Answer:
1470Joules
Explanation:
Workdone = Force * distance
Since the worker pushes the crate up the 3m ramp. The distance covered is 3m
Force = Mass * Acceleration due to gravity
Force = 50*9.8
Force = 490N
Workdone = 490 * 3
Workdone = 1470Joules
Hence I did 1470Joules of work
F = ma
F/m = a
Acceleration, a = F/m = Force / Mass
a) Mass
Yes water is liquid.
Explanation: At room temperature (anywhere from zero degree centigrade to 100 degrees centigrade), water is found in a liquid state. This is because of the tiny, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a second.
Answer:
below hun
Explanation:
Bismuth: cosmetics, alloys, fire extinguishers, and ammunition.
Scandium: bicycle frames, fishing rods, golf iron shafts, and baseball bats.