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How long would it take a car to return to its starting place if it traveled 180 m/s average speed of 90 km/hr and returned to its starting place along the same straightline path? (Neglect the time that the car takes to turn around.)
In a single-slit diffraction pattern on a flat screen, thecentral bright fringe is 1.6 cm wide when the slit width is 3.7 x10-5 m. What is the width of the second slit
Water is pumped steadily out of a flooded basement at a speed of 4.6 m/s through a uniform hose of radius 1.4 cm. What is the power of the pump
A 20.0 kg wood ball hangs from a 2.0-m-long wire. The maximum tension the wire can withstand without breaking is 400.0 N. What is the greatest speed the wood ball can have
In a supermarket, you place a 22.3 N (around 5 lb) bag of oranges on a scale, and the scale starts to oscillate at 2.7 Hz. What is the force constant (spring constant) of the spring of the scale
You have an organ pipe that resonates at frequencies of 800, 1120, and 1440 Hz but nothing between these. What is the fundamental frequency for this pipe
A spacecraft is in circular orbit about the moon, 1.22 x105m above its surface. The speed of the spacecraft is1620 m/s, and the radius of the moon is 1.74 x 106 m. Ifthe moon were a smooth reflective sphere,
A 10cm long thin glass rod is uniformly charged to +50nC. A small plastic bead, charged to -5.3nC,is 4.4cm from the center of the rod
You are using a magnifying glass held against your eye to study an insect. The distance between the insect and your eye/magnifying glass is 2.5cm. What is the angular magnification of the magnifying glass?
Seismic p-waves travel at abou 6 km/s and s-waves at 4 km/s. how far away was the earthquake that produced them
An engine absorbs 1.69 kJ from a hot reservoir at 277 °C and expels 1.24 kJ to a cold reservoir at 27 °C in each cycle. What is the power output of the engine if each cycle lasts 0.298 s
A 6110 kg space probe moving nose-first toward Jupiter at 150 m/s relative to the Sun fires its rocket engine, What is the final velocity of the probe
A cannon fires a 2-kg exploding projectile across a level field on a windless day. How far away from the cannon does the second piece land
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