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A rocket with a mass of 2.7 × 106 kilogram has a relativistic kinetic energy of 2.7 × 1023 Joule. Determine how fast is the rocket moving?
A slide projector needs to create a 98.0cm -high image of a 2.20cm cm -tall slide. The screen is 304cm cm from the slide. What focal length does the lens need
The difference in potential between the accelerating plates of a TV set is about 26000 V. If the distance between these plates is 1.5 cm, find out the magnitude of the uniform electric field in this region.
An object 2.01 cm high is placed 40.2 cm to the left of a converging lens having a focal length of 30.5 cm. A diverging lens with a focal length of ?20.0 cm is placed 110 cm to the right of the converging lens.
Particles P and Q areinitially at rest 1.0 m apart. P has a mass of0.10 kg and Q a mass of 0.30kg. P and Q attract eachother with a constant force of 10–2 N. No external forces act on the system.
Your car's wheels are 65 cm in diameter and the wheels are spinning at an angular velocity of 107 rad/s. How fast is your car moving in kilometers per hour
A 6 kg bowling ball with a radius of 12 cm rolls in a straight line past you at a speed of 3 m/s. What are the components of the ball's total angular momentum about your position
Given the standard molar volume of gas is 22.71 L/mol at a temp of 273.15K and a pressure of 1 bar, what is the value of the ideal gas constant
You push your physics book 1.70{\rm m} along a horizontal tabletop with a horizontal push of 2.80{\rm N} while the opposing force of friction is 0.700{\rm N}
A person bounces up and down on a trampoline, while always staying in contact with it. The motion is simple harmonic motion, What is the maximum speed attained by the person
The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15-g nail
question1a rocket is fired at a speed of 87.0 ms from ground level at an angle of 50.0 deg above the horizontal. the
A car is hauling a 92 kg trailer, to which it is connected by a spring. The spring constant is 2250 N/m. The car accelerates with an acceleration of0.34 m/s2. By how much does the spring stretch?
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