It will be
E = mgh.
where h and g are constant thus
m can be written as 4/3πr^3*density
E = 4/3πr^3* density
E? = 4/3π(2R)^3* density
= 4/3π8r^3
thus the e will be 4/3π8r^3* density/4/3πr^3*density nd thus you get 8E ..
Answer:
yes
Explanation:
the coloured candle has been added a chemical compound that will lengthen the burning compared to the white candle .In the real world the coloured candle will be a help economically because it will last longer
Answer:
43.4 s
Explanation:
First of all, we can find the acceleration of the train by using the equation:
where
v = 39.9 m/s is the final speed
u = 18.2 m/s is the initial speed
a is the acceleration
d = 1250 m is the distance covered
Solving for a,
And now we can fidn the time taken, by using the formula:
Answer:
renewable
Explanation:
Renewable resources are natural resources that can be replaced in a relatively short period of time or are virtually limitless in supply. Renewable energy resources include wind, sunlight, moving water, biomass, and geothermal energy.