Answer:
F_net = B -W
The forces of action and reaction are the weight of the balloon that is the force of attraction of the Earth and the outside so the balloon pulls the earth that has an upward direction and is applied to the planet
Explanation:
A hot air balloon is subjected to the force of its weight directed towards the center of the Earth. The thrust due to the cold air released, this thrust is directed upwards.
If we assume that the balloon rises at a constant speed
F_net = B -W
F_neta = ρ g V_body - ρ_body g V_body
The forces of action and reaction are the weight of the balloon that is the force of attraction of the Earth and the outside so the balloon pulls the earth that has an upward direction and is applied to the planet
The answer should be ''Decrease'' to fill in the blank because squirrels usually live in trees and get food from there so without a place to live when its raining and no food to survive, than they would die and lessen their population so that's why decrease is the answer.
Answer:
The mass of 20 cm of the metal is 360 grams.
Explanation:
Relative density or specific gravity is the ratio of the density of a substance to the density of a standard; usually water for a liquid or solid, and air for a gas. It has no units.
Given, relative density of a metal is 19 and volume of the metal is 20 cm.
We know that, Mass= Volume X Density. So, mass is 19 X 20= 380 grams.
So, weight in water = true weight- upthrust
Desired answer is 380- 20 X 1= 360 grams.
Answer:
The energy source which can cause the turbine (wooden wheel) to spin and generate electrical energy is hydro-energy source.
Explanation:
The energy source which can cause the turbine (wooden wheel) to spin and generate electrical energy is hydro-energy source. Hydro energy source, is the energy source gotten from the force of falling water.
Hydro energy causes the turbine to spin converting it mechanical energy and finally to electrical energy using a generator.
Force of falling water (hydro-energy source) ------>spinning of turbine (mechanical energy) ---------------> electrical energy
You should put merry christmas ya filthy animal