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A 0.031 kg aluminum bullet traveling at 487 m/s strikes an armor plate and comes to a stop. If all its energy is converted to heat that is absorbed by the bullet, what is the bullet's temperature change in degrees Celsius? (This is a multi-step problem.)
A 1.5 kg object has a velocity of 5j m/s at t=0. It is accelerated at a constant rate for five seconds after which it has a velocity of (6i+12j) m/s
A charge of 80nC is uniformly distributed along the x axis from x = 0 to x = 2.0 m. Determine the magnitude of the electric field at a point on the x axis with x= 8.0m
Determine what is the electric field strength (in Newton's/coulomb) at a point in space where a proton (m = 1.67E-27 kilogram) experiences an acceleration of 3.1E+04 m/s2
A hot air balloon is a bit like a bubble in water. It rises in air when the mass of relatively cool surrounding air displaced by the balloon is greater than the mass of the balloon and the gondola that hangs below it.
If it has a mass of 14.0 g, what is the minimum current (in Amperes) through the wire that would cause a magnetic force equal to its weight
A mass of 2.4 kg is moving at 19.2 m/s in the positive x direction. What is the total kinetic energy of both masses
In the picture below, a 10 kg bar 1.2 m long is set up to rotate about its center (the dark circle). Determine the net torque on the bar
A 57 kg skier starts from rest at a height of H = 19 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal.
A meteor of mass 575 kg has speed 90.0 m/s when it is 800 km above the surface of the Earth. It is falling vertically and strikes a bed of sand. What is the average force exerted by the sand on the meteor
A particle oscillates in simple harmonic motion with a period of 2.04 ? s and an amplitude of 3.94? cm. At t=0,it is at z=?2.0 cm and it is moving toward z = 0.
Julie drives 100 mi to her Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 25mph and the other half at 80. On her return trip, she drives half time at 25mph and half the time at 80 mph.
A 76 kg jumper lands stiff-legged on the floor and changes his velocity from -8 m/s to zero in 0.3 seconds. what happens to the ground reaction force
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