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Astronaut Spud Nick is space-travelling from planet X to planet Y at a speed of 0.59 c. When he is precisely halfway between the planets, a distance of 1 light-hour from each in the planets' frame, nuclear devices are detonated. The explosions are simultaneous in the frame of the planets. What is the difference in time of arrival of the flashes from the explosions as observed by Spud?
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = %u221228.0 cm). How far is the object from the converging lens
A 55 kg person riding a bike puts all her weight on each pedal when climbing on a hill. How could she exert more torque
A cart of mass 1.8kg rolls without friction on a track. At point A the cart is moving at 6.0m/s. What work was done by friction
Find out the change in entropy of the system
Light of wavelength 700 nm falls on a 0.38 mm wide slit and forms a diffraction pattern on a screen 1.3 m away. Find the width of the central maximum
The meteoroid that creates a meteor has a typical mass of about 1 g (and burns up about 100 km above the Earth's surface). Estimate the amount of mass of meteoroids that enters the Earth's atmosphere per year
Mary needs to row her boat across a 200 m-wide river that is flowing to the east at a speed of 1.1 m/s. Mary can row with a speed of 2.4 m/s. What is her speed with respect to the shore
In the standing wave experiment, the length of the string is 1.400 m. When a mass of 80 grams is hung, the 7th harmonic is obtained. find the frequency of the vibrator
A male turkey is moving towards his mate at a speed of 20.0 m/s while gobblng at a frequency of 1800 Hz. what frequency of sound does the stationary hen turkey hear
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train, What is the current in the primary coil?
A speedboat starts from rest and accelerates at +2.01 m/s2 for 6.95 s. At the end of this time, the boat continues for the additional 5.70 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.20 s.
If the mass of both weights is 150 gm, the first mass is located 30 north of east, the second mass is located 30 south of east, and the transducer sensitivity is 0.5 volts/Newton, how large a voltage do you expect to measure? Suppose the transducer h..
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