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Q1. After being accelerated to a speed of 1.43×105, the particle enters a uniform magnetic field of strength 1.00 and travels in a circle of radius 33.0 (determined by observing where it hits the screen). The results of this experiment allow one to find.
Find out the ratio for this particle.
Q2. Estimate the thickness of lead shielding needed to reduce the exposure rate 2.5 m from a 5.92x10^11 Bq point source of Cs-137 to 1.0 mR/hr.
A boy flies a kite with the string at a 30 degree angle to the horizontal. The tension in the string is 4.5N. How much work does the string do on the boy
A 0.75 mm diameter copper wire carries a small current of 3.5 µA. What is the drift speed of the electrons in the wire
A 1.7 -V. dry cell can be tested by connecting it to a low-resistance ammeter; it should be able to supply at least 30 A. What is the internal resistance (in ohms) of the cell in this case
Coherent light with wavelength 591nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of the central b..
A child is sitting on the outer edge of a merry-go-round that is 18m in diameter. if the merry-go-round makes 5 rev/min, what is the velocity of the child in m/s
A flight attendant pulls hero 70 N flight bag a distance of 253 m along a level airport floor at a constant velocity. The force she exerts is 40N at an angle of 52.0 degrees above the horizontal.
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
Electrons are accelerated through a voltage difference of 265 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons
A concave shaving mirror has a radius of curvature of 40.1 cm. It is positioned so that the (upright) image of a man's face is 2.7 times the size of his face. How far is the mirror from the man's face?
A transmitter is operating at 4.00 kW of power. what is the average intensity of the signal 8.00 km from the transmitter
You calculated a value of 0.49 s ± 0.04 s for the time constant from your graph. If you used a 1M?, what is the equivalent capacitance of your circuit
A stream of protons and electrons are shot horizontally (from the left edge of the page to the right) with a speed of 1.2 x 10^6 m/s, What is the radius of the curvature and the direction for the curvature that each of these particles undergoes
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