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Why is it justified to say that the momentum in the horizontal direction is conserved over the collision interval? Is momentum conserved before and after the collision? Explain.
find the lowest frequency that make constructive interference.
Ben lets his toys slide down a 1.5m ramp at a 45 degree angle in a wooden box. The box starts out at rest, and speeds up as it goes down. Ben finds the acceleration to be 3.4 m/s^2.
An electron initially at rest is accelerated between two parallel plate 2.000 cm apart, What kinetic energy does the electron have when it hits the positive plate
A thermos contains 141 cm3 of coffee at 92.9 °C. To cool the coffee, you drop two 10.4-g ice cubes into the thermos. What is the final temperature of the coffee
The outside mirror on the passenger side of a car is convex and has a focal length of -5.4 m. Find the image distance of the truck
The circumference of the moon's orbit around the earth is 2.415275282*106km. Calculate the average orbital speed in m/s of the moon
A 32g bullet is fired from a rifle at 380 m/s into a water bottle at a pointblank range. The bullet travels completely through the 12 cm long bottle, find the average force exerted by the water on the bullet
A falling stone takes 0.28 s to travel past a window 2.2 m tall. From what height above the top of the window did stone fall.
question a proton has a speed of 3.0 x 106 ms in a direction perpendicular to a uniform magnetic field and the proton
A ball is projected horizontally from the top of a building.One second later another ball is projected horizontally fromthe same point with the same velocity. What will the time difference be when the balls hit the ground
A magnetic field of magnitude 0.38 T is directed vertically upward, Find the magnetic flux through a flat surface of area 22 cm2 if the surface is horizontal
two equally charged particles held 4.6 x 10-3 m apart are released from rest. the initial acceleration of the first
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