes is 172, including the central fringe and those on both sides. (b) The fringe that is most distant from the central bright fringe will occur at an angle of approximately 3.00 degrees.

When a laser beam of wavelength 585 nm is passed through two parallel slits that are 0.0116 mm apart, bright fringes are observed on a distant screen due to constructive interference of the light waves. The total number of bright fringes including the central fringe and those on both sides can be determined by considering the maximum value of the sine function. This leads to the formula N = (d sinθ)/λ, where d is the distance between the slits, λ is the wavelength of light, θ is the angle of diffraction, and N is the number of bright fringes. Using this formula, the total number of bright fringes is calculated to be 172. The fringe that is most distant from the central bright fringe occurs at an angle of approximately 3.00 degrees.

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Answer:

ok

Explanation:

Ok