A 960.0 gram iron meteor impacts the earth at a speed of 1268 m/s. If its...
A 960.0 gram iron meteor impacts the earth at a speed of 1268 m/s. If its kinetic energy is entirely converted to heat of the meteorite what is the change in kinetic energy assuming it started from rest.
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A 960.0 gram iron meteor impacts the earth at a speed of 1268
m/s. If its...
6) (12 pts.) A meteor of mass m is approaching earth as shown on the sketch....
6) (12 pts.) A meteor of mass m is approaching earth as shown on the sketch. The distance h on the sketch below is called the impact parameter. The radius of the earth is RE , and the mass of the earth is mE. Suppose the meteor has an initial speed of v0 and that the meteor started very far away (infinitely far) from the earth. Suppose the meteor just grazes the earth. You may ignore all other gravitational forces...
A meteor from outer space strikes the Earth. Ignoring gravitational effects from other bodies in the...
A meteor from outer space strikes the Earth. Ignoring gravitational effects from other bodies in the solar system, and assuming that the meteor is initially at rest at a great distance from the Earth, what is the impact speed of the meteor?
A satellite of mass m= 100kg is orbiting the Earth in a Low Earth Orbit at...
A satellite of mass m= 100kg is orbiting the Earth in a Low Earth Orbit at a velocity of v= 12,000m/s. It is simultaneously hit by two oncoming meteors. The first meteor of mass m1 = 10kg impacts at an angle of θ1 = 30° at a speed of v1 = 1000m/s. The second meteor of mass m2 = 8kg impacts at an angle of θ2 = 10° at a speed of v2 = 1500m/s. If both meteors become embedded...
A 715-kg two-stage rocket is traveling at a speed of 6.80×103 m/s away from Earth when...
A 715-kg two-stage rocket is traveling at a speed of 6.80×103 m/s away from Earth when a predesigned explosion separates the rocket into two sections of equal mass that then move with a speed of 2.50×103 m/s relative to each other along the original line of motion. a.) What is the speed of each section (relative to Earth) after the explosion? Express your answers using three significant figures separated by a comma. b.) How much energy was supplied by the...
BoNUs: Geodynamo The mass of the earth is M = 6.0 , 1024 kg and its...
BoNUs: Geodynamo The mass of the earth is M = 6.0 , 1024 kg and its radius is R = 6.4 . 106 m. (a) Estimate the rotational kinetic energy of the earth, in joules (J) converted to electrical power, how long could it supply energy to the human race, assuming our power consumption netic remained constant? Report your answer in seconds and in years
3. A lead bullet (m=0.050kg & V= 5.00x106m) at 20.0°C impacts a block, made of an...
3. A lead bullet (m=0.050kg & V= 5.00x106m) at 20.0°C impacts a block, made of an ideal thermal insulator, and comes to rest at its center. After impact, the temperature of the bullet is 327.0°C. The specific heat capacity of lead is 128J/kg-K. a. Determine the heat absorbed by the bullet during its temperature change. b. What is the final volume of the bullet just after it comes to rest? c. How fast was the bullet traveling prior to hitting...
A satellite in a circular orbit around the earth with a radius 1.015 times the mean...
A satellite in a circular orbit around the earth with a radius 1.015 times the mean radius of the earth is hit by an incoming meteorite. A large fragment (m = 89.0 kg) is ejected in the backwards direction so that it is stationary with respect to the earth and falls directly to the ground. Its speed just before it hits the ground is 359.0 m/s. Find the total work done by gravity on the satellite fragment. RE 6.37·103 km;...
A 25.0-gram bullet enters a 2.25-kg watermelon with a speed of 220 m/s and exits the...
A 25.0-gram bullet enters a 2.25-kg watermelon with a speed of 220 m/s and exits the opposite side with a speed of 110 m/s. If the melon was originally at rest, then what speed will it have as the bullet leaves its opposite side?
A 90.0-gram lead bullet hits a steel plate, both initially at 24 °C. The bullet melts...
A 90.0-gram lead bullet hits a steel plate, both initially at 24 °C. The bullet melts and splatters on impact. Assuming that the bullet receives 74% of its kinetic energy as heat energy, at what minimum speed must it be traveling to melt on impact? (The melting temperature of Lead is 327°C) _____ m/s
A meteoroid of mass = 595 kg has a speed of 79.0 m/s when 800 km...
A meteoroid of mass = 595 kg has a speed of 79.0 m/s when 800 km
above the Earth. It is falling vertically (ignore air resistance)
and strikes a bed of sand in which it is brought to rest in 3.61
m.
(a) How much work does the force of gravity do on the meteoroid
on the way to the surface?
???? GJ
(b) What is the speed of the meteoroid just before striking the
sand?
???? m/s
(c) How...
BoNUs: Geodynamo The mass of the earth is M = 6.0 , 1024 kg and its radius is R = 6.4 . 106 m. (a) Estimate the rotational kinetic energy of the earth, in joules (J) converted to electrical power, how long could it supply energy to the human race, assuming our power consumption netic remained constant? Report your answer in seconds and in years
3. A lead bullet (m=0.050kg & V= 5.00x106m) at 20.0°C impacts a block, made of an ideal thermal insulator, and comes to rest at its center. After impact, the temperature of the bullet is 327.0°C. The specific heat capacity of lead is 128J/kg-K. a. Determine the heat absorbed by the bullet during its temperature change. b. What is the final volume of the bullet just after it comes to rest? c. How fast was the bullet traveling prior to hitting...
A meteoroid of mass = 595 kg has a speed of 79.0 m/s when 800 km
above the Earth. It is falling vertically (ignore air resistance)
and strikes a bed of sand in which it is brought to rest in 3.61
m.
(a) How much work does the force of gravity do on the meteoroid
on the way to the surface?
???? GJ
(b) What is the speed of the meteoroid just before striking the
sand?
???? m/s
(c) How...
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