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A string fixed at both ends is 8.98 m long and has a mass of 0.125 kg. It is subjected to a tension of 92.0 N and set oscillating.
(a) What is the speed of the waves on the string?
(b) What is the longest possible wavelength for a standing wave?
(c) Give the frequency of that wave.
An electron acquires 5.95×10?16J of kinetic energy when it is accelerated by an electric field from plate A to plate B
An AC voltage source, with a peak output of 200V is connected to a 50 ohm resistor. What is the rate of energy dissipated due to heat in the resistor
Four identical metallic objects carry the following charges: +5.4 µC, +5.4 µC, -7.0 µC, and -1.6 µC. What is the final charge on each object
A space vehicle is orbiting Earth in the circular orbit with a radius of 10,300,000 m. What is the minimum increase in speed that is essential for the vehicle to escape Earth's gravitational field? The mass of Earth is 5.97 x 10^24 kg and G = 6.67 X ..
The velocity-time graph of part of a cyclist's trip consists of a straight line between v = 18.0 m/s at t = 13.0 s and v = 0 at t = 25.0 s
A jet with mass m = 1.3 × 105 kg jet accelerates down the runway for takeoff at 2.4 m/s2, What is the net horizontal force on the airplane
A child on a freely rotating merry-go-round moves from near the center to the edge. Will the rotational velocity of the merry-go-round increase, decrease, or not change at all? Explain.
A truck covers 40.01 m in 7.615 s while smoothly slowing down to final speed 1.40 m/s. What is the original speed and what is the acceleration.
Suppose that 0.10mol of argon gas is admitted to an evacuated 50cm3 container at 20° C. The gas then undergoes isobaric heating to the temperature of 300°C. What is the final pressure of gas? What is the final volume.
A high electron mobility transistor (HEMT) controls large currents by applying a small voltage to a thin sheet of electrons. What is the density of electrons per m3 in the sheet? Do not enter unit
Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block and the wall is 0.50
The pressure of air in your house can stay constant during the day if the temperature rises. Determine the number of moles of air that leave the house during the day time
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