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Fred (mass 72 kg) is running with the football at a speed of 5.8 m/s when he is met head-on by Brutus (mass 120 kg), who is moving at 4.0 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide? The coefficient of kinetic friction between football uniforms and Astroturf is 0.30.
Two loudspeakers emit sound waves along the x-axis. What is the phase difference between the speakers
Find out the magnitude of the force exerted by the right pillar while a 90.0 diver stands at the far end of the board.
an object weighs 30 n. how would you explain this statement according to what you know about mass and acceleration due
A certain speed boat weighs 5,880 N. It can accelerate from 0 to 40 m/s in 5 seconds. (Need to see the math). How large is the net force acting on the boat
The doctors planning a radiation therapy treatment have determined that a 50g tumor needs to receive 0.21J, What is the dose in gray
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 92.3 cm as its objective and a 14.3-cm focal length lens as its eyepiece
Consider an ideal gas at 27 degree C and 1 atm. To get some idea how close these molecules are to each other, What is the length of an edge of each cube if adgacent cubes touch but not overlap
A rocket moves upward, starting from rest with an acceleration of 29.9 m/s2 for 3.31 s. It runs out of fuel at the end of the 3.31 s but does not stop. Evaluate how high does it rise above the ground?
A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field
A 0.88 kg mass attached to a vertical spring of force constant 196 N/m oscillates with a maximum speed of 0.40 m/s. Find the following quantities related to the motion of the mass.
A single loop of wire is lying in the plane of a paper, What will be the direction of the induced current flowing in the loop
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor, How tall is the tower
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