Physics, 02.03.2020 06:53 sjjsksksj1590
A 5kg block on a rough horizontal surface is attached to a light spring (force constant=1.6kN/m). the block passes through its equilibrium position with a kinetic energy of 5J and is brought momentarily to rest after stretching the spring .06m. how much work is done by the frictional force on the block as it moves from its equilibrium position to the point of momentary rest?
Answers: 1
Physics, 21.06.2019 19:30
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 22.06.2019 01:00
Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude
Answers: 1
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Physics, 22.06.2019 21:00
What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
Answers: 1
A 5kg block on a rough horizontal surface is attached to a light spring (force constant=1.6kN/m). th...
Mathematics, 19.02.2021 09:40
Mathematics, 19.02.2021 09:40
Social Studies, 19.02.2021 09:40
World Languages, 19.02.2021 09:40
Mathematics, 19.02.2021 09:40
Mathematics, 19.02.2021 09:40
Health, 19.02.2021 09:40
Mathematics, 19.02.2021 09:40
History, 19.02.2021 09:40
Mathematics, 19.02.2021 09:50
World Languages, 19.02.2021 09:50