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2 years ago

What is the average velocity of the particle from rest to 9 seconds?

1 answer:

7 0

Answer: v = 2[m/s]Explanation:This avarage velocity can be found with the ... B. 2 meters/ second. C. 3 meters/second. D. 4 meters/second. 1.

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Consider a product with three components in series, with reliabilities of 0.90, 0.80, and 0.99 for components A, B, and C, r

Feliz [49]

Answer:0.853

Explanation:

Given

Reliability of A is 0.90

Reliability of B is 0.80

Reliability of C is 0.99

B has a backup with reliability of 0.8

i.e. B has a component in parallel to it.

A,B& C is series.

B actual reliability is

$R_b=1-\left ( 1-0.8\right )\left ( 1-0.8\right )$

$R_b=0.96$

Thus $R_{net}$ is given by

$R_{net}=R_A\times R_B\times R_C$

$R_{net}=0.9\times 0.96\times 0.99$

$R_{net}=0.8553$

5 0

3 years ago

A boy 1m tall looks at the swimming pool, which appears to be 75 cm deep, according to the people around him. He finds himself a

Leto [7]

When you look vertically downwards into a swimming pool full of water the bottom of the pool seems closer to you than it really is. The apparent depth at this point can be worked out using the formula:

Apparent depth = Real depth/Refractive index of water

However as you look towards the end of the pool the bottom seems to curve upwards – we are thinking about a pool of constant depth to start with.

If the depth of the pool really does change then the situation becomes more complex and you would need to allow for that when drawing the diagram

4 0

3 years ago

When current first leaves the battery, how much voltage does it have

rjkz [21]

Answer:

depends on the voltage of battery

Explanation:

for example if you connect a battery of 6V,6V will be provided

8 0

2 years ago

What conditions would have to exist in order for a space station to support life

amid [387]

Answer:

Mechanical life support system

Explanation:

Mechanical life support system is one which allows humans to survive on places or conditions which are not natural to their survival so by the help of mechanical devices humans can survive in places like underwater or in space.

The life support system may not only provide water, air and food but it should also keep a proper check on the maintenance of body pressure, temperature, management of the waste product and the absorption or the radiations from the body itself.

Thus mechanical life support system are designed with the hep of high engineering techniques for the safety and security as these are life-critical.

4 0

3 years ago

A boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s .

zimovet [89]

Answer:

Force exerted, F = 1.5 N

Explanation:

It is given that, a boxer punches a sheet of paper in midair and brings it from rest up to a speed of 30 m/s in 0.060 s.

i.e. u = 0

v = 30 m/s

Time taken, t = 0.06 s

Mass of the paper, m = 0.003 kg

We need to find the force the boxer exert on it. The force can be calculated using second law of motion as :

$F=m\times a$

$F=m\times (\dfrac{v-u}{t})$

$F=0.003\times (\dfrac{30}{0.06})$

F = 1.5 N

So, the force the boxer exert on the paper is 1.5 N. Hence, this is the required solution.

6 0

3 years ago