The force it would take to accelerate a 900-kg car at a rate of 3 m/s2 is

A force of 38.7 N is applied to the master cylinder of a hydraulic brake system. The cylinder has an area of 7.61 cm^2. The forc

devlian [24]

Answer

Total force exerted by brake cylinders is 249.69 N

Explanation:

We have given that force $F_1=38.7N$

And area of the cylinders $A_1=7.61cm^2=7.61\times 10^{-4}m^2$

We have to find the total force

We have given total surface area $A_2=49.1cm^2=49.1\times 10^{4}m^2$

From pascal's law we know that $P_1=P_2$

And we know that $P=\frac{F}{A}$

So $\frac{F_1}{A_1}=\frac{F_2}{A_2}$

$\frac{38.7}{7.61\times 10^{-4}}=\frac{F_2}{49.1\times 10^{-4}}$

$F_2=249.69N$

5 0

3 years ago

1)A rocket expels gas at high speed for a short period of time. We are going to treat the rocket as being far away from any grav

lesya [120]

GhiIzbznzkzjakakkqkhshsuz just juice hhahah

5 0

3 years ago

A standard 12 V car battery has an ampere-hour rating of 40 Ah, whereas a heavy-duty battery has a rating of 60 Ah. How would yo

stiv31 [10]

Answer:

Explanation:

Ah is a unit of charge .

A battery with 12 V and charge capacity of 40 Ah will have energy content

= volt x charge

volt = 12 V

Charge = 40 Ah

= 40 x 60 x 60 A.s

= 144000 coulomb

energy content = 12 x 144000

= 1728000 J

energy content of heavy duty battery

= 12 x 60 x 60 x 60

= 2592000 J

Ratio = 1728000 / 2592000

= 2 / 3

Current can not be compared as current depends upon the resistance of appliance used . As resistance of appliance is unknown , current can not be compared.

3 0

4 years ago

If a star's radiation peaks in the ultraviolet region of the spectrum, you would not be able to see it. true or false.

slega [8]

the answer would be false

hope I helped and goodluck

:)

6 0

3 years ago

Read 2 more answers

A series of pulses, each of amplitude 0.1m , is sent down a string that is attached to a post at one end. The pulses are reflect

sp2606 [1]

The net displacement at a point on the string where the pulses cross is 0.2 m.

The term "displacement" refers to a shift in an object's position. It has a magnitude and a direction, making it a vector quantity. An arrow pointing from the starting point to the finishing point serves as its symbol.

A string that is connected to a post at one end is used to transmit a sequence of pulses, each measuring 0.1 meters in amplitude.

At the post, the pulses are reflected and return along the string without losing any of their amplitude.

Now, let's say the ends are free.

There is no inversion on reflection if the end is free. The amplitude at their intersection is 2A.

Now, since A = 0.1 m

Then, 2A = 2(0.1) = 0.2 m

As a result, the net displacement at the string's intersection of two pulses is 0.2 m.

The correct option is (c).

Learn more about amplitude here:

brainly.com/question/3613222

#SPJ4

4 0

2 years ago