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A projectile is fired vertically from Earth's surface with aninitial speed of 4.6 km/s. Neglecting air drag, how far above thesurface of Earth will it go?
When you weigh yourself on good old terra firma (solid ground), your weight is 144 lb . In an elevator your apparent weight is 124 lb.What is the magnitude of the elevator's acceleration? What is the direction of the elevators acceleration?
Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong...
Fred Jones owns 56 shares of the Robust Corporation's stock. Robust announces a 3 for 2 stock split. Explain how many shares will Fred have after this split?
Suppose a ball player throws a ball at an angle of 55 degrees and a speed of 25 m/s. Next to the ball thrower, What is the distance the ball is thrown
The Beretta Model 92S (the standard-issue U.S. army pistol) has a barrel 127 long. The bullets leave this barrel with a muzzle velocity of 334 .What is the acceleration of the bullet while it is in the barrel, assuming it to be constant?
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
An object has a weight of 4.5N in air, 3.4N in water and 3N in a salt solution. If the density of the water is 1000km m^-3, what is the density of the salt solution
When at rest, a proton experiences a net electromagnetic force that has a magnitude of 7.2 × 10-14 N and points in the positive x-direction. Find the magnitude and direction of the electric field
Calculate the time it will take this block when released from rest to travel a distance of 0.3 m along the ramp
Cartesian coordinate system is characterized by three orthogonal unit vectors (orts) i, j, and k, which are parallel to the x-, y-, z-axis, respectively. What are the coordinates of these vectors
A subway train is traveling at 83 km/h when it approaches a slower train 46m ahead traveling in the similar direction at 23 km/h.If the faster train begins decelerating at 2.1 meter per second square while the slower train continues at constant s..
How far from a 53.6 mm focal-length lens must an object be placed if its image is to be magnified 2.12X and be real.
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