Center of gravity at the midpoint of the see-saw
What is the torque produced about the fulcrum by a 100.0kg mass resting on a see-saw of length 2.00m at a distance of 0.500m from the center of mass? The mass of the see-saw is 25.0kg and the center of gravity is at the midpoint of the see-saw.
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The density of CO2 is 1.98 g/L at STP. What is the mass of exactly one liter of the gas if the pressure increases by 40mmHG?
Edgar and Andrew are playing a card game with a deck of equally likely cards. The rule of the game is: Edgar draws 5 cards randomly from a deck. If his hand contains a pair, he wins. If not, then its Andrews turn to do the same. What is the probab
An object is placed in front of a converging lens in such a position that the lens (f = 14.0 cm) creates a real image located 24.0 cm from the lens. Then, with the object remaining in place, the lens is replaced with another converging lens (f = 1
At a certain temperature the solubility of aluminun sulfide is.703 g/L. What is the solubility in mol/Land Calculate the Ksp for aluminum sulfate.
The horizontal pipe is fitted with three standard screwed elbows equally spaced. Calculate the flow rate including all losses.
A NASA satellite has just observed an asteroid that is on a collision course with the Earth. The asteroid has an estimated mass, based on its size, of 5 X 10^9kg. It is approaching the Earth on a head-on course with a velocity of 560 m/s relative
Two cards are chosen at random from a deck of 52 cards without replacement. What is the probability of choosing a king and the other is a queen?
What is the pressure in atmospheres on the body of a diver if he is 32 ft below the surface of the water when atmospheric pressure at the surface is 0.94 atm?
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