Power = W/t = mgh/t = 49*9.8*5/20 = 120.05W
Answer:
to go 20 m/s means that the body travels 20 metres of distance in each second.
Hope it will help :)
According to newtons 3rd law, every force has an equal and opposite force, which means that the answers for a and b should be the same.
you might be knowing the equation of F which is
F = G(m1)(m2)/(r^2) (<em> this formula may be wrong, look it up on google)</em>
G is the universal gravitation constant, just google for the exact value, the value should be something like 6.67E-11
m1 is the mass of an apple
m2 is the mass of an orange
r is the distance between them ( should be squared)
The Thrust on the rocket is 1.434 MN.
To calculate the thrust of a rocket, we use the formula below
Thrust: This is the force that moves an aircraft through the air.
⇒Formula
- T = M'×v.................... Equation 1
⇒ Where:
- T = Thrust of the rocket
- M' = Fuel ejection rate
- v = gas exhaust velocity
From the question,
⇒ Given:
- M' = 239 kg/s
- v = 60 km/s = 6000 m/s
⇒ Substitute these values into equation 1
- T = 239(6000)
- T = 1434000 N
- T = 1.434 MN
Hence, the Thrust on the rocket is 1.434 MN.
Learn more about Thrust here: brainly.com/question/13501791
C. 1 Joule
Explanation:
Given:
Voltage = 1V
Quantity of charge = 1coulomb
Unknown:
Energy = ?
Solution:
The amount of work done is often related to the energy in a system.
In this electrical circuit, work done is the voltage that moves a particular charge.
work done = q x v
q is the quantity of charge
v is the voltage
the potential difference in circuit is the driving force of charges.
Work done = energy = qv
inputting the parameters;
Work done = 1 x 1 = 1J
learn more:
Electrochemistry problems brainly.com/question/6953278
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