Answer:
the new ppresure 1.89 10⁵ Pa
Explanation:
In this case we assume that the air is compiled as an ideal gas, which is described by the expression
P V = nR T
Where P is the pressure and T is the absolute temperature, let's write this expression for the two points that tell us
P1 = (nR / V) T1
P1 / T1 = nR / V
P2 = (nR / V) T2
P2 / T2 = nR / V
With the constant on the right side is the same we can match the two equations
P1 / T1 = P2 / T2
Let's take the tempera to absolute
T1 = 35.0 + 273.15
T1 = 308.15K
T2 = -40.0 + 273.15
T2 = 233.15K
Let's clear and calculate the pressure (P2)
P2 = P1 T2 / T1
P2 = 2.50 10⁵ 233.15 / 308.15
P2 = 1.89 10⁵ Pa
Answer:
2N
Explanation:
Given that a student pulls down with a force of 40 N on a rope that winds around a pulley of radius 5 cm. find the torque?
Solution
Using the formula
Torque = Force × radius
I.e
Torque = F r
Where
F = 40N
r = 5 cm = 5/100 = 0.05m
Substitute all the parameters into the formula
Torque = 40 × 0.05
Torque = 2 N
Therefore, the torque on this scenario is 2 N
Answer:
a) 1.725*10^5 N
b) 3.83*10^3 N
c) i) 173.24 kN
c) ii) 4.57 kN
Explanation:
See the attachment for calculations
Answer:
It is primarily due the Sun.
Explanation:
Sun is the ultimate source of energy.
Due to the heat of Sun, the atmosphere heats up unevenly. Due to which there is a temperature difference between the two regions. As the temperature difference is maintained, the air flows, i.e., atmosphere is moving.
Similarly, water gets heat up unevenly in oceans. Due to which a temperature difference is maintained between two points in the ocean and thus the oeans are moving constantly.
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