Physics, 24.05.2020 00:06 reagriffis24
1. Describe the universal gravitational law.
2. Evaluate the techniques and models used by Ptolemy and Copernicus to explain the setup of the universe.
3. A child picks up a tennis ball tied to the end of the rope. He swings the rope around, over his head, in a circle. Once the ball is spinning, he lets go of the string and the ball goes flying. Explain which of the following images correctly shows which may the ball fly and why.
Answers: 1
Physics, 22.06.2019 02:40
What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.
Answers: 2
Physics, 22.06.2019 12:30
As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?
Answers: 1
Physics, 22.06.2019 13:30
6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
Answers: 3
1. Describe the universal gravitational law.
2. Evaluate the techniques and models used...
2. Evaluate the techniques and models used...
Mathematics, 26.02.2020 04:30
History, 26.02.2020 04:30
History, 26.02.2020 04:30
Mathematics, 26.02.2020 04:30