Answer:
When the cart arrives at any place that's 1.0 meter higher than where it started, its potential energy will be
(9.8) · (its mass on kilograms) Joules .
Potential Energy is given by the formula mass x gravity x height. The starting height is irrelevant in its calculation. The potential energy depends on the mass of the object, gravity and the elevated height.
The potential energy of an object is calculated by the formula Potential Energy = mass x gravity x height. Whenever the height of an object increases, its potential energy will increase as well provided mass and the gravitational field (g) remain constant. Here, the starting height being 0.0 m is irrelevant to the calculation of potential energy at 1.0 m height. If the mass of the cart and the value of gravity (usually taken as 9.8 m/s2 on Earth's surface) are known, you can substitute those values into the formula to find the potential energy.
e.g. If the mass of the cart was 2 kg, the potential energy at a height of 1.0 m would be 2 kg x 9.8 m/s
2
x 1.0 m = 19.6 joules.
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Answer:
3.2 hours
Explanation:
96÷30=3.2
so it should take 3.2 hours
Answer:
Kinetic Energy = 1/2 mass*velocity^2
K=1/2mv^2
Therefore if you reduce the speed of an object by 1/2, K reduced to 1/4 its value.
Answer:
As we know that heat given to a substance is given by the formula as
now we know that
now we know that aluminium and water both are of same mass and both are given same amount of heat so the value of Q and m will be same.
So here we can say that change in temperature depends inversely on the specific heat capacity.
So here if more specific heat capacity then there will be less change in temperature.
so we can conclude that since temperature of aluminium increases more so the specific heat capacity of aluminium will be less than that of water.