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A 50,000 kg locomotive is traveling at 60.0 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop?
You want to examine the hairy details of your favorite pet caterpillar, using a lens of focal length 9.1 cm that you just happen to have around. what angular magnification do you achieve
A converging lens (f = 24.6 cm) is used to project an image of an object onto a screen. Find the two object distances
When two carts having the same mass and the same speed collide and bounce off of each other elastically, what is the final total momentum of the carts
A weight of 200 N is hung from a spring with a spring constant of 2500 N/m and lowered slowly. How much will the spring stretch
A football spends a total of 5 seconds in the air. It reaches a peak height of 30 meters. How long does it take to reach its peak height? The football has the range of 90 yards. What is its horizontal velocity.
A 10.0-kg object experiences a drag force due to air resistance. At what velocity (magnitude and direction) is the net force on the object twice its weight
A resistor of 370 is connected in series with a capacitor of 52.0 µF capacitance. The phase shift between the current and voltage at f = 10.3 Hz is
Estimate the force on a 145-gram baseball if it hits the bat at 50 miles per hour and stays in contact with the bat for 0.1 second
A violin string 30.00 cm long and fixed at both ends oscillates in its n = 1 mode. The speed of waves on the string is 280 m/s, What is the wavelength of the emitted sound wave
What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron.
A rescue helicopter lifts a 85 kg person straight up by means of a cable. The person has an upward acceleration of 0.70 m/s2, How much work is done by the person's weight
A small rock is thrown vertically upward with a speed of 18.0 m/s from the edge of the roof of a 40.0 m tall building. What is the speed of the rock just before it hits the street
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