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If the phase angle for a block-spring system in SHM is π/8 rad and the block’s position is given x = xm cos(ωt + ?),what is the ratio of the kinetic energy to the potential energy at time t = 0?
What is the potential energy in terms of position? What is the speed under the stated conditions? What is the position under the stated conditions? What is the kinetic energy in terms of speed?
What is an average power output of the laser. What is the rms value of the electric field in the beam.
Two tugboats pulls a disabled supertanker. Each tug exerts a constant force of 1.80x106 N, What is the total work they do on the supertanker
A box is lifted with a pry bar , by slipping the bar under the box and lifting up on the bar. what is the size of the force required to lift the box
q1. a book with a mass of 2.0 kg is held in equilibrium on a board with a slope of 60.0 degrees by a static frictional
An inexpensive depth gauge used by scuba divers consists of a small diameter tube wrapped around the rim of a dial. An opening or port at one end allows water to enter when submerged.
A car takes 11 s to go from v = 0 to v = 75 m/s at approximately constant acceleration. If you wish to find the distance travelled using equation d = 1/2 at2, what value should you use for a.
question1a planet of mass 8 times 1024 kg is at location lsaquo minus3 times 1011 6 times 1011 0 rsaquo m. a star of
Suppose that 1.00 mole of an ideal monotomic gas begins at a temperature of 20.0 C. The gas starts at 1.00 atmosphere and triples the volume at constant pressure. What is the new temperature and how much work was done? How much heat was added or s..
A proton beam in an accelerator carries a current of 148 ?A. If the beam is incident on a target, how many protons strike the target in a period of21.0 s
in a womens 100m race accelerating uniformly laura takes 2.00 s and healan 3.00 s to attain their maximum speeds which
A long jumper leaves the ground at an angle of 20.0o to the horizontal and at a speed of 11.0 m/s. What is the takeoff speed of the jumper
The acceleration of a bus is given by ax(t)=?t, where ? = 1.26m/s3 is a constant, If the bus's position at time t1 = 1.12s is 6.01m , what is its position at time t2 = 2.13s
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