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A box slides from rest down a curved slope. it's initial height is 30m above the ground, and it comes off the slope 8m above the ground. How fast is the box moving as it leaves the slope?
the top of pikes peak is 14100 ft above sea level. neglecting the variation of t with altitude and using the average
what velocity would a proton need to circle earth 1300 km above the magnetic equator where earths magnetic field is
A 1.26 kilogram bocce ball tools at 2.3 meters per second on a smooth surface and strikes a 0.210 kilogram pallino ball. If ball friction and spin are ignored, what is the speed of each ball
A particle of charge Q is fixed at the origin of anxy coordinate system. At t = 0 a particle(m = 0.776 g, q = 5.04 µC is located on thex axis at x = 18.7 cm, moving with a speed of39.8 m/s in the positive y direction.
Two waves are traveling in the same direction along a stretched string. The waves are 45.0° out of phase. Find the amplitude of the resultant wave
A(n) 11.9 g bullet is shot into a(n) 6191 g wooden block standing on a frictionless surface. Calculate the velocity of the bullet before striking the block
A child in a boat throws a 5.600 kg package out horizontally with a speed of 11.00 m/s. Determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 23.00 kg and that of the boat is 45.00 kg.
The impact with the racket gives the ball a constant acceleration over a distance of 47 cm. Illustrate what is the magnitude of the net force acting on the ball?
A ray of light in water n=1.33 enters a sheet of glass n=1.52 at a 30 degree angle of incidence, Find the angle of refraction
A motorcycle and rider have a total mass equal to 305 kg. What is the net force on the motorcycle
A space vehicle is traveling at 3760 km/h relative to Earth when the exhausted rocket motor is disengaged, What is the speed (in km/h) of the command module relative to Earth just after the separation
The plate on the back of a certain computer scanner says that the unit draws 0.38A of current from a 120V , 60Hz line. Find the average square of the current
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