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A vertical spring with a spring constant of 470N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.8cm in bringing the block to a momentary halt. Assuming air resistance is negligible, from what height (in cm) above the compressed spring was the block dropped? Answer in cm
The specific heat of granite is 0.80 kJ/kg x C. If 106 MJ of heat are added to a 100-kg granite statue of James Prescott Joule that is originally at 18 degrees C
The man completely exhales and jumps into the deep end of a pool with a depth of 9 feet. Calculate the buoyant force of the water acting on the man with his breath completely exhaled
Scientists want to place a 4400.0 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2659.0 m/s in a perfectly circular orbit. Here is some information that may help solve this problem:
Emilie's potter's wheel rotates with a constant 2.00rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.60s interval
The highest barrier that a projectile can clear is 14.6 m, when the projectile is launched at an angle of 17.0° above the horizontal. What is the projectile's launch speed
An ion accelerated through a potential difference of 240.0 V has its potential energy decreased by potential energy of 7.68*10^-17 J
A 9.30 kg monkey is hanging by one arm from a branch and swinging on a vertical circle. Calculate the magnitude of the centripetal force acting on the monkey
A person walks 21° north of east for 3.30km. How far would another person walk due north and due east to arrive at the identical location.
Where Is The Net Force Zero? Three point charges lie along the x-axis. The positive charge q1 = 15.0 ?C is at the x = 2.00 m, What is the x coordinates of q3
Two identical rods each of length L and charge Q are perpendicular to each other and separated by a distance D, Find the force between them
A car drives north at 48 for 10 and then turns east and goes 5 at 62 . Finally, it goes southwest at 24 for 6. Determine the cars displacement.
The Earth can be approximated as a sphere of uniform density, rotating on its axis once a day. What is the moment of inertia of the Earth
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