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An explosive shell, with total mass 80 kg is launched vertically into the air from a mortar. The shell explodes in flight and breaks into two parts with masses of 30 kg and 50 kg (assume the mass of the explosive is negligible). The portions land at the same time. The 30 kg portion of the shell lands 1000 m from the mortar. Determine where the other portion of the shell landed, explaining the physical principles that you applied to find your answer.
A 1.7 -V. dry cell can be tested by connecting it to a low-resistance ammeter; it should be able to supply at least 30 A. What is the internal resistance (in ohms) of the cell in this case
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 55.0 uA. What is the current density in the electron beam
The catapults on the USS George H.W. Bush can launch aircraft from rest to a speed of 150 mph over a distance of 270 feet. Find the acceleration of the aircraft
The density of ice is 917 kg/m3 and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m3. What is weight of the heaviest bear that the ice can support without sinking complete..
q1. if the proton is released from rest in a uniform electric field does equivalent electric potential at the protons
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m. Determine maximum height reached by dart.
If a feather is dropped on the moon falls 81.7cm in one second, calculate the acceleration due to gravity on the moon
A) What is the Boiling Point (Temperature) of Water?
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg, Find the initial separation between the particles
What is the energy density in the electric field at the surface of a 2.90-cm-diameter sphere charged to a potential of 1000V
A 3.70g bullet moving at 250m/s enters and stops in an initially stationary 3.50kg wooden block on a horizontal frictionless surface, How much work was done in stopping the bullet
Two tuning forks oscillating coherently and in phase at 12000Hz are separated by 0.35m. What is the phase angle difference between the waves
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