Answer:D
Explanation:
Given
Same force is applied to each ball such that all have different masses
and Force is given by the product of mass and acceleration
So acceleration of ball A
acceleration of ball B
acceleration of ball C
acceleration of ball D
It is clear that acceleration of ball D is least.
.5mv^2 is the energy equation so .5(25kg)(5m/s)^2 so it’s 312.5 joules
Answer:
D wavelength
Explanation:
The different wavelengths determine the color.
Answer:
1) If a cell or battery is used, the key in the circuit should be left open so as not to drain the battery or cell.
2) Also, leaving the key closed causes current to flow through the circuit, which also causes the temperature of the circuit to increase. Since the resistance of most metals increases with an increase in temperature, the resistance of the circuit will increase, which will then affect the integrity of the whole experiment.
Answer:
The thrust of the jet engine is 4188.81 N.
Explanation:
Given that,
Speed = 260 m/s
Rate in air= 53.3 kg/s
Rate of fuel = 3.63 kg/s
Relative speed = 317 m/s
We need to calculate the rate of mass change in the rocket
Using formula of rate of mass
Put the value into the formula
We need to calculate the thrust of the jet engine
Using formula of thrust
Put the value into the formula
Hence, The thrust of the jet engine is 4188.81 N.