Answer:
Speed = 10 km/hr
Explanation:
Speed = Distance / Time
Since we have to convert it into minutes to hours ( because it is km/hr )
45 minutes = 0.75 hours
Therefore,
Speed = 7.5 / 0.75
= <u>10 km/hr </u>
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<u>Hope it helps!</u>
Answer:
Work done,W= 250J
Displacement , s = 60
We know that, Work done = Force x displacement
i.e , W = Fxs
250 J = F x 60m
F = 250/60
=4.16 N
Hence , 4.16 N of Force is applied on the body.
Saturn is very commonly known for its rings
Answer:
(c) Intrapulmonary pressure
Explanation:
Intrapulmonary pressure is the pressure of air within the alveoli, it changes with the different phases of breathing, and because it is connected to the atmosphere through the throat if eventually equalizes with the atmospheric air pressure in the environment.