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A magnetic field has a magnitude of 3.6 x 10^-3 T, and an electric field has a magnitude of 1.4 x 10^4 N/C. Both fields point in the same direction. A positive 2.5 μC charge moves at a speed of 1.5 x 10^6 m/s in a direction that is perpendicular to both fields. Determine the magnitude of the net force that acts on the charge
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
A 24 g bullet traveling at 178 m/s is fired into a 0.49 kg wooden block anchored to a 100 N/m spring. How far is the spring compressed to the nearest thousandth of a meter
A window has a glass surface are of 1.6x10^3 cm^2 and a thickness of 3.0 mm. Find the rate of energy transfer by conduction through the window when the temperature of the inside surface of the glass is 70F and the outside temperature is 90F.
They then pull themselves toward each other so that the separation of their centers of mass is only 0.5 meters. What is their new rotation rate in revolutions
Water flows at speed of 5 m/s through a horizontal pipe of diameter 3.4 cm. The gauge pressure P1 of the water in the pipe is 1.5 atm. A short segment of the pipe is constricted to a smaller diameter of 2.3 cm. What is the gauge pressure of the wa..
A small bird's wings can undergo a maximum displacement amplitude of 5.00 cm, what is the oscillation frequency of the wing tips
Supermassive black holes are thought to exist at the center of many galaxies.
a liquid is used to make a mercury-type barometer as described in section pressure in a fluid. the barometer is
q1. a rocket moves with a velocity of 0.818c to the right with respect to a stationary observer a. an observer b moving
In an eclipsing spectroscopic binary system, the maximum radial velocities for the two components are 20 and 5 km/s. The orbit is circular, and the orbital period is 5 years. It takes .3 days from the start of the eclipse to the main minimum, whic..
a student sits atop a platform a distance h above the ground. he throws a large firecracker horizontally with a speed
From that position, we then slowly move the block so that our force does + 4.0 J of work on the spring-block system; the block is then again stationary. What is the block's position?
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