Physics, 17.07.2019 09:00 victoriavacodos
Ahockey puck is pushed by a stick with a force of 750 newtons. the puck travels 2.0 meters in 0.30 seconds. how powerful is the push? (ignore frictional effects.)
Answers: 1
Physics, 22.06.2019 07:30
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
Physics, 22.06.2019 19:30
Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
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, 23.06.2019 03:10
You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.
Answers: 2
Ahockey puck is pushed by a stick with a force of 750 newtons. the puck travels 2.0 meters in 0.30 s...
Mathematics, 21.02.2021 07:20
History, 21.02.2021 07:20
Mathematics, 21.02.2021 07:20
English, 21.02.2021 07:30
Physics, 21.02.2021 07:30
Arts, 21.02.2021 07:30
History, 21.02.2021 07:30
Social Studies, 21.02.2021 07:30
Health, 21.02.2021 07:30
English, 21.02.2021 07:30
Advanced Placement (AP), 21.02.2021 07:30
Mathematics, 21.02.2021 07:30