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Four Point charges have equl magnitudes, three are positiveand one is negative. They ae fixed in place on the samestraight line and separated by distance d. Consider the netelectrostatic force acting on each charge. Calculate the ratio of largest to smallest net force.
A solid, conducting sphere of radius a carries an excess charge of +6 microC. Determine the excess charge on the inner surface of the outer sphere
Angular speed is the increased to 10 rad/2 over the next 4 seconds. Illustrate what is the average tangential speed at the edge of the grindstone during this time
A 50.0-g sample of a material at 80.0 degree C is dropped into a calorimeter containing 100.0g of water at 20.0 degree C. What is the specific heat of the material
a gun has a barrel velocity of 400 meters per second. at what angle would the gun have to be fired for the bullet to
A person weighs 75 N on the surface of the moon and 427 N on the surface of the Earth. What is the acceleration of gravity on the surface of the moon
Agent Arlene devised the following method of measuring the muzzle velocity of a rifle. She fires a bullet into a 4.600-kg wooden block resting on a smooth surface, What is the speed v of the bullet
A 410 W Carnot engine operates between constant-temperature reservoirs at 98°C and 49°C. find the rate at which energy is exhausted by the engine as heat
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions, Calculate the rate at which the sun is losing mass
If a loop of chain is spun at high speed, it can roll along the ground like a circular hoop without collapsing. consider a chain of uniform linear mass density ? whose center of mass travels to the right at a high speed Vo. Determine the tension in t..
The focal length of diverging lens is negative. if f=-20cm for a particular diverging lens, where well the image be formed of an object locate 50cm to the left of the lens on the optical axis? What is the magnification of the image?
An incident X-ray photon of wavelength 0.2800 nm is scattered from an electron that is initially at rest. find the momentum gained by the electron
The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 12 C of charge and 6.1 x10-5 J of energy.
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