Physics, 28.03.2020 03:00 Suttyyyyyybear6056
The Grinch is trying to push a 5000-kg sled up the side of Mount Crumpit (whose side make an angle of 60 degrees above the horizontal) when he suddenly loses his grip and lets go of the sled. The sled starts sliding back down and soon afterwards hits a tree with an impact speed of 60 m/s, three hundred meters further down the slope.
Find the amount of gravitational potential energy that has been lost during the slide (in J).
How much kinetic energy has the sled gained during the slide?
The force responsible for the overall loss of mechanical energy is
A. normal force
B. weight
C. static friction
D. kinetic friction
The missing mechanical energy has been
A. lost for good
B. turned to kinetic energy
C. turned to potential energy
D. turned to thermal energy
Answers: 3
Physics, 22.06.2019 03:00
The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.
Answers: 2
Physics, 22.06.2019 13:30
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length of a column of water 1.00 km high for a temperature increase of 1.00ºc. note that this calculation is only approximate because ocean warming is not uniform with depth. (answer in ×10^{-3} −3 m)
Answers: 1
Physics, 22.06.2019 23:30
Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?
Answers: 1
Physics, 22.06.2019 23:50
What is part of a line has one endpoint and continues in one direction?
Answers: 1
The Grinch is trying to push a 5000-kg sled up the side of Mount Crumpit (whose side make an angle o...
English, 23.03.2021 22:50
History, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50
Chemistry, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50
Engineering, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50
World Languages, 23.03.2021 22:50
Mathematics, 23.03.2021 22:50