Physics, 23.10.2021 22:10, winterblanco
THERMAL ENERGY IS SUPPLIED TO A MELTING SOLID AT A CONSTANT RATE OF 2000W. Calculate the mass of the solid changes to liquid to 2.0 minutes. Assume that the specific latent heat of fusion of the solid is 95000 J Kg-1 and the heat exchange with the surroundings may be neglected.
Answers: 1
Physics, 21.06.2019 18:00, heyhay5748
Abaseball has a mass of 0.145 kg and approaches a bat at 40.0 m/s. after it is hit, the ball leaves the bat at 50.0 m/s directly back. find the impulse of the bat on the ball. 7.25 kg*m/s 13.1 kg*m/s 5.80 kg*m/s 1.45 kg*m/s
Answers: 2
Physics, 22.06.2019 10:00, squirrel6875
There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
Answers: 1
Physics, 22.06.2019 18:00, jeff2852
Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
Answers: 3
Physics, 22.06.2019 19:10, summer132
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 (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
THERMAL ENERGY IS SUPPLIED TO A MELTING SOLID AT A CONSTANT RATE OF 2000W. Calculate the mass of the...
Mathematics, 16.01.2020 06:31
Mathematics, 16.01.2020 06:31
History, 16.01.2020 06:31
Mathematics, 16.01.2020 06:31
Mathematics, 16.01.2020 06:31
Health, 16.01.2020 06:31