Physics, 14.11.2019 21:31 maxy7347go
Abaseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. the duration of the collision is 8.0ร10โ3 seconds. the ball moves off with a speed of 50 meters/second in the opposite direction. what is the value of the force?
a. 1.8ร102 newtons
b. 1.2ร102 newtons
c. 1.3ร103 newtons
d. 1.4ร103 newtons
Answers: 3
Physics, 22.06.2019 08:00
While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit
Answers: 2
Physics, 22.06.2019 11:50
The mass of the sun is 1.99ร1030kg and its distance to the earth is 1.50ร1011m. what is the gravitational force of the sun on the earth?
Answers: 3
Physics, 22.06.2019 16:00
The solid that is formed and usually sinks to the bottom of a solution is the
Answers: 2
Physics, 22.06.2019 18:30
Asmall grinding wheel has a moment of inertia of 4.0ร10โ5 kgโ
m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?
Answers: 3
Abaseball with a mass of 0.15 kilograms collides with a bat at a speed of 40 meters/second. the dura...
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