Physics, 24.06.2019 10:00 pinklavalamp
Newton has three laws of motion. seat belts are used to keep the passengers remaining in their seats during an accident. if the seat belts are not present the passengers would continue to move forward when the car stops. which of newtons three laws does this demonstrates? 1st law2nd law3rd lawwe use simple machines in our daily life. if i use a knife to cut my sandwich for lunch, i've used less force and done less work. i've used more force and done more work. i've used less force and done the same amount of work.
Answers: 1
Physics, 22.06.2019 12:40
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
Physics, 22.06.2019 17:10
It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
Newton has three laws of motion. seat belts are used to keep the passengers remaining in their seat...
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