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A hoop and a cylinder of the same mass and outer radius are rolled up an incline plane with the same speed. Which goes farther up the incline plane? Explain.
A coffee filter of mass 1.5 grams dropped from a height of 1 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter.
An airplane is flying with a velocity of 90 m/s at an angle of 25 above the horizontal. When the plane is a distance 126 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
A 1.50-m-diameter MRI solenoid with a length of 2.20m has a magnetic field of 1.60T along its axis. find the emf in one turn of the solenoid's windings
A charged capacitor is connected to an inductor. At time t=0 the charge on the capacitor is Q= 6uC. What is the amplitude of the current at that same instant
A projectile (mass = m) is launched vertically upward with initial velocity v. When it has reached a height h above its launch position, it is still moving upward, but at that moment it explodes into two pieces. For what time interval was this impa..
An office window has dimensions 3.5 m by 2.3 m. As a result of the passage of a storm, What net force pushes out on the window
A ball is thrown so that its initial vertical and horizontal components of velocity are 50 m/s and 15 m/s, Estimate the maximum height the ball reaches
A pipe open at both ends has a fundamental frequency of 120 Hz. what is the fundamental frequency of this pipe
Two gravitational forces act on a particle, in perpendicular directions. To find the net force, can we add the magnitudes of those two forces?
A runner runs 3.0 km, in a straight line, in 9.0 min and then takes 25 min to walk back to the starting point. What is the average speed for the whole trip
A baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant ..
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. What would be the speed of the wave on the longer wire
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