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The mass of the sun is 1.99 X 10^30 kg and its distance from Earth is 150 million kilometers (150 x 10^9 meters). What is the gravitational force between the sun and Earth?
A thermometer can be made from a brass wire (temperature coefficient of resistivity 0.00150°C^?1 at 20.0°C), What is the resistance of the wire
How much force is required to hold a 7.20 cm diameter hose delivering 470 L/min by a 0.73rm cm diameter nozzle.
A long uniform rod of length 1.00 m and mass 6.00 kg is pivoted about a horizontal, frictionless pin through one end. Find the components of the reaction force at the pivot
Sirius is a binary star (two stars orbiting their center of gravity) they are separated by 2 light hours, What diameter aperture must we use in the telescope to resolve the red light(700 nm) from the two stars
A 41 kg ice skater is moving at 4.73 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. Find the force exerted by the rope on her arms
You create a plot of a (in m/s2) vs sin ? and the linear fit of your graph gives a slope of 9.7260 ± 0.3100.
Michael Phelps won a gold medal at the 2008 Beijiing olympics by swimming the 200 meter medley in 1:54:80. On an off-day Mike swims the medley in 1:58:32. What is the speed in mph? (Give the ans. to two decimal places)
X-rays are scattered from a target at an angle of 78.0° with the direction of the incident beam. Find the wavelength shift of the scattered x-rays
An object, mass 1.48 kg, moves in a horizontal circle with a radius of 1.52m. The object has an intial velocity of 28.0 m s-1. If the kinetic coefficient of friction between object and surface is 0.382.
Red light of wavelength 673.0 nm produces photoelectrons from a certain photoemissive material. Green light of wavelength 515.0 nm produces photoelectrons from the same material with 1.50 times the maximum kinetic energy. What is the material's work ..
In a vacuum a proton (charge =1.60 E-19 C, mass = 1.67×10-27 kg) is moving parallel to a uniform electric field that is directed along the +x axis, Determine the acceleration of the proton
a force of 1250 N is used to push a piano up a ramp 12 m long to a height of 1.5 m above the ground. the piano weighs 7500 N. what is the work input and output
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