Answer:
petroleum
Explanation:
Petroleum is a gas that we use that just goes into the air whilst water can be recycled and purified, wind never ever goes away, and solar power can be converted into energy.
Answer:
10 times
Explanation:
The weight of the person is defined as the product of mass of person and the acceleration due to gravity of that planet.
Let the gravity is g.
W = m x g .... (1)
Now the value of g depends on the mass of earth when the radius of earth is constant.
g' = 10 g
So, W' = m x g' = m x 10 g = 10 mg = 10 W (from (1)
So, the weight of the person becomes 10 times.
Answer:
Explanation:
q1 = - 4.7 x 10^-9 C
q2 = - 9.7 x 10^-9 C
q3 = 7.2 x 10^-9 C
Potential at the centre of the circle, V = - 1900 V
Let the radius of the circle is r.
So, the potential is given by
r = 0.034 m = 3.4 cm
