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3 years ago

What is the difference between mass and weight?

Physics

1 answer:

xxTIMURxx [149]3 years ago

4 0

Answer:

C. Mass is independent of the force acting on the mass.

Weight depends on the gravitational force acting on the mass.

Example: A mass of 1 kg on the earth still has a mass of 1 kg on the moon;

whereas the weight of that mass on earth is 9.8 N and only 1/6 of that amount on the moon.

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. Which is the transfer of energy as waves moving through space?

Solnce55 [7]

Answer:

Radiation is the answer to your question

6 0

3 years ago

A train station bell gives off a fundamental tone of 500 Hz as the train approaches the station at a speed of 30.0 m/s. If the s

TiliK225 [7]

Answer:

548.5 Hz

Explanation:

We are given that

Frequency of source=500 Hz

Speed of train=30m/s

Speed of sound in air=339m/s

We have to find the frequency of the bell to an observer riding the train.

The apparent frequency for the listener

$f=\frac{v_0}{v_0-v_s}f_1$

Where $f_1=$ Frequency of source

$v_0$ =Speed of sound

$v_s$ =Speed of source

Using the formula

The apparent frequency of the bell to an observer riding the train= $\frac{339}{339-30}\times 500=548.5 Hz$

Hence, the apparent frequency of the bell to an observer riding the train=548.5 Hz

3 0

3 years ago

What is the path of an electron moving at 4 000 m/s perpendicular to a magnetic field of 1.5 T? (me = 9.11 x 10^-31kg)

morpeh [17]

Answer:

$15.18\times 10^{-9} m$

Explanation:

Radius of the path of electron which is moving perpendicular to magnetic field is defined as,

$r=\frac{mv}{qB}$

Here, m is the mass of electron, v is the velocity of electron, q is the charge on electron, and B is the magnetic field.

Given that, the velocity of electron is, $v=4000m/s$ .

And the magnetic field is $B=1.5T$ .

And the mass of electron is, $m=9.11\times10^{-31}kg$

And the charge on electron is, $q=1.6\times 10^{-19}C$

Put all these values in radius equation,

$r=\frac{9.11\times10^{-31}kg\times 4000m/s }{1.6\times 10^{-19}C\times 1.5T}\\r=15.18\times 10^{-9} m$

Therefore, the path radius of a moving electron is $15.18\times 10^{-9} m$

7 0

3 years ago

Which biome's yearly rainfall mainly evaporates? A. taiga B. desert C. tropical rainforest D. temperate grassland

victus00 [196]

Desert is the correct answer.

8 0

2 years ago

Read 2 more answers

An experiment is conducted on a long straight wire of diameter d. A constant current is sent through the wire and the magnetic f

Anton [14]

Answer:

$B_2 = \frac{B_1}{2}$

Explanation:

As per Ampere's law the magnetic field at the surface of the wire is given as

$\int B. dL = \mu_0 i$

here we have

$B . (\pi d) = \mu_0 i$

so we will have

$B_1 = \frac{\mu_0 i}{\pi d}$

now again we use same value of current but wire with double the diameter

so the magnetic field at the surface is given as

$B_2 = \frac{\mu_0 i}{2\pi d}$

so we have

$B_2 = \frac{B_1}{2}$

5 0

3 years ago