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A luggage conveyor belt is inclined at at an angle 15.6 degrees and has length 350m . The belt moves at a speed of 12.2km/h and provides power for 45 crates at a time, with an average mass per crate of 71.0 kg
Estimate the power required to operate the luggage conveyor, neglecting the mass of the belt and any friction.
It stops 90 cm from where you free it. The spring steady is 370 N/m. What is the coefficient of kinetic friction between the block and the table.
Calculate P necessary to just start opening the 2 m wide gate.
Radioactive isotopes frequently occur together in mixtures. Assume a 400g sample contains, with a half-life of 12 days, and, with a half-life of 4.5 days. If there are firstly twice as many calcium atoms as there are barium atoms, what will be the ra..
The aurora is caused when electrons and protons, moving in earth's magnetic field of 5x10^-5 T, collide with molecules of the atmosphere and cause them to glow. What is the radius of the circular orbit for (a) an electron with speed 1.0×10^6 and (b) ..
The loaded cab of an elevator has a mass of 2.8 x 10^3 kg and moves 214 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
An archeologist on a dig finds a fragment of an ancient basket woven from grass. Later, What is the age of the basket
The objective lens in a microscope with a 21.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of 15.0. What is the focal length of the objective
A 2.8 kg rectangular air mattress is 2 m long, 0.5 m wide, and 0.1 m thick. What mass can it support in water before sinking.
A wooden rod of negligible mass and length 82.2 is pivoted about a horizontal axis through its center. A white rat with mass 0.440 clings to one end of the stick, and the mouse with mass 0.220 clings to the other end. The system is released from rest..
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.65kg ) at rest. You begin pulling her forward, Calculate the impulse you imparted to the wagon and its passenger
How to find the magnetic field
Find out the depth of the kerosene
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