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The momentum and the kinetic energy of particle Ais six timesand seven times the momentum andthe kinetic energy of particle B, respectively. What is the ratioof the mass of particle A to that of particle B?
a store sign of mass 4.21 kg is hung by two wires that each make an angle of ? 42.3deg with the ceiling.what is the
Determine the circumference of a path that follows a great arc at a latitude of 45 degrees around a spherical planet that has a radius R of 5000
What is the average translational kinetic energy of nitrogen molecules at 1400 K
A line in the x-ray spectrum of gold has a wavelength of 18.5 pm (=18.5 x 10^-7 m), What is the energy of the lower stationary state
A glass window 0.35cm thick measures 84cm by 84cm. how much heat flows through this window per minute if the inside and outside temperture difference differ by 15 degree Celceus
Why does air circulate from a point with less pressure towards one with more pressure? (We have a tunnel, and on one side the wind blows faster than at the other)
A concave shaving mirror has a radius of curvature of27.0 cm. It is positioned so that the(upright) image of a man's face is 3.50 times the size of the face. How far is the mirror from the face
A 798 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius. Find the period of its revolution
A foul ball is hit straight up into the air with a speed of about 25 m/s. How long is it in the air
What is the direction of the electric field at point P and determine the linear charge density. Put your answer in terms of q, L, a, and physical constants.
Two steel guitar strings have the same length. String A has a diameter of 0.59 and is under 410.0 of tension. String B has a diameter of 1.5 and is under a tension of 800.0 . Find the ratio of the wave speeds, VA/ VB, in these two strings
A girl floats in a lake with 97 percent of her body beneaththe water. What is her mass density
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