Physics, 02.02.2020 11:43 Dragonskeld
A100 gram mass of metal at 146 celsius is placed in 100 grams of cool water [cw=4.186 j/g*co] at 5 celsius. the final temperature of the mixture is 25 celsius. what is the specific heat capacity of the metal?
cool water = -[metal]
mcaδt = -[mcwδt]
Answers: 1
Physics, 21.06.2019 17:30
Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?
Answers: 3
Physics, 22.06.2019 10:00
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
Physics, 22.06.2019 20:40
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
A100 gram mass of metal at 146 celsius is placed in 100 grams of cool water [cw=4.186 j/g*co] at 5 c...
Mathematics, 28.10.2019 00:43
Health, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43
Physics, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43
Chemistry, 28.10.2019 00:43
Physics, 28.10.2019 00:43
History, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43
History, 28.10.2019 00:43
English, 28.10.2019 00:43
Mathematics, 28.10.2019 00:43
English, 28.10.2019 00:43