Isaac attempts to kick a field goal from the 40 yard line. He kicks the football at 38 m/s at a 50° angle above horizontal. If t
1 answer:
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Answer:
2.943 J
Explanation:
Data:
acceleration due to gravity, g = 9.81 m/s²
mass of sand = 0.5 kg
distance = 0.6
Thermal energy = the energy possessed by the falling sand
The force of sand = ma
=
However, the energy is given as the force multiplied by the distance, so
E =fd
Therefore, the thermal energy is 2.943 joules
Answer:
Explanation:
The rate of volume flow out of tank can be expressed as:
where,
dV/dt = Volume flow rate
A = Cross-sectional area of outlet = πd²/4
d = diameter of circular outlet
dL = Displacement covered by water
dt = time taken
but we know that:
Velocity = υ = displacement/time = dL/dt
Substituting the values of "dL/dt" and "A" in the equation, we get:
This is the expression for volume flow rate dV/dt, on terms pf v, d.