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A huge 5.0 F capacitor has enough stored energy to heat 2.5kg of water from 11C to 95C. What is the potential difference across the plates?.
Human skin is most sensitive to ultraviolet light of approximate wavelength 300 nm, I know the energy of the light is 6.626e-19 J. The threshold for sunburn occurs when 1 cm2 of skin absorbs about 1015 of these UV photons over an interval of seve..
Place the following temperatures in order from least to greatest, and explain what each temperature represents using thermodynamically sound principles:
An airplane traveling north at 400 m/s is accelerated due east at a rate of 50m/s squared for 6 seconds. what is the final speed of the plane
The oxygen molecule (O2) contains two oxygen molecules, each with mass 2.7x10^-27 kg and a bond distance of 1.24x10^-10 m. Calculate the following: The moment of inertia for rotation about an axis perpendicular to the bond.
An object is thrown upwards with a speed of 14 m/s. How high above the projection point does it reach
At a time t = 2.60s , a point on the rim of a wheel with a radius of 0.180m has a tangential speed of 55.0m/s as the wheel slows down, Calculate the wheel's constant angular acceleration
A 1432.0 g mass is on a horizontal surface with μk = 0.44, Calculate the distance the spring was compressed. What is the velocity of the mass as it loses contact with the spring
In a hot star, because of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Find the wavelengths of the next three spectral lines nearest to the line of longest wavelength
A circular coil, with radius of 10 cm, and 25 turns, rotates in a constant magnetic field of strength 2.4 T, If the magnetic field that the coil is in points down the page, which direction does the coil rotate
A 102-N grocery cart is pushed 13.0 m by a shopper who exerts a steady horizontal force.
A proton that has a mass m and is moving at 280 m/s in the + direction undergoes a head-on elastic collision with a stationary oxygen nucleus of mass 16m
A 1 012-kg satellite orbits the Earth at a constant altitude of 93-km. What is the change in the system's potential energy
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