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a surveyor starts at the southeast corner of a lot and charts the following displacements a 600 m n b 400 m w c 200
a spring is stretched a distance of dx 40 cm beyond its relaxed length attached to the end of the spring is an block
a horizontal force of magnitude f 149 n is used to push a box of mass m 5 kg from rest a distance d 13 m up a
a soccer ball is kicked simultaneously by bryan and anthony bryon kicks with 700 n force to the west while anthony
a 2 kg ball moving at 3 ms hits a wall and bounces off immediately after the collision it moves at 3 ms in the opposite
a ball of mass 7 kg is thrown straight up in the earths gravitational field with an initial speed v0 16 msa what is
a child is playing with a ball on a string the ball has mass 0065 kg the string has radius 12 m and assume that the
a block of mass m 15 kg slides between two springs of spring constant kleft 30 nm and kright 57 nm the distance
the driver of a 2000 kg car moving at 30 ms presses on the break pedal if the braking force is 10000 n how far does the
a soccer player kicks a soccer ball initially at rest setting it in motion at a velocity of 30 ms if the ball has a
a 15 kg ball falls onto a floor just before it strikes the floor its velocity is 12 ms the ball bounces up with a
mike jumps 1 m down onto a walkway his downward motion stops in 0020 seconds if he forgets to bend his knees what force
a boy on a roof throws one ball downward and an identical ball upward the ball thrown downward hits the ground with 100
sarah and her bicycle have a total mass of 40 kg her speed at the top of a 10 m high and 100 m long hill is 5 ms if the
a jet engine is moving an airplane forward at a speed of 900 kmhr if the thrust of the engine is 1x105 n what is the
for safety reasons the speed of a child at the bottom of playground slide cannot exceed 60 ms what is the maximum
a pulley cable system on a construction site lifts 20000 n concrete block to a height of 40 m if this takes 2 minutes
during a baseball game a batter approaches the plate the pitcher hurtles the ball in the direction of the batter at a
a heat engine takes in 1000 j of energy at 1000 k and exhausts 615 j at 200 k what are the actual and maximum
an extension cord made of two wires of diameter 0129 cm no 16 copper wire and of length 24 m 8 ft is connected to an
a 450 cm3 block of aluminum d 27 gcm3 is lowered carefully into a completely full beaker of water what is the weight
a liter of water has a mass of 1 kg and the mass of a water molecule is 18 amu how many molecules of water are there in
given that the carbon atom has a mass of 12 amu how many carbon atoms are there in a diamond with a mass of 8
at a rock concert the engineer decides that the music isnt loud enough he turns up the amplifiers so that the amplitude
if it takes 40 j to push a large box 4 m across a floor what is the magnitude of the force on the box the push is in