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One way to attack a satellite in Earth orbit is to launch a swarm of pellets in the same orbit as the satellite but in the opposite direction. Suppose a satellite in a circular orbit 360 km above Earth's surface collides with a pellet having mass ..
A 102kg mass suspended from a wire whose unscratched length is 4.50m is found to stretch the wire by 7.50 mm. The wire has a uniform cross-sectional area of 0.110cm2. Calculate Young's modulus for the wire.
Two opposite point charges of magnitude 2.200e-6 C are placed near the origin. Find the magnitude of the dipole moment vector for this pair of charges
a flat metal washer is heated. as the washers temperature increases what happens to the hole in the center? a flat
A block with a mass of 8 kg is at rest on a horizontal surface. The coefficiant of static friction between the block, What is the magnitude of the frictional force on the block
A circular coil of radius 6.0 cm has 1500 turns and a total resistance of 0.25. Initially it is in a region with a uniform magnetic field of 0.25 T perpendicular to the coil area. Find the average emf induced in the coil
An atom by a single electron (i.e. a hydrogen-like atom) has anatomic number Z = 3. What is the principal quantum number of the state in which the electron has the similar total energy as aground state electron has in the hydrogen atom?
A 13 g bullet traveling 230 m/s penetrates a 2.0 kg block of wood and emerges going 170 m/s. how fast does it move after the bullet emerges
An ambulance leaves the police station in Big City and travels 7 blocks north then 7 blocks east to pick up a patient. How far (the total "distance") did the ambulance travel
welding machine draws a 18A of current at 240V. When it is inadvertently connected to a 120V outlet, the current in it is 10A. Is the machine's resistance ohmic
A parallel-plate capacitor has a plate separation of 5.0 cm. If thepotential difference between the plates is 2000 V, with the top plate at the higher potential, what is the electric field between the plates?
A bird watcher meanders through the woods, walking 1.78 km due east, 1.03 km due south, obtain the magnitudes of the bird watchers displacement
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