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The International Space Station orbits the Earth at an average altitude of 362 km. Assume that its orbit is circular, and calculate its orbital speed. The Earth's mass is 5.97×1024 kg and its radius is 6.38×106 m.
Two blocks, each of mass m = 1.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 4.7 N, Find the frictional force acting on the upper block
A charge of -8.8 µC is traveling at a speed of 7.3*106 m/s in a region of space where thereis a magnetic field. The angle between the velocity of the chargeand the field is 52°. A force ofmagnitude 5.2*10-3 N acts on the charge. What is the magnitu..
A constant current of I = 15 A exists in a solenoid whose inductance is L = 42.2 H. The current is then reduced to zero in a certain amount of time. If the current goes from 15 to 0 A in a time of 75 ms, what is the emf induced in the solenoid
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank.
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.
"A 575g air-track glider attached to a spring with spring constant 14.0 N/m is sitting at rest on a frictionless air track. What is the amplitude of the subsequent oscillations
Electrons emitted by the photoelectric effect are accelerated and then strike a phosphorescent screen, causing it to glow more brightly than the original scene.
A concave mirror used by a person who is shaving or applying makeup creates a virtual image of the face that is 1.60 times larger than the person's actual face, Determine the image distance and focal length
A square loop of wire with 2.00m sides is perpendicular to a uniform magnetic field that points into the paper. what is the direction of the current through the resistor
A 4.0kg block is suspended from a spring with force constant of500N/m. Find the amplitude of the resulting simple harmonic motion
A cubical box is 0.82m on a side. What is the volume of the box, as measured by this observer
Samantha pushes a 50.0 N crate up a ramp 25.0 m in length and inclined at 10.0 degrees with the horizontal. What potential energy does the crate experience
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