Answer: Kinetic Energy is the energy of mass in motion. In a rescue mission, kinetic energy is the most used energy to carry out the rescue operation successfully. ... The machineries involved in the rescue mission like helicopters, submarines, lifeboats are all examples of kinetic energy.
Answer:
Coefficient of friction is
Ū = 0.31
Explanation:
T2 = T1* e^(ūơ)
Where T2 = 7500n = tension in the belt, T1 = 150n = reaction force,
ū = coefficient of friction
Ơ = 2pai * N
Where N = number of turns = 2
Ơ = 4pai
7500 = 150e^(ū*4pai)
50 = e^(ū *4pai)
lin 50 = 4pai * ū
Ū = 3.91/4pai
Ū = 0.31
Answer:
As the car travels up the coaster it is gaining potential energy.
Explanation:
Because It has the greatest in amount of potential energy at the top of the coaster. when the car travels down the roller coaster it obtains speed and kinetic energy.
Given data :
Velocity of radar
signal, v = Velocity of light = 3 x 10^8 m/s
Greatest distance
between Venus and Earth d1 = 0.47 AU = 0.47 AU (a.5 x 10^11 m / 1 AU) =
7.1x10^10 m
Closest distance between
Venus and Earth, d2 = 0.28 AU = 0.28 AU (1.5 x 10^11 m / 1 AU)= 4.2 x 10^10 m
The time take by radar signal
to travel from Earth to Venus and back when Venus is brightest is calculated as
T1 = 2d1/v = 2(7.a x
10^10 m / 3 x10^8 m/s) = 473 s
The time taken by radar
signal to travel from Earth to Venus and back when Venus is closest is
calculated as
<span>T2 = 2d1/v = 2 (4.2 x
10^10 m) / 3 x 10^8 m/s = 280 s</span>
As depth increases underwater, colors disappear due to water's ability to ... takes a diver one hour to breath all the air from a scuba tank at the surface, ...
