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A red stone with a mass of 2.5 kg slides on a smooth surface with a speed of 5.00 m/s along the x?axis. It has an elastic collision with a stationary blue stone which has a mass of 3.6 kg. After the collision the red stone has a velocity of 4.00 m/s at an angle of 45.5 degrees relative to the x axis.
A) What is the initial kinetic energy?
B) What is the velocity of the blue stone?
C) What is vx and vy for the blue stone?
D) What is the direction of the blue stone relative to the x axis after the collision?
A 2.00 m long rope is stretched between two supports with a tension that makes the speed of transverse waves 48.0 m/s. What are the wavelength of the second overtone
The second lens is a biconcave thin lens (index of refraction n = 1.57) and has a radius of curvature of 25.0 cm for both front and back surfaces. Where will be the image form?
The measured current in a circuit in your uncle's house is 12 A current. In this circuit, the only appliance that is on is a space heater that is being used to heat the bathroom. What is the voltage at the wall outlet in the bathroom
A gray kangaroo can bound across level ground with each jump carrying it 9.2 from the takeoff point. what is the max height above the ground
After the Sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. Calculate the average density of the white dwarf
A model rocket is fired upward. The rocket's average initial acceleration is 40.5 m/s2 until the fuel burns out in 0.805 s. How high does the rocket go
a skier starts from rest at the top of a hill inclined at 10.5 degrees. The hill is 200m long and the coefficient of friction is .075. How far does she slide before coming to a rest
A 90--nozzle with exit diameter d is attached to a hose of diameter 3d with pressure p. The nozzle changes the direction of the water flow from the hose through an angle of 90-. Calculate the magnitude of the force of the water on the nozzle if ..
Two capacitors are connected to a battery. The battery voltage is V = 50 V, and the capacitances are C1 = 2.00 µF and C2 = 4.00 µF. Determine the total energy stored by the two capacitors when they are wired (a) in parallel and (b) in series.
A very large box of doughnuts weighs 122 N on earth. (a) What is its mass (kg) on earth? (b) What is its weight (N) on Jupiter where the free-fall acceleration is 25.9 m/s2? (c) What is its mass (kg) on Jupiter?
a patient has a far point of 39.5 cm and a near point of 21.4 cm. what power in diopters should be prescribed to
Mary applies a force of 79N to push a box with an acceleration of 0.56 m/s. When she increases the pushing force to 90 N, What is the mass of the box
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