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Projectile motion horizontal only:
1. A rifle is fired horizontally 9 meters above the ground. The bullets velocity is 257 m/s. How far away does the bullet land?
2. A cliff jumper needs to clear 6 meters of rock to land in deep water for a dive. If the cliff is 25 meters tall, how fast should he run to clear the rocks?
3. A Bartender slides a bottle down the bar, the customer misses it and it flies off the edge of the bar at 1.4 m/s. The bar is 1.5 meter tall. How far away does the bottle break?
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. what is the height of the hill
The front 1.20 m of a 1,350-kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. What is the magnitude of the average force on the car
A microwave oven can heat 205 of water from 20.0 to 90.0 in 2.00 . If the wavelength of the microwaves is = 15.2 , how many photons were absorbed by the water?
Atennis ball of mass 5.5*10-2and a speed of 39 M/s strikes a wall at a 45 degree angle, what is the direction of of the balls impuse in relation to the wall
A current flow in a circle loop is clockwise. What is the magnetic field at the center of the loop point
During an electrostatic field experiment, you assume that the electric field lines are in the plane of the paper, What condition determines the accuracy of this assumption
A satellite revolves around a planet at an altitude equal to the radius of the planet. The force of gravitational interaction between the satellite and the planet is F_0. Then the satellite moves to a different orbit, so that its altitude is tripl..
An object falls from a height h from rest. If it travels a fraction of the total height of 0.6995 in the last 1.00 s, Find the height of its fall
A farsighted woman breaks her current eyeglasses and is usingan old pair whose refractive power is 1.720 diopters. How far is hernear point from her eyes
question joe walks 4 blocks north then turns east and walks 1 block. he finally walks 3 blocks south. how far is joe
If the shortest wavelength produced by an x-ray tube is 0.441 nm, what is the voltage applied to the tube
the maximum wavelenght for photoelectric emission in tungsten is 230 nm. what wavelength of light must be used in order
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