PHYSICS HIGH SCHOOL

A piston above liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external pressure on the upper surface of the liquid in KPA

Answers

Answer 1
Answer:

Answer:

3.43 kPa

Explanation:

Pressure is defined as the ratio between the force applied and the area of the surface on which the force is applied:

p=(F)/(A)

in this problem, the force corresponds to the weight of the load, which is given by the product between its mass (350 kg) and the acceleration due to gravity (9.8 m/s^2):

F=mg=(350 kg)(9.8 m/s^2)=3430 N

And since the area on which this force is applied is A=1 m^2, the pressure exerted on the upper surface of the liquid is

p=(F)/(A)=(3430 N)/(1 m^2)=3430 Pa = 3.43 kPa
Answer 2
Answer: Pressure = force / area

I assume that 350kg is the mass 
Therefore, 

350 x 9.8 (gravity) = 3430N

3430 / 1 = 3430Pa

3.43 KPa

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A student pedaling a bicycle applies a net force of 400 N. The mass of the rider and the bicycle is 25 kg. What is the acceleration of the bicycle and the rider?

Answers

The acceleration is 16 m/s^2

Explanation:

We can answer this question by using Newton's second law, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

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Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

Answer:

The acceleration is

Explanation:

We can answer this question by using Newton's second law, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

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Answers

Answer:

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Explanation:

100% correct

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Answers

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Explanation:

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Answers

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Answers

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Explanation: hope this helps :)
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