Answer:
Science is changing because little by little scientists descover new things.
Explanation:
Discovery
Hope this helps:)
Answer:
option (b)
Explanation:
Let both teh springs are extended by y.
For first spring
m1 x g = k1 x y
where, m1 is the mass of first ball and k1 be the spring constant of first spring
.... (1)
For second spring
m2 x g = k2 x y
where, m2 is the mass of second ball and k2 be the spring constant of second spring
.... (2)
The frequency of the body is given by
So, from equation (1) and equation (2), the ratio of k is to m is same, so the frequency of both the balls is same.
Answer:
"H" is a chemical symbol and "H2" is chemical formula.
Pe = m • g • h
= 100 • 9.8 • 20
= 19,600 or 1.96 x 10^4
Answer:
Spring Constant = 279.58 N/m
Explanation:
We are given;
Mass; m = 2.05 x 10^(-2) kg = 0.0205 kg
Distance of compression; x = 8.01 × 10^(-2) m = 0.0801 m
Maximum height; h = 4.46 m
The formula for the energy in the spring is given by;
E = ½kx²
where:
k is the spring constant
x is the distance the spring is compressed.
Now, this energy of the spring will be equal to the energy of the pellet at its highest point. Energy of pallet = mgh So;
½kx² = mgh
Plugging in the relevant values, we have;
½ * k * 0.0801² = 0.0205 * 9.81 * 4.46
0.003208005k = 0.8969
k = 0.8969/0.003208005
k = 279.58 N/m