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Objects with masses of 200 kg and 500 kg are separated by 0.400 m. (a) Find the net gravitational force exerted by these objects on a 50.0 kg object placed midway between them. (b) At what position (other than the infinitely remote ones) can the 50.0 kg object be placed so as to experience a net force of zero?
You are in a kayak which can move at a velocity of 2.6 m/s when in still water. You are attempting to cross a river which is 110 across, How long does it take you to get to the other side
A 50 kg sled is subject to a net force of 20 N pushing in the direction of the sled motion as it is moving over a horizontal surface for a distance of 11 m after having started from rest. find the work done by friction while the sled is on the incl..
a 562 n physics student stands on a bathroom scale in an 824 kg including the student elevator that is supported by a
a helium nucleus has radius rhe 1.9 fm mass m 6.6 times 10-27 kg and charge 2e. a gold nucleus has charge 87e and
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown, What is the horizontal component of the ball's velocity just before it is caught
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.11 eV. What is the width of the square well
q1. a 97 kg man drops from rest on a diving board -2.8 m above the surface of water and comes to rest 0.68 s after
A parallel-plate capacitor has plates of area .5 m^2 separated by a distance of 2.0 mm. What is this capacitor's capacitance
Using thermogravimetric curve we can relate the mass changes to the stoichiometry involved. calculate the percentage weight loss for the following compounds when they are heated at uniform rate in thermogravimetric analysis.
the following questions ask you to solve problems involving topics weve covered this week. work each problem and post
The bowling ball has a diameter of 20.6 {rm cm}, and the angle the stick makes with the horizontal is 30.0 {rm ^circ}. You may suppose there is no friction between the stick and the bowling ball, though friction with the floor must be taken into acco..
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