Answer:
Explanation:
The law of gravitation
Universal gravitational constant [S.I. units]
Mass of Earth [S.I. units]
Mass of a man in a spacecraft [S.I. units]
Earth radius [km]
Distance between man and the earth's surface
ESULT
The spring constant, k, will be equal to 18 N/m. The spring constant is defined as the force-to-displaced-length ratio.
<h3 /><h3>What is the spring constant?</h3>
Spring constant is defined as the ratio of force per unit displaced length.
Given data;
Mass of block,m=0.250 k
Amplitude,A = 0.125 m
Velocity,V=3.00 m/
Spring constant, K=?
The spring constant formula when the spring oscillates at the specified amplitude A:
Hence, the spring constant, k will be 18 N/m
To learn more about the spring constant refer:
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Basically its just an air like fluid with chemicals.... just like air it just goes as it pleases and fills space
Answer:
B. A force that is equal in amount but oppositely directed to the force the lighter child is exerting.
Explanation:
If they are sitting at the same distance away from the pivot yet the seesaw is balanced, the only conclusion is the heavier child is exerting a lower force. This causes the pivot exertion and balances to be equal. The equilibrium of the pivot-seesaw is not affected by the weight because of force exertion.
Answer:
2.10 V
Explanation:
To find the potential difference across the ends of the bar, you take into account that when the bar moves with speed v, in a constant magnetic field, the charges in the wire feels a magnetic force that separate the opposite charges, generating an induced potential difference given by the following formula:
(1)
v: speed of the bar = 11.5 m/s
B: magnitude of the magnetic field = 1.22 T
L: length of the bar = 15.0cm = 0.15m
You replace the values of v, B and L in the equation (1):
hence, the induced potential difference is 2.10 V