Answer:
Explanation:
<u>Center of Gravity
</u>
It refers to a point where all the forces of gravity of a body make a zero total torque. To find the solution we use the fact that the net force acting on the system boat-man is in every moment equal to zero. It's assured by the first Newton’s law, the center of gravity is at rest or in uniform motion in both moments. From an external viewer's point of view, the center of gravity remains unchanged. The formula to compute it is shown below
Originally, the man sits on the stern of the boat. His weight is applied at a distance xm=4.9 m from the pier (assumed as x=0). The boat is assumed to have a uniformly distributed mass applied at its center, i.e. at xb = 4.9 / 2 = 2.45 m. The center of gravity is located originally at
When the man walks to the prow, the boat moves x = 1.2 m from the pier, so its center is located at a distance
The man is located at
The center of gravity is computed now as
Both centers of gravity are equal, thus
Simplifying
Rearranging
Thus
Hey there!
We know that ,
Voltage , V = Current(I) x Resistance (R)
From ohms law
We are given , current = 3 Amp , Resistance as 2 Amp
Now,
Voltage , V = 3 x 2 =
Amp
Hope this helps :)
Have a good day:)
<span>With a half-life of 700 million years, U-235 would have had twice as much mass at a time 700 MYA. This would have put the mass at 100kg at that time. Going back another 50 million years would be (50/700) or 1/14 of the half-life, or (1/2 * 1/14), or 1/28 of the total mass. 1/28 of 100kg is 3.57kg, so the amount present at the 750MYA mark would be approximately 103.57kg of U-235.</span>
Answer:
Warm water, cold air
In the current climate, a rule of thumb is that the ocean surface temperature should be above 26.5 or 27 degrees Celsius, or 80 degrees Fahrenheit, for a hurricane to make. ... Hurricanes are machines whose job is to maneuver heat from the nice and cozy ocean to the cold atmosphere above
Explanation: