Physics, 01.04.2021 23:20 justyne2004
Imagine driving down the road and you suddenly doubled your velocity. What then happens to your overall kinetic energy?
it is halved
it remains unaffected
it is doubled
it is quadrupled
Answers: 3
Physics, 22.06.2019 07:10
1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?
Answers: 3
Physics, 23.06.2019 00:50
Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n
Answers: 1
Physics, 23.06.2019 09:50
If one object has a large redshift and another object has a small redshift, what can we conclude about these two objects?
Answers: 1
Physics, 23.06.2019 20:00
9) a laser pulse takes 2.56 seconds to travel from earth to the moon and back. given that the speed of light 300000 km per second, how far away is the moon? show your calculations 10) calculate the moon’s density, in g/cm^3 given the moon has a mass of 7.3 x 10^22 kg and has a radius of 1.7 x 10^6 m.
Answers: 2
Imagine driving down the road and you suddenly doubled your velocity. What then happens to your over...
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