Yes, three good answers:
-- <span>a measure of how fast something is moving,
-- always measured in terms of a unit of distance divided by a unit of time,
and
-- the distance covered per unit time.
</span>
Answer:
a. arranging from least to higher pressure exerted by object B ,D A, C
b object B exert maximum pressure on surface because pressure is indirectly proportional to the surface area from the above figure we can easily conclude that object a have least surface area so, it exert more pressure on surface.
c.object C exert minimum pressure on surface because pressure is indirectly proportional to the surface area from the above figure we can easily conclude that object a have large surface area so, it exert less pressure on surface.
Explanation:
Answer:
V = 308.06 miles/hour
θ = 13.13° west of north.
Explanation:
Airplane speed = V₁ = 300 miles/hour
Wind speed = V₂ = 70 miles/hour
Resultant speed of the plane = V = ?
As airplane is trying to fly straight North and wind is blowing toward the west. So the angle between airplane velocity and wind velocity is 90°.
By Pythagoras Theorem
V =
V = 
V = 308.06 miles/hour
θ = tan⁻¹(70/300)
θ = 13.13° west of north.
Answer:
4. The pressure decreases and the temperature increases.
Explanation:
PV = nRT
Rearrange:
V/R = nT/P
V is constant, so:
k = nT/P
kP = nT
n is increasing.
If P decreases, T must also decrease.
