ACTIVITY 4: push with your fingers on something that moves (binder, empty chair, etc.) when you push it like a chair. Notice what’s happening to your fingers. Is anything pushing on them while they are pushing and moving the chair? Explain.
ACTIVITY 5: grab two of the same coins. Placed one coin on a smooth surface. Slide the second coin toward the first coin and keep trying until you hit the first coin with the second coin. What happens to the coin that was at rest (1st)? What happened to the coin that was moving(2nd)?
ACTIVITY 6: stand up. Begin to walk forward. When you stand at rest and then move forward, you have changed your velocity. That requires a force. Would extended the force on you to change your velocity? (Hint- you can’t push yourself- some thing else has to push you forward). Justify your answer.
Answers: 3
Physics, 22.06.2019 03:30, coollid876
Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)
Answers: 1
Physics, 22.06.2019 04:00, jaejaeJae9534
Acompound machine is also called a machine. a. force b. simple c. complex d. directional
Answers: 1
Physics, 22.06.2019 06:00, nicollexo21
Using a pedometer, you walk 3000 steps in 20 minutes, so your speed is 150 steps/min. each of your steps is 0.7 m long. what is your speed? 150 steps/min=/s=/h
Answers: 1
Physics, 22.06.2019 07:10, ddswaggsoflyy3176
Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?
Answers: 2
ACTIVITY 4: push with your fingers on something that moves (binder, empty chair, etc.) when you push...
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