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Question: A child's game consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. By compressing the spring, the child can launch the ball up the ramp. The spring has a spring constant k, the ball has a mass m, and the ramp raises a height h. The spring is compressed a distance S in order to launch the ball. When the ball leaves the launching ramp its velocity makes an angle ? with respect to the horizontal. The spring constant = 1000.0 N/m, the spring's compression is 4.00 cm, the ball's mass is 55.0 grams, the height of the ramp is 15.0 cm, and the top of the table is 1.20 m above the floor. With what total speed will the ball hit the floor? (Use g = 10.0 m/s2)
Coherent sources A and B emit electromagnetic waves with wavelength 2.00 \rm cm. What is the phase difference at P between these two waves
Ohm's Law isvalid when for a given piece of material the ratio V/I is the samefor a wide range of voltages and currents. For anOhmic conducting material the resistivity depends on the electricfield and the current density. Acurrent of 0.5 A exists in..
What is the difference between a vector's x scalar component, How do equilibrant and resultant vectors relate to each other
What is the speed v2 of the mouse and the 0.25-kg cart?
You drop a rock from rest from the top of a tall building. It takes 0.117 s for the rock to pass by a 2.10-m high window. How far from the top of the building is the top of the window? (Express your answer to three significant figures.)
In a television tube, electrons travel down the tube and strike the fluorescent material at the end of the tube. Their impact with this material causes light to be emitted, How long does the acceleration take
A block of iron of mass 3.00 kg is charged positively with the net charge of 0.010 C. How many electrons are lost from the neutral iron to be charged this much
A 1.25 meter long wire has a mass of 150 grams. The wire is stretched with a force of 2 Newtons. What is the velocity of a wave over the wire
Two 1.90-cm-diameter disks spaced 2.10mmapart form a parallel-plate capacitor. The electric field between the disks is 5.10×105V/m, What was the electron's speed as it left the negative plate
A ball of mass 0.40 kg is fired with velocity 180 m/s into the barrel of a spring gun of mass 1.5 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to fr..
A0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s.
How much heat is released when a mixture containing 23.0 g CS2 and 23.0 g Cl2 reacts by the following equation CS2(g) + 3Cl2(g) ---> S2Cl2(g) + CCl4(g) delta H= -230 kJ
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