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A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is measured. when the same horizontal force is the only force exerted on a second block, the horizontal acceleration is three times as large. what can you conclude about the masses of the blocks?
a 27 kilogram block is being pulled up a ramp with a force of 250n. the ramp has an incline of 31 degrees above the
Water flows over a waterfall 10 meters to a turbine. Water flows at a rate of 10kg/sec. How much power is delivered to the turbine
what is the potential difference between the plates.Take the zero of the gravitational potential energy to be at the position of the child as the ropes are horizontal.
a 7.4 cm-diameter-baseball has a mass 145 g and is spinning at 2000 rpm. Treating the baseball as a uniform solid sphere, whats its angular momentum
An ideal gas at 20 C consists of 2.2 X 10^{22} atoms. 4.3 J of thermal energy are removed from the gas. What the new temperature in C.
The Hall effect can be used to determine the density of mobile electrons in a conductor. Find the density of mobile electrons in the material
a metallic surface is illuminated with light of wavelength 400 nm if the work function for this metal is 2.487 eV what the velocity of the ejected electrons would be
A cart that is initially at rest moves down a slope that is inclined at 5o above the horizon, What is its final speed at the end of the slope
A triangular circuit is formed with a current of 2A running through each wire (3cm>4cm>5cm), find the net force on the circuit
A 40.6 kg keg of beer rolls down a 3.40 m long plank leading from the flatbed of a truck 0.880 m above the ground
A circular saw blade rotating at 15 rev/sec is brought to a stop in 125 revolutions. what is the size of the angular acceleration experienced
A car is being pulled out of the mud by two forces that are applied by the two ropes. The dashed line in the drawing bisects the 30.0° angle.
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