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A cardinal (Richmondena cardinalis) of mass 3.80×10^?2 kg and a baseball of mass 0.145g have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
A laser beam of power 4.60 W and diameter 2.6 mm is directed upward on the circular face ( diameter of the face
A wave in which the disturbance is perpendicular to the direction of travel of the wave is a... Two waves of equal amplitudes traveling in opposite directions pass through each other. After they have passed through each other, their amplitudes have..
A fire helicopter carries a 649 kg bucket of water at the end of a 18.7 m long cable. Flying back from a fire at a constant speed of 44.2 m/s, Determine the force of air resistance on the bucket
The ems of an AC circuit has an rms value of 120V. What is the maximum positive emf
In a Compton scattering experiment, an x-ray photon scatters through an angle of 18.0° from a free electron that is initially at rest. Calculate the angle through which the electron scatters
What is the least coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
if a 2.5 kg ball puts 118 joules of energy in a spring with a 614 n/m constant, how far is the spring compressed.
(a) Find the components of the net electric field at the origin. Ex = , Ey = (b) Find the magnitude and direction of the net electric field at the origin. |E| = at direction (from +x axis).
A person lies flat on the sidewalk with her ear to the ground. A limb falls and two distinct sounds are heard, one from the air and the other from the concrete. How far away did the impact occur
Assume all angles to be exact. A certain crystal gives a deflection angle of 25 degree for the first-order maximum of monochromatic X-rays with a frequency of 4.5×10^17
q1. a small ball of mass 62 g is suspended from a string of length 37 cm and whirled in a circle lying in the
You use a sequence of ideal polarizing filters, each with its axis making the same angle with the axis of the previous filter, to rotate the plane of polarization of a polarized light beam by a total of 45.0°. You wish to have an intensity reducti..
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