Answer: What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon.
Explanation:
Answer:
F = 1.2x 10^6 N
Explanation:
The explanation is in the attached file
The energy used in the process is used to rebound the ball to a certain height. The efficiency of the first rebound is equal 1.15/1.50 or 0.77. Hence the not used is the equal to the other part of the fraction where ball did not fully rebound to the original height. In this case, the equation is (1-0.77)^x = 1 - 0.93 where x is the number of rebounds until 93% of the energy is lost. x is equal to approx 10 rebounds.
Answer:
43.76%
Explanation:
The air density at the sea level ρ_s = 1.25 kg/m^3.
also, air density at the top of the mountain where ρ_t = 0.547 kg/m^3.
taking temp as --50° C and pressure as 1/3 of P_atm.
therefore, t percent is the air density at the summit of Mount Everest relative to the air density at sea level
= 
=
=43.76 %
