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Q. A 0.22kg arrow with a velocity of 15.00 m/s to the west strikes and pierces the center of a 3.00 kg target. What is the final velocity of combined mass? Answer in m/s.
What is the decrease in kinetic energy through the collision?
Q. A 35 g bullet moving at 475 m/s strikes a 2.50 kg wooden block. The bullet passes through the block, leaving at 275m/s. The block was at rest while it was hit. How fast is it moving when the bullet leaves?
How many J of energy must be removed when 156 g of steam, at a temperature of 175.0 °C, is cooled and frozen into 156 g of ice at 0 °C.
A crate of 31.9- tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move while your force exceeds 345. After that you must reduce your push to 247 to keep it moving at a..
Find the electric field inside the cylinder
Find the magnitude of the electron acceleration. Under an influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt.
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
What is the focal length of this mirror. If the object is 25 cm in front of the mirror, what is the image distance.
What is closing equilibrium temperature of the tin-water
how high above the target must the rifle barrel be pointed.
Find out the magnitude of its average acceleration between those points. Find the direction of its average acceleration between those points.
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
The gravitational force exerted on a baseball is 2.23 N down. A pitcher throws the ball horizontally with velocity 14.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 169 ms. The ball starts from rest.
Discover the horizontal and vertical displacement
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