Answer:
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Explanation:
Pressure exerted by means of an Earth's atmosphere.
<u>Explanation:</u>
Atmospheric pressure is also termed as barometric pressure, that is the pressure exist in the Earth's atmosphere, in other words it is the pressure wielded by the atmosphere's weight.
1 atmosphere = 760 mm Hg
Atmospheric pressure could be measured using the equation,
Atmospheric pressure = Mercury's density × acceleration through gravity × the height of mercury column.
It can be measured or given in terms of Pa, torr. atm, psi, mm Hg and so on.
Rubber tape is used to round sharp edges
Answer:
Vbg = 20.5 m/s
your velocity with respect to the ground Vbg = 20.5 m/s
Explanation:
Relative velocity with respect to the ground is;
Vbg = velocity of train with respect to the ground + your velocity with respect to the train
Vbg = Vtg + Vbt ......1
Given;
velocity of train with respect to the ground;
Vtg = 19 m/s
your velocity with respect to the train;
Vbt = 1.5 m/s
Substituting the given values into the equation 1;
Vbg = 19 m/s + 1.5 m/s
Vbg = 20.5 m/s
your velocity with respect to the ground Vbg = 20.5 m/s
Rotational kinetic energy = Iω²/2 = 10
I = rotational inertia(moment of inertia)
ω= angular speed = 10 s⁻¹
∴ 10 = I(10²)/2
∴ I = 20/10² = 0.2 kg-m²