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A 4 kg block and a 2 kg block can move on the horizontal frictionless surface. The blocks are accelerated by a +12N force that pushes the larger block against the smaller one. Determine the force that the 2 kg block exerts on the 4 kg block.
Three blocks are in contact and sitting on frictionless table. What is the magnitude of the force exerted by the third block on the second block
If a 1.00-kHz sound source moves at a speed of 48 m/s toward a listener who moves at a speed of 29.5 m/s in a direction away from the source, what is the apparent frequency heard by the listener
write an algebraic expression for the total pressure on the diver at that point and calculate the total pressure on the diver in atms
A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. What is the focal length of the diverging lens
q1. an object hangs from a spring balance. the balance indicates 40 n in air and 30 n when the object is submerged in
What total impulse was imparted by these forces. Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.0 cm-3, and their speed is 702 km/s. Find the current density of these protons.
A small, plastic sphere of mass m = 111 g is attached to a string There is an electric field of 122 N/C directed along the + x axis
A second oil is then poured into the right arm until the two levels are even. A small object (density 0.640 g/cm3 ) is dropped into the second column of oil and it is found to float with 20.0% of its volume above the surface.
you shoot a ball of mass 50g into a pendulum arm of mass 200g whose center of mass rises 15cm. calculate the initial
A motorcycle and a police car are moving in the same direction, with the motorcycle in the lead. What frequency does the motorcyclist hear in this case
a football kicker can give the ball an initial speed of 34 ms. what are the a least and b greatest elevation angles at
The Lunar Lander of mass 1.9Ã?104kg made the last 150m of its trip to the Moon's surface in 120s, determine the upword force required to decend at a constant speed
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