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A male skater with a mass of 60 kg pushes a female skater, mass of 45 kg, who then accelerates at a rate of 2.0 m/s^2. At what rate will the male skater accelerate? What is the direction of his acceleration?
A small, spherical asteroid has radius 4.00km and density 4760kg/m3. What's the escape speed from the surface
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg(m^2). What is the rotational kinetic energy of the rotating wheel
A canister containing 115 kg of an ideal gas has a volume of 6.5m3. If the gas exerts a pressure of 4.0 x 105 Pa, What is the rms speed of the molecules
A 0.650 kg ice puck, moving west with a speed of 5.0 m per second, what will be the speed and direction of each puck after the collision
Two astronauts of equal mass 70 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 14 meters. What is the new angular velocity of the two astronauts
In a science fiction story, a microscopic black hole is given anenormous positive charge by firing an un-neutralized ion driveexhaust (consisting of positively charged xenon ions) into it forsix months.
Vector A has a magnitude of 9.10 units and makes an angle of 54.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the following.
The output voltage of a 81W transformer is 12V , and the input current is 19A. By what factor is the voltage multiplied
The Balmer series in atomic hydrogen is the series of wavelengths emitted by the electron when it makes a transition from an energy level with n > 2 to the n = 2 level, Find the four largest wavelengths in the Lyman series
e drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half thedistance at 41.0mph, What is her average speed on the return trip
A 60.0-kg runner expends 335 W of power while running a marathon. determine the volume of bodily fluid (assume it is water) lost per hour
A crate of mass 11.5 kg is pulled up arough incline with an initial speed of 1.50 m/s. The pulling forceis 100 N parallel to the incline, which makes an angle of16.0° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate..
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