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Q1. Over a 30-day period a power plant generates an average of 751 MW of electrical power and 1225 MW of waste heat, and burns 1.83×108 kg of coal. Assume that it takes 2.30 kg of oxygen to burn 1.00 kg of coal. (The actual amount varies with the type of the coal). What is the total mass of the reagents used in the combustion all through the 30 days?
Q2. Assume you are a fish. You get up every morning and weigh yourself (in water), and find you weigh 0.42 N. You, being a boxfish, are a box measuring 4.174 cm per side. You see a poor, hungry fisherman, and decide to be his dinner. You hook yourself; enjoy a last meal of worm, and after that go to heaven. The gravity in heaven is 2.718 m/s², and you are no longer under water, so how much do you now weigh, in N
The object is authorized to move on a horizontal frictionless surface. The object is released from rest when the spring is compressed 0.15 m. Find out the force on the object.
The coefficient of kinetic friction
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
The distance between deer B and C is 92 m. What is distance between deer A and C.
A disk of radius R = 9 cm is pulled along a friction less surface with a force of F = 15 N by a string wrapped around the edge. At the instant when d = 28 cm of string has unwound off the disk, what is torque exerted about the center of the disk.
Compute the y-component of acceleration
A 73.0 kg construction worker stands at the far end of the beam.What is the magnitude of the torque about the point where the beam is bolted into place .
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
The angular momentum of Earth is constant
What magnetic field strength produced by Helmholtz coils
Discover new angles with respect to the x-axis
W hat is crates acceleration
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