All categories

3 years ago

The picture shown shows a practical application of

Physics

2 answers:

kati45 [8]3 years ago

3 0

Answer:

You'd have to show the picture..

Ulleksa [173]3 years ago

3 0

Nuclear power is used thoughout the world safely and efficiently. It makes up approximately 20% of the US production of electricity.

You might be interested in

A rod of 2.0-m length and a square (2.0 mm x 2.0 mm) cross section is made of a material with a resistivity of 6.0 x 10^-8 0.Ω.m

Ksju [112]

Answer:

Heat generated in the rod is 8.33 watts.

Explanation:

It is given that,

Length of rod, l = 2 m

Area of cross section, $A=2\ mm\times 2\ mm=4\ mm^2=4\times 10^{-6}\ m^2$

Resistivity of rod, $\rho=6\times 10^{-8}\ \Omega-m$

Potential difference, V = 0.5 V

The value of resistance is given by :

$R=\rho\dfrac{l}{A}$

$R=6\times 10^{-8}\ \Omega-m\times \dfrac{2\ m}{4\times 10^{-6}\ m^2}$

R = 0.03 ohms

Let H is the rate at which heat is generated in the rod . It is given by :

$\dfrac{H}{t}=I^2R$

Since, $I=\dfrac{V}{R}$

$\dfrac{H}{t}=\dfrac{V^2}{R}$

$\dfrac{H}{t}=\dfrac{(0.5)^2}{0.03}$

$\dfrac{H}{t}=8.33\ watts$

So, the at which heat is generated in the rod is 8.33 watts. Hence, this is the required solution.

8 0

4 years ago

A runner runs the first 400m of a race in 80s, the second 400m in 70s and the final 800m in 130s. What was her average speed for

-BARSIC- [3]

Answer: The average speed is 5.71 m/s

Explanation:

The average speed in this run will be the quotient between the total distance that the runner traveled, and the total time it took.

Distance = 400m + 400m + 800m = 1600m

Time = 80s + 70s + 130s = 280s

Then the average speed is:

S = 1600m/280s = 5.71 m/s

5 0

3 years ago

One kind of baseball pitching machine works by rotating a light and stiff rigid rod about a horizontal axis until the ball is mo

Veseljchak [2.6K]

Answer:

a. ac = 1844.66 m/s²

b. Fc = 265.63 N

Explanation:

The centripetal acceleration of the ball is given as follows:

ac = v²/r

where,

ac = centripetal acceleration = ?

v = speed of ball = (87 mph)(1 h/ 3600 s)(1609.34 m / 1 mile) = 38.9 m/s

r = radius of path = 82 cm = 0.82 m

Therefore,

ac = (38.9 m/s)²/0.82 m

ac = 1844.66 m/s²

The centripetal force is given as:

Fc = (m)(ac)

Fc = (0.144 kg)(1844.66 m/s²)

Fc = 265.63 N

6 0

3 years ago

The wavelength of a wave is the distance between

marissa [1.9K]

The anwser is a even bigger wave is coming

5 0

4 years ago

Read 2 more answers

One star is emitting primarily visible light and another star is emitting primarily infrared light. which star is hotter?

Leona [35]

The star that would be hotter would be; the star emitting visible light.

7 0

4 years ago