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Imagine that you want to shoot an apple hanging in a branch with an arrow. You aim the arrow and at the exact time you shoot it, the apple falls from the branch. Will it hit? It should still hit the apple if the air resistance is negligible that day. Why will the projectile always hit the falling object it is aimed at if it is fired at the same time the object starts to fall?
A charge of -5 micro-coulombs is placed at x = 0 cm, y = 0 cm. Another charge of -5 micro-coulombs is placed at x = +22 cm, y = -50 cm. When measured counter-clockwise from the x axis, what angle is the electric force vector acting on the charge a..
What is velocity of insect after it has accelerated
What is the force of gravity on the satellite if it moves towards Earth so its distance is now one half the original distance and
A spool of thread has an average radius of 1- cm. If the spool contains 62.8 m of thread, how many turns of thread are on the spool.
question1with ones eye at a height of 1 m above water level on a lake one can just see over the horizon a point on the
What is the period of revolution? please give me answer and units to both questions. dont just give me equation
Marta flies past you at 78% of the speed of light, traveling in a spaceship that would measure 50 meters from end to end if it were at rest in your reference frame. If you measure the length of her spaceship as it goes by, how long will it be from ..
A simple harmonic oscillator consists of a block of mass 2.2kg attached to a spring of spring constant 26N/m. When t = 1.60 s, the position and velocity of the block are x = 0.128m and v = 3.170 m/s. (a) What is the amplitude of the oscillations? ..
define the speed of the particle when the string is parallel to the electric field.
A satellite orbits at a distance from the Earth's center of about 7.20 Earth radii, What distance (in meters) does the satellite travel in one day
You're 6.0 m from one wall of a house. You want to toss a ball to your friend who is 6.0 m from the opposite wall. What minimum speed will allow the ball to clear the roof
Starting from rest, a 1.8 10-4-kg flea springs straight upward. While the flea is pushing off from the ground, What is the flea's speed when it leaves the ground
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