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Calculate the earth’s radiative temperature (TE) for an albedo value of 0.27, 0.30 and 0.33. Then estimate the surface temperature using a reasonable estimate of the temperature increase due to the greenhouse effect. Summarize the scientifically valid reasons that the albedo of the planet might increase or decrease.
What is the Professors initial velocity. He is pushed a distance 3.00 m along the incline by a group of students who together exert a constant horizontal force of 595 N. The professor's speed at the bottom of ramp is 1.70 m/s.
Find the resultant force of a tank that is entirely filled with an incompressible fluid and has a piston at end. Side going into take F=100N
The frequency of a mass attached to a spring is 4Hz. At time t = 0, the mass has an initial displacement of 0.200m, When will the mass first reach a turning point
q1. an electron with a speed of 3.28 times 108 cms in the positive direction of an x axis enters an electric field of
On a highly polished, essentially frictionless lunch counter, How much mechanical energy dissipates in the collision
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
A 23 kg box slides 4.0 m down the frictionless ramp shown that is raised 30 degress from the ground , What is the maximum compression of the spring
Find out the velocity with which he strikes the water. (Hint: When the diver reaches the water, his displacement is y = -3 m (measured from the board), assuming that the downward direction is chosen as the negative direction.)
define the dielectric constant of the dielectric.
A bead with a mass of 0.083 g and a charge of 15 nC is free to slide on a vertical rod. At the base of the rod is a fixed 10nC charge. In stability, at what height above the fixed charge does the bead rest.
A student is standing on a ladder as shown in the figure to the right. Each leg of the ladder is 2.7 m long and is hidged at point C. What is the tension in the tierod
A place kicker should kick a football from a point 35m (about 38.0 yd) from the goal, and the ball should clear the crossbar, which is 3.05 m high. When kicked, ball leaves the ground with a speed of 21.0 m/s at an angle of 55° to the horizontal.
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