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A proton has a speed of 0.80c.Calculate the rest energy of the proton.
Calculate the kinetic energy of the proton.
Calculate the total energy of the proton.
Calculate the magnitude and direction of net electric field. what is the efficiency of the engine under those conditions.
An airplane is flying with a velocity of 93.0 m/s at an angle of 25.0 degrees above the horizontal, How far from the dog will the suitcase land in m
Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 448 m/s. What is the temperature (in Kelvin) of the environment
A 4.7 kg block moving at 4.7 m/s makes a head-on elastic collision with a stationary block of mass 3.9 kg. Find the kinetic energy of the system after the collision
How far from a point on the floor directly below the edge. Why is it a good idea to have your hand extended forward when you are getting ready to catch the fast moving baseball with your bare hand.
A straight rod of length L = 22.2 cm, carries a uniform charge, ? = 3.00 × 10-6 C/m, What is the magnitude of the electric field at yP = 50.0 cm
A 67 kg man weighs 637 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 19 percent of the body weight.
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
A 9.59-g bullet, moving horizontally with an initial speed v0, embeds itself in a 1.45-kg pendulum bob that is initially at rest. Find the initial speed of the bullet.
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .
A car is traveling around a horizontal circular track with radius r = 150 m at a constant speed v = 28 m/s as shown, What is the magnitude of the car's acceleration, What is the x component of the car's acceleration when it is at point A
An old trick to find out if a train is coming is to put your ear on the rails of the track. Why is this more effective than just listening for the sounds the train makes in air.
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