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Compressed air is used to fire a 50 gram ball vertically upward from a 1.0 meter tall tube. The air exerts an upward force of 2.0 N on the ball as long as it is in the tube. Evaluate how high does the ball go above the top of the tube?
A toy car with a mass of 120 g moves to the right with a speed of 0.62 m/s. A small child drops a 21.0-g piece of clay onto the car, What is the change in speed of the car
Three identical masses of 340 kg each are placed on the x axis. One mass is at X1 = -120cm, What is the direction of the net gravitational force on the mass at the origin due to the other two masses
A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit by a bat. What is force on bat
A photon with a wavelength of 5.70e-11 m is scattered by a loosely bound electron in a metallic target and exits at an angle of 135° from its original direction. What is the wavelength of the scattered photon?
a 600.0-n bricklayer is 1.5 m from one end of a uniform scaffold that is 7.0 m long and weighs 800.0 n. a pile of
The plane has a telescopic bombsight set so that the bomb hits the target seen in the sight at the moment of release. At what angle from the vertical was the bombsight set
a 2.5 kg particle is in simple harmonic motion in one dimension and moves according to the equationx 6.4 mcosp3 radst
Two spherical asteroids have the same radius R. Asteroid 1 hasmass M and asteroid 2 has mas 2M. What is the speed of each asteroid just before they collide
A fire hose ejects a stream of water at an angle of 30.4 ° above the horizontal. The water leaves the nozzle with a speed of 29.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit t..
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
A 10.0 meter long, 200 N ladder rests against a wall frictionless. Obtain the coefficient of friction if the man stops 6.00 meter up the ladder
At a distance of 25m from an isotropic 100 MHz radio source the intensity is 120W/m2. What is the rms electric field at 25m? What is the total power transmitted by the source?
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