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On average, Venus is 0.72 AU from the sun and its surface temperature is 735 K. Calculate how much of this is due to Venus's greenhouse effect? (On average, Venus reflects 75% of incoming light back into space.)
Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, how much work does the tension force do on Magnus
you illuminate a slit of width 0.0575 mm with light of wavelength 715 nm and observe the resulting diffraction pattern
An 81 kg running back moving at 4.0 m/s makes a perfectly inelastic collision with a 105 kg linebacker who is initially at rest. What is the speed of the players just after their collision
The 2.45kg physics book shown is connected by a string to a 537.0g coffee cup. What is the acceleration of the book if the slope is inclined at 22.5deg
A space station, in the form of a wheel 133 m in diameter, rotates to provide an "artificial gravity" of 2.20 m/s2 for persons who walk around on the inner wall of the outer rim. Find the rate of the wheel's rotation in revolutions per minute that wi..
A basketball player jumps straigh up to launch a long jump shot at an angle of 45 degrees with the horizontal and a speed of 15 m/s. How far from his original position does he land
A 4000 kg lunar lander is in orbit 50 km above the surface of the moon. How much work must the thrusters do
Suppose the space shuttle is in orbit 460km from the Earth's surface, and circles the Earth about once every 93.80 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, gravitational accelera..
two spaceships pass each other travelling in opposite directions. the speed of ship b as measured by a passenger in
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.230 T, find the speed of the electron and the radius of the circular path
q1. after being accelerated to a speed of 1.7times10 5 ms the particle enters a uniform magnetic field of strength 1.00
A variable-speed drill, initially turning at 250 rpm, speeds up to 1300 rpm in a time interval of 0.1 s. What is its average rotational acceleration
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