Physics, 15.01.2020 05:31 leannhb3162
Afriend throws a baseball horizontally. he releases it at a height of 2.0 m and it lands 21 m from his front foot, which is directly below the point at which he released the baseball. (a) how long was it in the air? (b) how fast did he throw it?
Answers: 2
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, 22.06.2019 16:10
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Afriend throws a baseball horizontally. he releases it at a height of 2.0 m and it lands 21 m from h...
Mathematics, 16.12.2019 20:31
Mathematics, 16.12.2019 20:31
Chemistry, 16.12.2019 20:31
Mathematics, 16.12.2019 20:31
Mathematics, 16.12.2019 20:31
History, 16.12.2019 20:31
History, 16.12.2019 20:31
Health, 16.12.2019 20:31
Mathematics, 16.12.2019 20:31