Answer:
The force the bat applies to the ball is 340 N
Explanation:
given information:
mass of the ball, m = 400 g = 0.4 kg
initial velocity, 
= 30 m/s
final velocity, 
= 38 m/s
time, t = 80 ms = 0.08 s
the correlation between the change in momentum and the force is shown by the following equation
ΔP = FΔt
F = ΔP/Δt
where,
Δp = mΔv
= m(
)
= m(
)
= - because in opposite direction, thus
F = ΔP/Δt
= m()/Δt
= (0.4)(38+30)/0.08
= 340 N
Answer:
So, instead of fossil fuels, the magnetic field thats creatd by electrified coils in the guideway walls, and on the track combine to propel the train. Just think of it as playing with magnets. The opposite attract while if you put norh to north or south to south, they will push away from each ther. This is just the basic principle of electromagnetic propulsion
Explanation:
Answer: 109.89 Nm
Explanation:
The maximum torque will be calculated as the force multiplied by the perpendicular distance. This will be:
Torque = force × perpendicular distance
torque = 333 × 0.33
= 109.89 Nm
Answer:
h = 2.15 m
Explanation:
We can use the third equation of motion here to find out the height from which the cat fell that is the height of the refrigerator.
where,
g = acceleration due to gravity = 9.81 m/s²
h = height of refrigerator = ?
vf = final speed of cat = 6.5 m/s
vi = initial speedof cat vertically = 0 m/s
Therefore,
<u>h = 2.15 m</u>
1. Yes it is most likely that aliens exist because we have a whole universe yet to discover and us humans can’t be the only species alive
2. Blue light travels faster than any other color in the color prism and is scattered throughout more in the sky than other colors
3.
