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a) When the block just touches the spring, how much gravitational potential energy has it lost? Give your answer as a positive number.b) After the mass has fully compressed the spring, what is its total loss of gravitational potential energy? Give your answer as a postive number.c) What is the value of the spring constant?
An electromagnetic plane wave at a certain location has an electric field pointed up which is given as a function of time as E = 54 V/m × sin (6x106 Hz × t). how much energy does the foil absorb
The titanic was found in 1985 lying on the bottom of the north ocean.The pressure that the titanic felt at that depth was 400 times atmospheric pressure. what was the depth
A cylinder with a piston contains ½ mole of an ideal gas initially at pressure 4.0 x105 Pa and temperature 300K. Compute the maximum pressure
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
Four identical particles, each with mass m = 10-6 kg and charge Q = 10-6 C, are initially at the four corners of a square with side-length a = 0.01 m. what is the final speed of the released particle once it is very far away
A small steel sphere of mass 0.40kg is attached by a 5.0m long cord to a swivel pin set into the surface of a frictionless table top. What is the magnitude of the centripetal accerleration of the sphere
a block of mass 12.0 kg is connected to a spring on a horizontal frictionless surface. write the expression for the position of the block as the function of time
The bottom of an aluminum pot has an area of 187 cm2 and a thickness of 5.25 mm. How many watts are needed to boil water at this rate
Review Conceptual Example 7 as background for this problem. Determine the magnitude of the momentum of each photon
Sam, whose mass is 74kg , straps on his skis and starts down a 44m -high, 20? frictionless slope. Use work and energy to find Sam's speed at the bottom
A coin placed on a turntable rotating at 40.0 rev/min will stay there if its center is placed no further than 8.5 cm from the axis of rotation, What is the coefficient of friction between the coin and turntable
A lens of focal length 15.0 cm is used to create an image of the Full Moon. What is diameter of the image? The Moon's radius and average distance from Earth are 1.74× 106m and 3.85× 108 m, respectively
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