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a meter stick is shot horizontally from a meter stick projector at a speed of 9c how large will it be relative to its
two 185 kg ice sleds that are placed a short distance apart one directly behind the other a 24 kg cat initially
a 2150 kg railroad flatcar which can move with negligible friction is motionless next to a platform a 257 kg sumo
a force in the negative direction of an x axis is applied for 34 ms to a 040 kg ball initially moving at 14 ms in the
a 20kg sled initially at rest slides down a hill which is 20m tall if the total work done by forces of friction and air
a 0750 kg ball falls directly down onto concrete hitting it with a speed of 120 ms and rebounding directly upward with
a steel ball of mass 0400 kg is fastened to a cord that is 600 cm long and fixed at the far end the ball is then
particle a and particle b are held together with a compressed spring between them when they are released the spring
carlos does a chin- up in gym class and raises himself 08 m if carlos has a mass of 62 kg how much work does he
a 30 year old women takes a trip on a rockect leaving her 30 year old brother behind she travels at a speed of 8c and
a game show contestant won a prize by pushing a bowling ball 20 m using her nosethe amount of work done was 1470 j how
a 3000 kg truck traveling north at 30 kmh turns east and accelerates to 48 kmha what is the change in the trucks
a boat observed by an observer on the shore moves at right angle to the motion of a stream at 4ms if the stream is
a 6-kg bowling ball rooling at 5ms strikesa stationary 4-kg bowling ballif ball number one is moving forward at 2ms
in the figure below projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus the alpha
in the figure below block 1 of mass m1 slides from rest along a frictionless ramp from height h 230 m and then
a 45kg ham is thrown into a stationary 15-kg shopping cartat what speed will the cart travel if the ham had an initial
on a particular afternoon in houston the nitrogen n2 molecules in the air have an rms speed of 511 ms what is the rms
the atmosphere on mars is almost all carbon dioxide co2 and has a pressure of about 69times102 pa much less than that
a cube of wood and a cube of concrete each 017 m on a side are placed side by side one of the long faces of the
a block of iron at 430degc has mass 230 kg if 350times104 j of heat are transferred to the block what is its resulting
an athlete runs 400m which is exactly one loop on an olympic stadium making consecutive 100m distances in 101 103 102
a stone tosses at an angle of 60 degrees to the horizontal from the roof of a building at 10 ms hits the ground in 3s
a particular engine has a power output of 427 kw and an efficiency of 222 the engine expels 7236 j of energy as heat in
a spherical water drop 37 m in diameter is suspended in calm air due to a downward-directed atmospheric electric field