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Electromagnetic radiation travels at a speed of 3.0 x 108 m/s.
a) What is the wavelength of a radio wave that has a frequency of 3.5 x 105 Hz?
b) What is the frequency of an X-ray that has a wavelength of 2.5 x 10-10 m?
a to a closed system we add 28 kj of heat while its internal energy decreases by 24 kj. how much work do we gain or
Two identical ions are separated by a distance of 6.33×10-10 m and exert an electrostatic force of 4.66×10-8 N on each other. How many electrons are missing from each ion?
Starting from rest, a 12-cm-diameter compact disk takes 2.6s to reach its operating angular velocity of 1600rpm. How much torque is applied to the disk
A massless spring with spring constant 9.60 N/m hangs vertically. A body of mass 2.70 kg is attached to its free end and then released. Calculate the amplitude of the motion and frequency
Advise a new path based on these obstacles and how to make a chart in MS Project and import it to MS Word. It needs to be incorporated into the document.
Find the angle required to produce this alignment of . (Assume the pulleys are ideal.) Find out the magnitude of the force, that is applied to the femur in this case.
How much would it cost just to keep the hot water inside the heater for one week? d)Suppose that you wrap the hot water heater on all sides with a 10 cm thick blanket of fiberglass insulation which has a thermal conductivity of 0.04 W/(m K).
What mass (in grams) of steam at 100°C should be mixed with 257 g of ice at its melting point, in the thermally insulated container, to produce liquid water at 84.0°C.
A hare and a tortoise compete in a race over a straight course 2.25 km long. The tortoise crawls at a speed of 0.180 m/s toward the finish line. For how long in time was the hare stationary
a 90 kg sofa sits stubbornly on the wrong side of your living room. if the coefficient of static friction between the
An electric field greater than about 3x10^6 V/m causes air to break down (electrons are removed from the atoms and then recombine, emitting light). Estimate the voltage between your finger and the doorknob
The 1992 wold speed record for a bicycle (human powered vehicle)was set by Chris Huber. His time through the measured 200 m stretchwas was a sizzling 6.509 s, at which he commented, "Cogito ergozoom!"
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