Answer:
Q = 1128.6 [kW] - kilowatts
Explanation:
To calculate the amount of energy required, the following expression should be used:
Q = 15*4.18*(38-20)
Q = 1128.6 [kW]
Answer: a few ton
Explanation:
Average-sized star like sun eave behind white dwarfs and they are almost of the same size as the earth due to gravity .
A teaspoon of white dwarfs is about 15tons.
A chemical substance, element or compound. Homogeneous mixtures are complex and not easily broken down.
Answer:
37.5 m/s
Explanation:
Using the law of conservation of energy, potential energy equals kinetic energy hence
Therefore
where g is the acceleration due to gravity, m is the mass of the object, h is the height and v is the speed of the roller coaster
Taking g as 9.81 then