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3 years ago

What is answer of question 7

Physics

2 answers:

Stella [2.4K]3 years ago

8 0

Option A it helps us to work

kondaur [170]3 years ago

4 0

A. (They help us work)

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A charge partides round a 1 m radius circular particle accelerator at nearly the speed of light. Find : (a) The period (b) The c

Scrat [10]

Explanation:

It is given that,

Radius of circular particle accelerator, r = 1 m

The distance covered by the particle is equal to the circumference of the circular path, d = 2πr

d = 2π × 1 m

(a) The speed of satellite is given by total distance divided by total time taken as :

$speed=\dfrac{distance}{time}$

Let t is the period of the particle.

$t=\dfrac{d}{s}$

d = distance covered

s = speed of particle

It is given that the charged particle is moving nearly with the speed of light

$t=\dfrac{d}{c}$

$t=\dfrac{2\pi\times 1\ m}{3\times 10^8\ m/s}$

$t=2.09\times 10^{-8}\ s$

(b) On the circular path, the centripetal acceleration is given by :

$a=\dfrac{c^2}{r}$

$a=\dfrac{(3\times 10^8\ m/s)^2}{1\ m}$

$a=9\times 10^{16}\ m/s^2$

Hence, this is the required solution.

8 0

2 years ago

You need to design a 60.0-Hz ac generator that has a maximum emf of 5500 V. The generator is to contain a 150-turn coil that has

olchik [2.2K]

Answer:

So magnetic field will be equal to 0.1144 T

Explanation:

We have given frequency f = 60 Hz

Maximum emf e = 5500 volt

Number of turns N = 150

Area $A=0.85m^2$

Emf generated in ac generator is given $e=NBA\omega sin(\omega t)$

For maximum emf $sin(\omega t)=1$

So maximum emf will be equal to $e=NBA\omega$

$B=\frac{e}{NA\omega }=\frac{5500}{150\times 2\times 3.14\times 60\times 0.85}=0.1144T$

So magnetic field will be equal to 0.1144 T

3 0

3 years ago

The deviation of a value (x) from the mean of the sample divided by the standard deviation (s)of the sample is known as the "z"

Ugo [173]

Answer:

true.

Explanation:

z-score gives an idea of how far the value of data is from the mean point. Basically is the measure of a standard deviation below or above the mean.

More the deviation of the data from the mean more is the standard deviation.

Z-score or value is calculated by the expression given below:

$z = \dfrac{x-\mu}{\sigma}$

x is the value

μ is the mean

σ is the standard deviation

Hence, the statement given is true.

6 0

3 years ago

A number of energy transformations occur when water that is stored behind a dam is changed into electrical energy. For each step

Dmitrij [34]

Answer:

An unknown galaxy has a large flattened core. Which of the following classifications would best fit this galaxy's description?

Irregular

Spiral

Lens

Elliptical

Explanation:

7 0

3 years ago

Read 2 more answers

In the lab, you submerge 100 g of 40°C nails in 200 g of 20°C water. (The specific heat of iron is 0.12 cal/g # °C.) Equate the

Deffense [45]

Answer:

Final temperature of the mixture becomes

$T = 21.13^oC$

Explanation:

Here we know that heat given by the nail is equal to the heat absorbed by water

So here we know that heat to change the temperature is given as

$Q = ms\Delta T$

so by equating the heat we have

$m_{iron}s_{iron}\Delta T = m_{water}s_{water}\Delta T$

now we have

$100 (0.12) (40 - T) = 200 (1) (T - 20)$

$4.8 - 0.12 T = 2T - 40$

$44.8 = 2.12 T$

$T = 21.13^oC$

5 0

2 years ago