A. All living things and objects
Answer:
Mass of the airplane, m = 562.5 slugs
Explanation:
Given that,
Weight of the airplane, W = 18,000 lbs
The acceleration due to gravity is,
Let m is the mass of the airplane. The weight of an object is equal to the product of mass and acceleration due to gravity as :
W = m × g
m = 562.5 slugs
So, the mass of the airplane is 562.5 slugs. Hence, this is the required solution.
Answer:
<em>The gauge pressure at this height is 304.11 kPa</em>
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Explanation:
Height of water is 31.0 m
We know that gauge pressure is the pressure by which a given pressure exceeds the atmospheric pressure. Normally, the absolute pressure due to this height of water would have been the atmospheric pressure plus the gauge pressure due to this height of water. In the case, we only consider the gauge pressure due to the height of water, since the atmospheric pressure is considered the datum pressure.
Gauge pressure of water = ρgh
where ρ is the density of water = 1000 kg/m^3
g is the acceleration due to gravity = 9.81 m/s^2
h is the height = 31.0 m
Gauge pressure of the water = 1000 x 9.81 x 31 = 304110 Pa = <em>304.11 kPa</em>
The weight of anything in any place is
(mass of the thing) x (acceleration of gravity in that place).
-- On Earth, the acceleration of gravity is about 9.807 m/s²
Weight of 19 kg of mass is (19 kg) x (9.807 m/s²) = <em>186.3 newtons</em>
-- On the Moon, the acceleration of gravity is about 1.623 m/s²
Weight of the same 19 kg of mass is (19 kg) x (1.623 m/s²) = <em>30.8 newtons</em>
Answer:
velocity 1 second later = 59.8 m/s
Explanation:
Velocity final = Velocity initial + acceleration • time
Velocity final = 50m/s + 9.8m/s/s • 1s
Velocity final = 59.8 m/s