Physics, 17.10.2020 08:01 katieleeisaacs8976
PLEASE HELP! **
Two cars are initially separated by 150m but they will both move in the same direction. Car A has a constant velocity of 10m/s while car B (which starts behind car A) has a constant velocity of 12m/s. How long will it take for Car B to catch up to car A?
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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 25๏ฐc to 40๏ฐc? the specific heat capacity of argon is 0.520 j/(gยทk) 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, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
Answers: 2
Physics, 22.06.2019 12:30
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5ร103 j and the energy transferred thermally out is 99.4ร103 j. there are 1.5ร1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1โ2 b. 2โ3 c. 4โ1 d. 1โ2 and 4โ1 e. none of the above
Answers: 3
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