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The velocity v of waves on a vibrating string depends on the tension T in the string and the mass per unit length λ of the string. Derive an expression for v by using the dimensional analysis method
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 9.6 m and, in starting, rotates according to ? = 0.34t^2, find the magnitudes of the astronaut's angular velocity
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
Two slits of equal width are a distance 0.57 mm apart and are illuminated by coherent, mono-chromatic light. compute the widths of the slits
If the parachutist comes to rest with constant acceleration over a distance of 0.610 m, what force does the ground exerts on her.
A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. what average force did the water exert on her
The planet Jupiter revolves around the Sun in a period of about 12 years (3.79 × 108 seconds). What is its mean distance from the center of the Sun? The mass of the Sun is 1.99 × 1030 kilograms. A. 1.1 × 10^11 meters B. 1.5 × 10^11 meters C. 2.3 ×..
A 0.1A current is charging a capacitor that has square plates 5cm on each side. Find the time rate of change of electric flux between the plates
A golf ball of mass 0.047 kg is hit off the tee at a speed of 40.2 m/s. The golf club was in contact with the ball for 3.29E-3 s. Find the impulse imparted to the golf ball
A ferris wheel at a local carnival has a radius of 20.0 m and it completes one revolution in 9.60 seconds. What is the speed of a point on the edge of the wheel
A skin diver is 1.8 m below the surface of a lake. A bird flies overhead 7.6 m above the surface of the lake. how far above the diver does it appear to be
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -89\mu C. How many excess electrons does she get
A 150 ohm resistor, a 30 mH inductor and a 2 uF capacitor are connected in series with a 120 V rms source at 1500 Hz. What is the impedance of this circuit
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