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A satellite in Earth orbit has a mass of 91 kg and is at an altitude of 1.97 x 10^6 m. What is the potential energy of the satellite%u2013Earth system
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. What is the volume flow rate of the petroleum along the pipe
A 55.0 kg crate rests on a level floor at a shipping dock. What horizontal pushing force is required to just start the crate moving
Three infinite nonconducting sheets, with uniform positive surface charge densities, sigma, 2sigma, and 3sigma, are arranged to be parallel. What is their order, from left to right
The density of gasoline at 0 degrees celsius is 0.68E3 kg/m^3. What is the density on a hot day when the temperature is 35 degrees celsius
A 1450 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1270 N object hangs from its end. Find the tension in the cable holding up the boom
A metal sphere has a charge of +6.9uc. What is the net charge after 7.6x10^13 electrons have been placed on it
how to convert ac current to dc current? is there any conversion factor? how to select an autotransformer for dc motors
Hello Since a prop-airplane can remain in horizontal flight indefinitely, why then, in the air shows, when the airplane is pointing vertically upward
We're doing a buoyancy lab and this equation is derived using the apparent mass of a sinker, calculate the density of the cylinder of wood
Cell phone sends 1.25ghz magnetic waves. Field vector of the wave has a strength of 24 mv/m and points upward, Which direction does magnetic vector point
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
Jack wants to build a radio to tune to a station at 520 MHz. He has available 0.25 micro hertz inductor, What value of capacitance should be used
Moonlight is primarily reflected sunlight. If the moon reflects 15% of the photons that strike its surface, and we know that the intensity of sunlight at earth is I, what is the intensity of moonlig
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, How much work is done on the hovercraft by the force during this time
A Girl is pushing on a 45 kg dresser with 300 N of force. The dresser has a coeficient of statice friction of 0.83 and a coeficient of kinetic friction of 0.55. How much is the force of friction on
A 40 kg child slides down a playground slide at a constant speed. The slide has a height of 3.6 m and is 7.6 m long. find the magnitude of the kinetic friction force acting on the child
A 58.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.700 and 0.480, respectively. What horizontal pushing force is required to just start
the planes speed when landing in still air is 20 m/s. what is the speed relative to the ground if it lands with the 10 m/s wind
two gear wheels with radius of 25 cm an 60 cm have interlocking teach. How many radians does the smaller wheel turn
A 9.0 V battery is connected across two large parallel plates that are separated by 4.5 mm of air, creating a potential difference of 9.0 V between the plates. What is the electric field in the regi
An plane and pilot have a total mass of 168 kg. While executing a banked curve of radius 20 m at a speed of 12 m/s
each second 5e23 nitrogen molecules (m=4.65e23 g) collide with a 10cm2 wall assume that the molecules all travel with a common speed of 290m/s, What is the pressure on the wall
A cacher catches a 145 g baseball traveling horizontally at 34 m/s, How large an impulse does the ball give it to the catcher
Two figure skaters, one weighing 625N and the other 700N , How much kinetic energy is created during the skaters maneuver