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Power of a car weighing

Power of a car weighing 1200kg is 134.05hp and its efficiency is 90%. How long will it take to raise of the car to 20m/s from
1. 2 answers
2. asked by RBAS
3. 599 views
A passenger weighing 800 N is inside an elevator weighing 25000 N that rises 30 m in exactly 1 min. How much power is needed for
1. 2 answers
2. asked by zach
3. 623 views
The method of estimating total body fat by weighing the individual on a standard scale and then weighing him or her submerged in
1. 1 answer
2. 39 views
A decorative piece consists of a 20cm long uniform brass rod weighing 4N and two ornaments, one weighing 6N and one weighing
1. 1 answer
2. asked by Ralph
3. 717 views
experiment: Gravimetric determination of moisture in fertilizer samples1. What are the advantages of weighing by difference to
1. 0 answers
2. asked by smiley
3. 727 views
A pure organic compound weighing 947.4mg was heated in a stream of oxygen. The effluent gas was swept successively through a
1. 2 answers
2. asked by vivian
3. 896 views
A stonemason lifts a small boulder weighing Fw = 80 N from the ground onto a height = 1.50 m wall in the time t = 2.0 s.Using
1. 2 answers
2. asked by harley
3. 1,914 views
1) Two people sit on a park bench 6.0 ft long, weighing 160 lb. A boy weighing 75lb sits directly over the legs on the left
1. 4 answers
2. asked by aakash
3. 857 views
An elevator weighing 400kg is to be lifted up at a constant velocity of 0.6m/s for this purpose a motor of required horse power
1. 2 answers
2. asked by Faizankhan
3. 1,346 views
Which has more potential energy?A.A hammer weighing 700.0 g raised to 3.0 m. B.A rock weighing 1 800 g raised to 2.0 m. C.A nail
1. 1 answer
2. asked by skyler
3. 400 views