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The equation for the frequency f of oscillation of simple pendulum is f = 1/2p *vg/L
Where L is the length of the pendulum string and g is the acceleration due to gravity. Frequency is commonly expressed in units of hertz (hz). What is a hertz unit in terms of SI base units?
A 106 watt motor is used to lift a 114 kg container to a height of 6 m. How much time does it take to lift the container with the motor
Submarines control their buoyancy using ballast tanks. To sink the tanks can be flooded with water and to rise compressed air can be fed into the tanks to expel the water, lowering the density of the sub.
If a material increases it's length from 160m to to 163.20m when it's temperature is raised 160 degrees C, determine the coefficient of linear expansion
A child rides a pony on a circular track whose radius is 4.0m, Find the distance after a complete circuit of the track
A diver tucks her body in midflight, decreasing her moment of inertia by a factor of two. By what factor does her angular speed change
A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520 nm. A very wide viewing screen is 2.1 m behind the grating. What is the distance between the two m= 1 fringes? Use two significant figures
Estimate the thickness of steel (density 8 g/cm3) needed to stop a proton of momentum 2 GeV/c. Then, for the same thickness of steel, calculate the energy loss of a 2 GeV/c gamma ray.
The time constant of an RL circuit with L = 25 mH is five times the time constant of an RC circuit with C = 40 µF. What is the time constant of the RL circuit
The Youngs Modulus for copper is 130 Gpa. What is the strain in the the copper wire under a stress of 120Mpa
What is the resulting compressional force on the Earth. what is the acceleration of a rock at top of its trajectory when it has been thrown straight upward.
A force of 15N is applied at an angle of 30 degrees to the horizontal on a 0.750kg block at rest on a frictionless surface. what is the magnitude of the normal force
Coherent sources A and B emit electromagnetic waves with wavelength 2.00 \rm cm. What is the phase difference at P between these two waves
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