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A planet of mass m = 8.15 Ã? 1024 kg is orbiting in a circular path a star of mass M = 6.05 Ã? 1029 kg. The radius of the orbit is R = 3.65 Ã? 107 km. What is the orbital period (in earth days) of the planet Tplanet?
A 40 ohm resistor and a 60 ohm resistor are connected in series to a 12 volt battery. What is the voltage difference across each resistor
A standing wave in a pipe with both ends open has a frequency of 206. Hz. The next higher harmonic has a frequency of 309. Hz. How long is the pipe
Find out the edge dimension of each cube. Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. find the volume of each cube.
Shaving/makeup mirrors typically have one flat and one concave (magnifying) surface. compute the focal length of the mirror
in a science fiction movie a 100 g base ball travelling with a speed of 60m/s and an electron travelling at a speed of 1.2*10^8 m/s are approaching each other for a head on collision, what is the momentum of the base ball
While taking photographs in Death Valley on a day when the temperature is 58.0°C, What current does he register there if the temperature is -88.0°C
A mechanic pushes a 2.20 x10^3 kg car from rest to a speed of v, doing 5400 J of work in the process. During this time, the car moves 28.0 m. Neglecting friction between car and road, find each of the following.
how many days would be required to move one of the charges.
A 58-kg water skier is being pulled by a nylon tow rope that is attached to a boat. What is the change in the length of the rope when the skier has an acceleration whose magnitude is 0.90 m/s2
A harmonic wave travels in a wire with amplitude 6.05 mm, wavelength 0.451 m, and frequency 462 Hz. What is speed with which the wave travels.
Two positive charges of 7.40 micro-Coulombs are placed on a horizontal surface with a coefficient of static friction 0.72. If they are originally far apart.
a string stretched between two fixed ends vibrates in its second harmonic with a frequency f=2 Hz. if the velocity that links the frequency and wavelength is equal to 40 m/s, find the wavelength of the stationary wave
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