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On a frictionless air track, a 0.125 glider moving at 1.05 to the right collides with and sticks to a stationary 0.235 glider.
(a) What is the net momentum of this two-glider system before the collision?
(b) What must be the net momentum of this system after the collision?
A fireman 54.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 22.0° above the horizontal. at what height will the stream of water strike the building
An object moving on the x axis with a constant accelerationincreases it's x coordinate by 42.7 m in a time of 6.01 seconds andhas a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion.
Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g.Silver has 47 electrons per atom, and its molar mass is 107.87g/mole.
A 35 kg child slides down a playground slide from a height 2.0 m above the bottom of the slide. The speed of the child at the bottom is 2.8 m.s^-1. If the length of the slide is 3.2. what is the frictional force between the child and the slide.
Suppose the scale of a crown read 7.84 N in air and 6.84 N in water. Gold density = 19.3 g/cm3 , What would the scale reading be in water
A 0.120 kg block on a horizontal frictionless surface is attached to the spring whose force constant is 572 N/m. The block is pulled from its equilibrium position at x = 0 m to a displacement x = +0.080 m and is released from rest. The block after th..
A proton travelling along the axis of a 2cm ring with a charge density of 5nC/cm is 5 cm from the center of of the ring and travelling toward it. What speed must it have to cross the ring's plane
A car manufacturer claims that you can drive their new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the car is 2.0 m wide, how high is its center of gravity?
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. What work does the racket do on the ball
A 15 ohm resistor is connected to the terminal of a 12 V battery, Sketch the circuit and Calculate the current in the circuit
An iceberg floating in seawater as shown below in Figure, is extremely dangerous because much of the ice is below the surface. What fraction of the iceberg lies below the water level
a popgun uses an ideal spring for which k=2000N/m. how high can the gun shoot a 5.0gram projectile
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