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1) An object initially at rest reaches a velocity of 30m/s in 6 seconds, how much work is done during this time interval?
2) A roller coaster car with a mass of 1000kg starts at ground level and reaches a maximum height of 128m. what is the change in potential energy for the car? I f all the potential energy is turned into kinetic energy when it reaches the bottom of the hill, how fast will the car be traveling?
3) If the roller coaster in the previous question had a loop at the bottom of the drop what is the maximum radius allowed??
4) A 2.0 kg block is pushed up against a spring whose force constant is 700N/m, compressing it 7.5cm. when the block is released it moves horizontally across a friction less table until it launches off the edge 1.0m above the ground. Find the horizontal distance the block will cover before it hits the ground?
5) The Tesla roadster goes from 0 to 60mph in 3.9 seconds a)how much work is done by the engine? B) what is the average acceleration?
A 25.0microF capacitor is charged to a potential difference of 800V. The terminals of the charged capacitor are then connected to those of an uncharged 8.00microF capacitor. Compute the original charge of the system
An insulated piston cylinder device contains 2 L of Saturated liquid water at a constant pressure of 150 KPa. Calculate the energy destroyed darning this process
A fountain sends a stream of water straight up into the air to a maximum height of 4.22 m. determine how many gallons per minute are being used by the fountain
Long jumper leaves the ground at 45 degree angle and lands 8 meters away. What is her initial velocity
An object is 50 centimeter from a concave mirror of radius of curvature of magnitude 60 centimeter. Evaluate how far is the image from the mirror
A yo-yo has a rotational inertia of 910 g·cm2 and a mass of 120 g. Its axle radius is 3.8 mm and its string is 100 cm long. The yo-yo is thrown so that its its initial speed down the string is 1.1 m/s.
A stone held just beneath the surface of a swimming pool isreleased and sinks to the bottom at a constant speed of 0.48 m/s.What is the apparent speed of the stone, as viewed from directlyabove by an observer who is in air?
The following two lists give the diameters and sound frequencies for three loudspeakers. find the common diffraction angle
a force of 63.1 n is required to start a 7.0-kg box moving across a horizontal concrete floor. what is the coefficient
You find an unlabeled box of fine needles, and want to determine how thick they are. A standard ruler won\'t do the job, since all you can tell is that each needle is less than a millimeter thick. What is the diameter of the needle
If a car is travelling at a speed equal to a moving state train and moves east in a direction in the opposite side that contains railings that are broken, how long will the car reach a maximum speed.
Uniform rate of acceleration
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