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A 670-kg meteorite happens to be composed of aluminum. When it is far from the Earth, its temperature is - 15°C and it moves with a speed of 14.0 km/s relative to the Earth. As it crashes into the planet, assume that the resulting additional internal energy is shared equally between the meteor and the planet, and that all of the material of the meteor rises momentarily to the same final temperature. Find this temperature. Assume that the specific heat of liquid and of gaseous aluminum is 1170 J/kg· °C.
From that position, we then slowly move the block so that our force does + 4.0 J of work on the spring-block system; the block is then again stationary. What is the block's position?
If the temperature is the same at the surface of the lake and at a depth of 20.0m below the surface , what is the height of the cylinder of air in the bucket when the bucket is at a depth of 20.0m below the surface of the lake
Calculate the angular momentum of a solid uniform sphere with a radius of 0.130m and a mass of 14.0kg if it is rotating at 6.05rad/s about an axis through its center
A ball rolls horizontally off the edge of a tabletop that is 1.20 m high. It strikes the floor at a point 1.63 m horizontally away from the table edge. What was its speed at the instant it left the table
an electron moves on a path parallel to the direction of a uniform electric field of strength 5 nc. how much work is
A particle with mass 1.81 x 10^-3 kg and a charge of 1.22 x 10^-8 C has an initial velocity of vector v = (3.00 x 10^4 m/s)hj^. If the particle enters a magnetic field give by vector B = (1 .63T)i^ + (0.980T)j^, determine the particle's accelerati..
An air-hockey pucks floats across the table and bumps into a second puck, initially at rest. The first puck - mass 0.0250 kg - is moving initially due east at 5.50 m/s. Find the speeds of both pucks after the bump
The rabbit runs at its maximum speed of 8.00 m/s toward the goal for 0.800 km and then stops to tease the tortoise. How close to the goal can the rabbit let the tortoise approach before resuming the race?
A 4.40-g lead bullet at 32.0°C is fired at a speed of 230 m/s into a large block of ice at 0°C, What quantity of ice melts
The earth has a net electric charge that causes a field at points near its surface equal to 150N/C and directed in toward the center of the earth. a) What magnitude and sign of charge would a 60 kg human have to acquire to overcome his or her weig..
A car travels 20km at an average speed of 80km/hr and then stops for 15 mins to get fuel. It then continues on the same direction for another 20 km at an average speed of 40km/hr. What is the average acceleration of the 40km trip.
Following the procedure in the video, create three traces of the pendulum motion of the cup. Compare the three traces for amplitude, wavelength, and frequency.
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