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Assume a satellite is in a circular orbit 3.0 Earth radii above the surface of the Earth (4.0 Earth radii from the center of the Earth). Determine by how much does it have to increase its speed in order to be able to escape Earth? [Hint: You need to compute the orbital speed and the escape speed.]
A wire has a length of 4.18 x 10-2 m and is used tomake a circular coil of one turn. There is a current of 8.34 A in the wire. In the presence of a 6.34-T magnetic field, what is the maximum torque that this coil can experience?
A pair of flat mirrors meet to form a right angle. A beam of light is incident on one of them at a point 11.5 cm from their point of intersection, what is the angle of incidence at the first mirror
a uniform rod of mass 2.75times10-2 and length 0.410 rotates in a horizontal plane about a fixed axis through its
the 1400 turn coil in a dc motor has an area per turn of 1.1 multiplied by 10-2 m2. the design for the motor specifies
parallel plate capacitor has capacitance of 2.0 ?F and plate separation of 1.0 mm. What is the magnitude of the greatest charge
A horizontal spring is lying on a frictionless surface. Oneend of the spring is attaches to a wall while the other end isconnected to a movable object. What is the speed ofthe object at the instant
A moon orbits a planet of unknown mass with a period of 1.8 days. If the radius of the moon's orbit is 420,000,000 meters, find the mass of the planet
questionthink the sun to be at the origin of a xy-coordinate system. a telescope spots an asteroid in the xy-plane at a
A hang glider and its pilot have a total mass equal to 120kg.While executing a 360 degree turn, the glider moves in a circlewith an 8-m radius. What is the net force on the hang glider
The moment of inertia of a uniform ring is I (r) = M (r) * R^2 (r), where M (r) and R (r) denote the mass and radius of the ring. Compute the moment of inertia of this disk
A 79kg person holds out his arms so that his hands are 1.6m apart. Normally, a person's hand makes up about 1% of his or her body weight. For round numbers, we shall assume that all the weight of each hand is due to the calcium in the bones.
A scuba diver is 48 m below the surface of a lake, where the temperature is 5°C. He releases an air bubble with a volume of 17cm3. The bubble rises to the surface.
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