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Things around you are emitting infrared radiation that includes the wavelength 1.15 10-5 m. What is the energy of the photons?
A person takes a trip, driving with a constant speed of 89.5km/h except for a 22.0-min rest stop. If the persons average speedis 77.8 km/h, evaluate how much time is spent on the trip
A satellite moves in a circular orbit around Earth at a speed of 4439 m/s. Determine the period of the satellites orbit
A downhill skier, whose mass is 50.0 kilogram, attains a speed of 21.0 m/s just as he reaches the point where a jump is necessary, Find the normal force acting on the skis at point A
A baseball is hit with an initial speed of 44 m/s at an angle of 34° relative to the x (horizontal) axis. What angle does vector v make with the x axis at this moment
A uniform electric field with a magnitude of 250N/C is directed in the positive x direction. A 12uC charge moves from the origin to the point (20.0 cm, 50.0 cm). what is the change in electrical potential energy of the system as a result of the ch..
The electric starter in an automobile equipped with a 12 V battery draws a current of 85.00 A when in operation. What amount of electric energy has been withdrawn
A "sun yacht" is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances,it can be large enough to send the spacecraft outward from the Sunon a cost-free but slow trip. Suppose that the spa..
two particles each have a mass of 6.00 x 10-3 kg. one has a charge of 5.0 x 10-6 c and the other has a charge of -5.0
A student sits on a rotating stool holding two 4.0-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
A disk-shaped merry-go-round of radius2.63 m and mass 135 kg rotates freely with an angualr speed of .621rev/s. What is the final angular speed of the merry-go-round
Air at atmospheric pressure (101 KPa) is to be compressed to one-sixth of its original volume. At what pressure will the air be if its temperature is unchanged?
A skier wears a jacket filled with goose down that is 15 mm thick. Another skier wears a wool sweater that is 7.00 mm thick. Both have same surface area.
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