Answer:
No
Explanation:
Work Done is Force x Distance.
You are exerting a force to hold the piece of furniture in place, however work is not being done as you are not moving it. (as you are holding it in place)
Answer:
7.4 x 10⁻⁵ T.
Explanation:
Emf induced = BLv
Where B is magnetic field , L is length of rod or any other object moving in magnetic field and v is velocity of moving rod.
Here B = 56 x 10⁻⁶ T
L = 88 X 10⁻² m
v = 1.5 m/s
emf induced = 56 x 10⁻⁶ x 88 x 10⁻² x 1.5
= 7.4 x 10⁻⁵ T.
Well, in order to figure out the answer is to divide until you figure out how many miles they went per second. If it takes 5 seconds to reach 50 miles per hour it took 10 seconds per every 10 miles meaning each mile took 1 second. (Not actually possible but the answer) So, If it finished a 100 mile trip in 2 hours it took an hour for 50 miles. If it took 1 hour for 50 miles divide 60/50 which gets you 1.2 so it took 1.2 miles per minute meaning the car went 120 miles per hour I believe. I hope this helps :)
Answer:
a) pressure means force acted on a body per unit area
Answer:
At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. ... Since most of the atmosphere's molecules are held close to the earth's surface by the force of gravity, air pressure decreases rapidly at first, then more slowly at higher levels.
Explanation:
