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As a spaceship flies past with speed v, you observe that 1.0000s elapses on the ship's clock in the same time that 1.0000min elapses on Earth.
How fast is the ship traveling, relative to the Earth? (Express your answer as a fraction of the speed of light.)
v=___c
A wooden block with mass 1.15kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 28.0?, Calculate the amount of potential energy that was initially stored in the spring
One mol of aluminum at a uniform temp of 0C is placed in thermal contact with a 2nd mol of aluminum which, initially is at a uniform temp of 200C. The pressure in the system is maintained at 1 atm.
What should be the least kinetic energy in electron volts
A ball is thrown horizontally off the top of a building with a height of h=22.5m. What is the horizontal distance the ball travels before it hits the ground
A group of hikers hears an echo 1.50 s after shouting. If the temperature is 24.0°C, how far away is the mountain that reflected the sound wave
Transverse waves travel at 23.3 m/s on a string that is under a tension of 7.00 N. What tension is required for a wave speed of 33.3 m/s in the string
A charge of -250e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere
A small airplane flies with a speed relative to the ground (ground speed) of 219.0 km/h in a direction 20.0 degrees to the east of north. what is the speed of the wind
The ice has a thickness of 4.75 10-4 m, and the windshield has an area of 1.25 m2. The density of ice is 917 kg/m3. Explain how much heat is required to melt the ice?
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
water flowing through a hose at 4.0m/s fills a 600l child's wading pool in 8.0min. What is the diameter in cm of the hose
A nervous physicist worries that the two metal shelves of his wood frame bookcase might obtain a high voltage difference if charged by static electricity, What is the capacitance of the empty shelves if they have area 0.7 × 103 cm2
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