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A 40.0-kg shell is fired from a gun with a muzzle velocity 85.0 m/s at 29.0o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. What is the horizontal speed of the other fragment?
Find out the maximum height reached by the rocket.
A particle moves on the x axis from x=0 to x=3. A force of magnitude F(x) = 3x3 + 4x acts on the particle. Calculate the work done by the force
Illustrate what is the maximum height of each ball after the elastic collision? What are the coordinates of the CM of the two balls when the lighter ball was pulled up? Consider the heavier ball to be at the origin before the collision.
an ideal gas occupies a volume of 1.0 cm at 20 degrees C, and atmospheric pressure. Determine the number of molecules of gas in the container
A 1.5-H inductor is connected in series with a 200-Ω resistor through a 15-V dc power supply and a switch, what is the maximum energy stored by the inductor
A heat pump extracts 7.0*10^6 J heat per hour from a well at 280K and delivers its output heat into a house at 320K. what minimum work must be supplied to the heat pump per hour
A charge of +q is situated at the origin, while an identical charge is located on the x axis at x = 0.58 m. A third charge of +4q is located on x axis at such a place that the net electrostatic force on the charge at origin triples.
Two photons have different frequencies f1 and f2 . If the ratio of their momenta is 22.5, what is the ratio of their frequencies
Two forces act on a block of wood. The first force has a magnitude of 8.66 N in a direction 12.0 degrees counterclockwise from the positive x-axis, What is the magnitude of the resulting force
A 70.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where beam is bolted into place.
Forces in a Three-Charge System Coulomb's law for the magnitude of the force between two particles with charges and separated by a distance is , where , and is the permittivity of free space.
A rock is lauched from the moon and travels away from it at a speed of 2/5, Call the event of the rocket's lauching event A, Draw a spacetime diagram of the situation, drawing and labeling the worldlines of the moon
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