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Q. Calculate the heat flow through a 0.750m long copper bar with a cross sectional area of 0.50 cm2. One end at 2.0 degrees Celsius and the other end at 101.0 degrees Celsius.
Q. How many kilograms of water at 100.0 C can be converted to steam by the addition of 1.13 x 10^7 joules of thermal energy?
approximately what is the mass of an object whose weight equals the force from part "b"? can you lift such a mass.
Conclude the magnitude of angular acceleration
Runner A is initially 6.80 km west of a flagpole and is running with a constant velocity of 2.6 km/h due east. Runner B is at first 3.80 km east of the flagpole and is running with a constant velocity of 8.20 km/h due west. What will be the distan..
A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground.
Imagine a "free" electron and a "free" proton held midway between the plates of a charged equivalent plate capacitor. When released, how do their accelerations and directions travel compare.
An inductor used in a dc power supply has an inductance of 13.0 H and a resistance of 230 Omega. It carries a current of 0.210 A. What is the energy stored in the magnetic field? At what rate is thermal energy developed in the inductor? Does your rep..
Newton's universal constant of gravitation is G = 6.67 × 10-11 meters cubed (m3) per kilogram per second per second. The Sun's mass is M = 1.9891 x 10^30 kilograms. Earth's orbital period is P = 365.256366 days. Obtain the average radius of Earth's o..
Calculate the pressure at the center of pipe A. Suppose T = 10?C.
A jetliner is moving at a speed of 258 m/s. The vertical component of the plane's velocity is 85.8 m/s. find the magnitude of the horizontal component of the plane's velocity.
On a banked race track, the smallest circular path on which cars can move has a radius of 112m, while the largest has a radius of 165m, as the drawing illustrates. The height of the outer wall is 18m. The largest speed at which cars can move on thi..
A laboratory ultracentrifuge is designed to produce a centripetal acceleration of 5.0 x 10^6 g at a distance of 4.00cm from the axis. What angular velocity in rev/min is necessary.
An air puck of mass 0.029 kg is tied to the string and allowed to revolve in a circle of radius 2.0m on a frictionless horizontal surface. The other end of the string passes through a hole in the center of surface, and a mass of 2.6 kg is tied to it...
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