When water freezes, it's volume INcreases, which naturally results in a DEcrease in it's density. That's why cubes and bergs float.
I'm pretty sure that water is the only known substance that behaves this way. Which is lucky for us, because if it didn't, then life on Earth would be impossible. Oceans and lakes would freeze from the bottom up. Once! And then they would never thaw, because the sun could never cut through the layer of warm water on top, to melt the ice below.
<span>Assuming that everything remains constant, after one million years, Mount Marshak would be 5.1km tall. This is because the mountain would be uplifted by 1.3km after a million years but also eroded 1.5km after a million years. The difference is 0.2km in the direction of erosion. This means the mountain would be 0.2km smaller than it was before. 5.3-0.2=5.1.</span>
You can apply conservation of angular momentum since there is no external torque on the system. I have done that in the picture below. Remember to always convert to correct units. Just plug numbers in on what I’ve given you and you should get the final angular speed
Answer:
A. Period is halved
Explanation:
The period of a pendulum swing, T, is given in terms of mass as:
where I = moment of inertia
m = mass of the pendulum
g = acceleration due to gravity
h = Length of string
If the mass is increased by a factor of 4, that means:
M = 4m
(M = new mass)
The new period of the pendulum, , will now be:
Hence, the period is halved.
The loop is in the vertical plane and normal to the north direction. The current in the loop can be calculated with the equation : I=2BR,
where B is the direction (B=0.7G) and R is the radius,
So,
I=2*7*10^(-5) x 0.1/4pi*1-^(-7) Ampers