subject
Physics, 03.12.2019 04:31 jesusmojica25

Answer all! correct answers

in order to do work, the force vector must be

question 1 options:

in a different direction than the acceleration vector.

in the same direction as the displacement vector and the motion.

in the same direction as the acceleration vector.

in a different direction than the displacement vector.

in which of the following cases is work being done on an object?

question 2 options:

carrying a box down a corridor

pulling a trailer up a hill

pushing against a locked door

suspending a heavy weight with a strong chain

which situation is an example of not doing work?

question 3 options:

running up stairs

throwing a baseball

lifting a couch

carrying a box

work is measured in

question 4 options:

joules

meters

watts

newtons

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 09:30
Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
Answers: 2
question
Physics, 22.06.2019 11:00
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
question
Physics, 22.06.2019 12:00
Explain what happens at the saturation point when adding salt to water at room temperature.
Answers: 3
question
Physics, 22.06.2019 12:20
Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)
Answers: 1
You know the right answer?
Answer all! correct answers

in order to do work, the force vector must be

...
Questions
question
Business, 06.07.2019 16:30
question
Mathematics, 06.07.2019 16:30
Questions on the website: 13722367