Astronaut and the satellite
An 95 kg spacewalking astronaut pushes off a 645 kg satellite, exerting a 85 N force for the 0.440 s it takes him to straighten his arms. How far apart are the astronaut and the satellite after 1.20 minute?
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A 145 g baseball, moving along the x axis with speed 30.0 m/s, strikes a fence at a 45 degree angle and rebounds along the y-axis with unchanged speed. Give its change in momentum using unit vector notation.
A plastic sphere floats in water with 65.0% of its volume submerged. This same sphere floats in glycerin with 51.8% of its volume submerged. (a) Determine the density of the glycerin.
A bucket filled with water has a mass of 75 kg and is attached to a rope that is wound around a 0.075 m radius cylinder. A crank with a turning radius of 0.25 m is attached to the end of the cylinder. What is the minimum force directed perpendicul
In a few sectences explain how might the transformation or DNA integration process have caused this outcome?
A 20 g rifle bullet traveling 240 m/s buries itself in a 3.5 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
A particle moves back and forth along the x axis from x=-xm to x=+xm, in simple harmonic motion with period T. At time t=0, it is at x=+xm. When t=1.5T what is the particle's motion?
What is the (a) maximum and (b) minimum resistance that the variable resistor needs to provide in order for the "toasting" to last between 30 and 90 seconds?
A 4.00 X 100 g glass coffee cup is 20.0 C at room temperature. It is then plunged into hot dishwater at a temperature of 80.0 C. If the temperature of the cup reaches that of the dishwater, how much heat does the cup absorb? Assume that the mass o
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