Answer:
A
Explanation:
Instantaneous speed is the magnitude of instantaneous velocity
Answer:
A Gravitational potential energy
Bkinetic Energy
CGravitational potential energy
Dnone of this
Ans3737
Explanation
She and and ann nah and didn't send anything else you want to know if I can do it
Answer:
F₁ = 10.64 N
Explanation:
The pressure is transmitted equally from the first piston to the second piston:
where,
F₁ = Force applied by compressed air on first piston = ?
F₂ = Weight lifted by second piston = 66.5 N
r₁ = radius of first piston = 10 cm
r₂ = radius of second piston = 25 cm
Therefore,
<u>F₁ = 10.64 N</u>
Answer:
η = 0.5 = 50%
Explanation:
The efficiency of the power cycle is given by the following formula:
where,
where,
η = efficiency = ?
Q₁ = heat received from hot reservoir = 1000 KJ
Q₂ = heat discharged to cold reservoir = 500 KJ
Therefore,
<u>η = 0.5 = 50%</u>