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On a frozen pond, a 10 kilogram sled is given a kick that imparts to it an initial speed of v = 2.0 m/s. The coefficient of kinetic friction between ice and sled is μk= 0.10. Use the work-energy theorem to determine the distance the sled moves before coming to rest.
A 2.65-g copper coin at 21.5°C drops 60.0 m to the ground. (Assume the specific heat of copper is 387 J/kg · °C.) determine the coin's final temperature
You're in an airplane that flies horizontally with speed 1000 km/h (280m/s) when an engine falls off. Neglect air resistance suppose it takes 30s for the engine to hit the ground.
A technician wearing a circular metal band on his wrist moves his hand (from a region where the magnetic field is zero) into a uniform magnetic field of magnitude 2.0 T in a time of 0.30 s. find the magnitude of the average emf induced in the band
Three resistors with values 1.0 , 2.2 , and 5.5 , respectively, are connected in parallel in a circuit with a 5.0 V battery. What is the total equivalent resistance
A traveler on a boat moving 1.70 m/s on a still lake walks up a flight of stairs at a speed of .60m/s. Find the vector velocity of the traveler relative to the water
A 1,500kg satellite is placed in an orbit 8,000km above the surface of the Earth. a. What is the gravitational acceleration of the Earth at that altitude? b. What is the speed of the satellite? c. How long does it take the satellite to go around the ..
A red laser from the physics lab is marked as producing 632.8-nm light. When light from this laser falls on two closely spaced slits, What is the wavelength of light produced by the pointer
1. if the total electric current reaching the earths surface is nearly constatnt at 1000 a approximately how much
How many turns of wire would be required to make a 130-mH inductor out of a 29.0-cm-long air-filled solenoid with a diameter of 5.1cm ?
When a 24.0-? resistor is connected across a 12.0-V battery, a current of 482 mA flows. What is the resulting terminal voltage of the battery
A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 6.50 rad/s about a fixed vertical axis through its center. A 0.250-kg piece of putty is dropped vertically onto the cylinder at a point 0.900 m from the ce..
the distance between the earth and moon (r = 3.84 Ã- 108 m) and Mmoon = 7.36 Ã- 1022kg and Mearth = 5.98 Ã- 1024kg. Calculate the gravitational potential energy of the moon
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