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A cubical piece of heat-shield-tile from the space shuttle measures 0.12 m on a side and has a thermal conductivity of 0.065 J/(s·m·C°). The outer surface of the tile is heated to a temperature of 1110°C, while the inner surface is maintained at a temperature of 18°C. (a) How much heat flows from the outer to the inner surface of the tile in 5.0 minutes? (b) If this amount of heat were transferred to 3.8 liters (3.8 kg) of liquid water, by how many Celsius degrees would the temperature of the water rise?
A 4.60-kg ball is dropped from a height of 10.0m above one end of a uniform bar that pivots at its center. How high will the other ball go after the collision
A dog sits 1.53-m from the center of a merry-go-round with an angular speed of 1.65 rad/s. If the magnitude of the force that maintains the dog's circular motion is 38-N, what is the dog's mass.
How much heat flows from 1.00 kg of water at 38.0°C when it is placed in contact with 1.00 kg of 20°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
An unlikely weapon was once proposed which had all of the people in China to jump up and down simultaneously. Calculate what the speed of the Earth and the people would be after the collision
Mattwe pulls his little sister sarah in a sled on an icy surface, with a force of 60 N at an angle of 37 ° upward from the horizontal. If he pulls her a distance of 12m, then determine the work done by matthew?
Two rocks collide in outer space. Before the collision, one rock had mass 15 kg and velocity ‹ 4300, ?2700, 2350 › m/s. what is the velocity of the other rock
A ring of radius R has uniform charge per unit lenght ? C/m (?>0), and z is the dince along its axis. Explain why the electric field must be zero at the center of the ring
A cannon shoots a ball with an initial velocity of 152-m/s and a launch angle of 62°. The gravitational acceleration is 9.80 m/s2. Assuming no air resistance, how long would the cannonball stay in the air.
A 52.0 kg ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.0 turns each second. The distance from one hand to the other is 1.50 m. Biometric measurements indicate that each hand characterist..
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.13 m2, what is the percentage lost by the window
The rotor in a certain electric motor is a flat, rectangular coil with 84 turns of wire and dimensions 2.45 cm by 4.04 cm. The rotor rotates in a uniform magnetic field of 0.800 T. Find the peak power output of the motor
A horizontal 2-m-diameter gate is located in the bottom of a water tank (5m depth). Determine the force F required to just open the gate
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