KE=(1/2)mv² ⇒ v=√(2KE/m)
Data:
KE=kenetic energy=810 J
m=mass=80 Kg
v=velocity (speed)
v=√(2KE/m)
v=√(2*810 J/80 Kg)=4.5 m/s.
answer: his speed is 4.5 m/s.
Answer:
Vận tốc pháp tuyến tỉ lệ với vận tốc góc nhân với bán kính r. T T T là chu kỳ, ω là vận tốc góc và f là tần số. Chu kì tỉ lệ nghịch với vận tốc góc nhân với hệ số 2 π 2 \ pi 2π và tỉ lệ nghịch với tần số.
<span>So we want to know what is not influencing the phases of the Moon. What influences Moon phases are celestial bodies that are close enough to have enough gravitational force to have an influence. Those celestial bodies would be the Earth and the Sun, since moon itself cant influence itself and all other stars are too far to exert gravitational force. So the correct answer would be the Moon and the stars do NOT have an influence on the Moon phases. </span>
Length* width*height =volume always
So to find R (resistance) you do ohm's law E (volts) over I (current) to find R
So this is 12/30 = 0.4 so the resistance is 0.4