I could tell you the energy if you can tell me the acceleration and height above earth's surface.
The right answer is 280 N.
When a woman stands with two feet on a scale, the scale reads 280 N and when she lifts one foot, the scale also reads 280 N because the weight of the other leg also comes on the one leg.
First, the whole weight of the body depends on two feet but when the second feet is lifted, the weight of the whole body including the lifted feet comes on the single feed so we can conclude that the right answer is 280 N
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Oa
Atmosphere
Ob
Cryosphere
Oc
Geosphere
Od
Hydrosphere
The reaction of zinc withhydrochloric acid. Zn + 2HCl → H2 + ZnCl2. In here, zinc, an element, willreplace the halogen chlorine in the compound hydrochloric acid to form ahydrogen gas and zinc chloride molecule.
Answer:
I=P/U=6/12=0.5(A)
Explanation: P=UI ( CÔNG SUẤT = HIỆU ĐIỆN THẾ NHÂN VỚI C Đ D Đ)
The velocity of a 500-kilogram elevator that has 4,000 joules of energy is 4m/s.
KINETIC ENERGY:
K.E = ½m.v²
Where;
m = mass of the elevator (kg)
v = velocity of the elevator (m/s)
V = √K.E × 2/m
V = √4000 × 2/500
V = √8000/500
V = √16
V = 4m/s
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