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Two point charges, q1 and q2 attract each other with a force of.012N. q1 is positive and has a charge of .4uC and q2 is negative and has a charge of -.3 uC. Find a) the magnitude of the electric field produced by q1 at the location of q2, b)the direction of this field and c) the distance between the two charges.
50j of work are done per cycle on a refrigerator with a coefficient of performance of 5.0. Part A: How much heat is extracted from the cold reservoir per cycle
A siren at rest has a frequency f0. Standing at a crosswalk, a student hears a frequency f' from the siren in an approaching police car. find the speed of the car
A veterans' group wishes to honor General MacArthur by putting a statue of him on a pedestal of Douglas fir. What is the maximum mass of the statue before the pedestal suffers a compressive failure
A proton is projected in the positive x direction into a region of uniform electric field Earrowbold = (-5.40 multiplied by 105) i hat bold N/C at t = 0. Determine the acceleration of the proton
Given a uniform ring of charge, with charge q=+30E-6 C and radius 0.2 m. Find the magnitude of linear charge density for the ring
A monatomic ideal gas is held in a thermally insulated container with a volume of 0.1000 m^{3}. The pressure of the gas is 110 kPa, and its temperature is 327 K.
What is the surface temperature of Betelgeuse, a red giant star in the constellation of Orion, which radiates with a peak wavelength of about 970 nm?
A brand of earplugs reduces the sound intensity level by 28dB. By what factor do these earplugs reduce the acoustic intensity
suppose a sample of 1 mole of a diatomic ideal gas at 1 atm and 20 degrees C is ADIABATICALLY expanded to 5 times its original volume. how much work did the gas do on the environment
After a golf ball is hit it takes off with an initial speed of 26.2 m/s and at an angle of 39.5° with respect to the horizontal. The golf field is flat and horizontal.
a 0.107-kg ball is dropped from a height of 1.03 m and lands on a light approximately massless cup mounted on top of a
A block of mass 6 kg, which has an initial speed of 3 m/s at time t = 0, slides on a horizontal surface. obtain the magnitude of the acceleration of the block
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