Answer:
The gravitational potential energy of that rock is 174371.4 J.
Explanation:
Given
To determine
We need to find the gravitational potential energy of the rock
We know that the potential energy of a body is termed as the stored energy due to its position.
One kind of energy comes from Earth's gravity — Gravitational potential energy (GPE).
Gravitational potential energy (GPE) can be determined using the formula
![GPE = mgh](https://tex.z-dn.net/?f=GPE%20%3D%20mgh)
where
is the mass
is the gravitational acceleration which is equal to g = 9.8 m/s²
is the height
- GPE is the Gravitational potential energy
now substituting m = 59.31, h = 300 and g = 9.8
![GPE = mgh](https://tex.z-dn.net/?f=GPE%20%3D%20mgh)
![=59.31\times 9.8\times 300](https://tex.z-dn.net/?f=%3D59.31%5Ctimes%209.8%5Ctimes%20300)
J
Therefore, the gravitational potential energy of that rock is 174371.4 J.
Answer:
Hydrogen nuclei fuse to form a larger nucleus, and a small amount of mass is converted into energy.
Answer:
Fc = 89.67N
Explanation:
Since the rope is unstretchable, the total length will always be 34m.
From the attached diagram, you can see that we can calculate the new separation distance from the tree and the stucked car H as follows:
L1+L2=34m
Replacing this value in the previous equation:
Solving for H:
![H=\sqrt{52}](https://tex.z-dn.net/?f=H%3D%5Csqrt%7B52%7D)
We can now, calculate the angle between L1 and the 2m segment:
![\alpha = atan(\frac{H/2}{2})=60.98°](https://tex.z-dn.net/?f=%5Calpha%20%3D%20atan%28%5Cfrac%7BH%2F2%7D%7B2%7D%29%3D60.98%C2%B0)
If we make a sum of forces in the midpoint of the rope we get:
where T is the tension on the rope and F is the exerted force of 87N.
Solving for T, we get the tension on the rope which is equal to the force exerted on the car:
![T=Fc=\frac{F}{2*cos(\alpha) } = 89.67N](https://tex.z-dn.net/?f=T%3DFc%3D%5Cfrac%7BF%7D%7B2%2Acos%28%5Calpha%29%20%7D%20%3D%2089.67N)
Answer:
False
Explanation:
Heat capacity;
The ability of absorbing the heat is know as heat capacity of the substance.In other words we can say that the ability to retain the heat without changing its temperature is known as heat capacity.
The specific heat of water (liquid) is 4.1813 KJ/kgK andf the specific heat of ammonia (liquid) is 4.7 KJ/kgK.
So we can say that the above given statement is False.
Therefore answer is --
False
Is where scientist easily handle very small numbers or very large numbers. It best that way.