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1. Using the Equation of Hydrostatic Equilibrium, show that if we measure the pressure at the base of the atmosphere and assume that the pressure at the top of the atmosphere is 0, we can determine Earth's surface density of its atmosphere (kg m^-2).
2. Use the answer in the previous part to write an expression for the total mass of Earth's atmosphere.
A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
In one such decay, the electron and the neutrino are emitted at right angles to each other. The electron(mass 9.11 x 10^-31kg) has a speed of 5.00×10^7m/s and the neutrino has a momentum of 8.10×10^-24kg m/s. What is the recoil speed of the nucleu..
A 7000 kg plane is launched from the aircraft carrier in 2 seconds by a force of 350000 N. What is the plane's acceleration.
A grocery cart with mass of 12kg is being pusch at constant speed up a flt 15 degree ramp by force which act at an angle 17 degree below the horizontal line.
suppose the speci?c heats of milk and coffee are the same as that of water.
How many kilograms of water at 100.0 C could be converted to steam by the addition of 1.13 x 10^7 joules of thermal energy.
Three resistors, 23, 45, and 73 ?, are connected in series, and a 0.55-A current passes through them. (a) What is the equivalent resistance? (b) What is the potential difference across the three resistors?
An airplane has a mass of 20,000 kg and takes off under the control of a constant net force of 30,000 N. What is the net force that acts on the plane's 73 kg pilot.
Physics - Classical Mechanics : explained, A student could either pull or push, at an angle of 300 from the horizontal, a 50-kg crate on a horizontal surface, where the coefficient of kinetic friction between the crate and surface is 0.20. The cra..
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.20 m. The mug slides off the counter and strikes the floor 0.60 m from the base of the counter.
When a certain spring is stretched by an amount x, it produces a restoring force of F(x) = ax=bx^2, where a and b are constants. How much work is done through an external force in stretching the spring by an amount D from its equilibrium length.
A 12.0 m long conveyor belt, inclined at 40.0°, is used to transport bundles of newspapers from the mailroom up to the cargo bay to be loaded on to delivery trucks. Each newspaper has the mass of 1.00 kg, and there are 26 newspapers per bundle. Concl..
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