Answer:
776.6 w
1.04 hp
Explanation:
given:
Mass, m = 190kg
height change, h = 25m
time elapsed, t = 60 s
acceleration due to gravity, g = 9.81 m/s²
Potential energy required raising 190 kg of water to a height of 25m
= mgh
= 190 x 9.81 x 25
= 46,597.5 J
Power required in 60 s
= Energy required ÷ time elapsed
= 46,597.5 ÷ 60
= 776.6 Watts (Use conversion 1 W = 0.00134102 hp)
= 776.6 w x 0.00134102 hp/w
= 1.04 hp
Answer:
J Two objects carry initial charges that are qi and q2, respectively, where |q2| > |qi|. ... [45 ptsj A particle is uncharged and is thrown vertically upward from ground level with a ... The particle is then given a positive charge +q and reaches the same maximum height h when thrown vertically upward with a speed of 40.0 m/s.
Explanation:
Answer:
See below
Explanation:
Things generally expand when heated ....so <u>volume increases</u> while mass remains the same .....this will cause the value of density to decrease
Answer:
The couch will remain stationary
Explanation:
Friction is the force that resist/opposes the motion. It is the force that has to e overcome before an object can move.
Since the frictional force of 50 N is required before the couch can move, applying 25 N can not overcome the frictional force of 50 N, so the couch will remain stationary.A force greater than 50 will be require to set the couch in motion
