Answer:
Explanation:
As per given figure let say the tip of the shadow is at distance "x" from the base of the lamp
so here we have
so we have
now we have
Answer:
<h2>False.</h2>
Explanation:
A fossil fuel is a fuel formed by natural processes. Fossil fuels typically have an age of millions of years, and sometimes more than 650 million years. It cannot process to create fossil fuel again.
<h3>Further Explanation:</h3><h3 />
A nonrenewable resource is a natural substance that is not replenished with the speed at which it is consumed. It is a finite resource.
Nonrenewable resources come from the Earth. Humans extract them in gas, liquid, or solid form and then convert them for their use, mainly related to energy. The reserves of these substances took billions of years to form, and it will take billions of years to replace the supplies used.
The solution would be like this for this specific problem:
Given: 175 g/L
1 gram/liter = 0.06242796 pound/cubic
foot
175 g/L * 0.06242796 pound/cubic foot
= 10.924893 lb/ft3
So, a foam material has a density of 10.924893 lb/ft3 in
units of lb/ft3.
Answer:
3.036×10⁻¹⁰ N
Explanation:
From newton's law of universal gravitation,
F = Gm1m2/r² .............................. Equation 1
Where F = Gravitational force between the balls, m1 = mass of the first ball, m2 = mass of the second ball, r = distance between their centers.
G = gravitational constant
Given: m1 = 7.9 kg, m2 = 6.1 kg, r = 2.0 m, G = 6.67×10⁻¹¹ Nm²/C²
Substituting into equation 1
F = 6.67×10⁻¹¹×7.9×6.1/2²
F = 321.427×10⁻¹¹/4
F = 30.36×10⁻¹¹
F = 3.036×10⁻¹⁰ N
Hence the force between the balls = 3.036×10⁻¹⁰ N
Answer:
An ecosystem is a community of living things and their non-living environment, and may be as large as a desert or as small as a puddle. An ecosystem must contain producers, consumers, decomposers, and dead and inorganic matter. All ecosystems require energy from an external source – this is usually the sun.
Explanation:
