3 years ago

How much force must be applied on a blade of length 4cm and thickness of 0.1mm to exert a pressure of 4000000pa?

Physics

1 answer:

Viktor [21]3 years ago

7 0

Answer:

F= 403429 kpa

Explanation:

Pressure is the product of force and area

Mathematically,

P=F*A -------where F is force and A is area.

A= 40 *0.1 = 4mm² -----convert to m²

A= 4e⁻⁶ m²

P= 4000000 pa

F= P/A = 4000000/4e⁻⁶

F= 403428793.493 pa

F= 403429 kpa

You might be interested in

Which phrase does not describe a mineral?

Jobisdone [24]

The answer is A) specific chemical consumption

3 0

3 years ago

Read 2 more answers

Anyone know which wire matches the other one? for all 4. Need help! Thanks :-)

Fittoniya [83]

red goes to red, black goes to white, yellow goes to green, blue goes to blue.

3 0

3 years ago

If you have a mass of 50 kg on <br> Earth, what is your weight in Newtons?

Bond [772]

Weight on any planet is (mass) x (acceleration of gravity there).

Acceleration of gravity on Earth is about 9.8 meters per second² .
So weight of 50 kg on Earth is (50 x 9.8) = <u>490 newtons</u>.

(That's about 110.2 pounds.)

5 0

2 years ago

Read 2 more answers

A 12 kg barrel is pulled up by a rope. The barrel accelerates at 1.2 m/s2. Find the force exerted by the rope. Show all your wor

IgorLugansk [536]

Answer:

F = 132N

Explanation:

Let the pulling force be F

Given the mass of the barrel is 12 Kg and The acceleration is 1.2 m/ $sec^2$

We know that Net Force = $mass\times acceleration$

Now net force = F - mg

F - mg = ma

F = mg + ma

F = m(a+g) = $12\times (1.2 +9.8)=132N$

Note that there will be a downward force acting on the body which is equal to mg

3 0

3 years ago

Which explains whether boron or arsenic is the dopant most likely used in the semiconductor layer marked with +?

liubo4ka [24]

Answer:

D) This layer is the emitter of a PNP transistor, so it could include boron.

Got it on quiz! Good luck!

Explanation:

4 0

2 years ago