![subject](/tpl/images/cats/fizika.png)
Physics, 13.06.2020 04:57 sarinaneedshelp01
Suppose all the people of the Earth go to the North Pole and, on a signal, all jump straight up. Estimate the recoil speed of the Earth. The mass of the Earth is 6 1024 kg, and there are about 6 billion people (6 109). Take the average mass of a person to be 64 kg and the distance the average person's center of mass rises after leaving the ground to be 0.2 m. m/s
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:00, ceasar6071
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:40, itsyagirl11076
Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v
Answers: 1
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:30, rprest00
Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?
Answers: 3
You know the right answer?
Suppose all the people of the Earth go to the North Pole and, on a signal, all jump straight up. Est...
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
English, 24.01.2021 09:20
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 24.01.2021 09:20
![Konu](/tpl/images/cats/en.png)
English, 24.01.2021 09:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.01.2021 09:20
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.01.2021 09:20
![Konu](/tpl/images/cats/en.png)
English, 24.01.2021 09:20
![Konu](/tpl/images/cats/es.png)
Spanish, 24.01.2021 09:20
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 24.01.2021 09:20