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3 years ago

6. Give an example of an energy transformation from nuclear to electromagnetic.

1 answer:

7 0

An example of an energy transformation from nuclear to electromagnetic is: The sun transforms nuclear energy into ultraviolet, infrared, and gamma energy all forms of electromagnetic energy.

Explanation: The change of energy from one form to another is known as energy transformation. In every second energy transformations is constantly occurring everyplace.

Energy is transferable but it cannot be generated or destroyed. Electrical, mechanical, electromagnetic, nuclear, and chemical are some forms of energy.

The energy stored in the nucleus of an atom is known as Nuclear energy. Huge amounts of energy gets released at the time when nuclei combines or breaks. The gravitational collapse of hydrogen clouds produce heat and pressure that helps in activating Nuclear Fusion.

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A student was traveling to see his grandmother who lives 15 miles north oh his home he started from rest and maintained a pace o

N76 [4]

Explanation:

Given parameters:

Distance = 15miles north = 24140.2m

Initial velocity = 0m/s

Final velocity = 4m/s

Unknown:

Speed, velocity and acceleration = ?

Solution:

The speed is the distance divide by time. It is a scalar quantity and has no directional attribute.

Speed = $\frac{distance }{time}$

The speed of the student is 4m/s

Velocity is the displacement divided by time. It is a vector quantity which specifies the direction and magnitude;

Velocity = $\frac{displacement}{time}$

The velocity of the student is 4m/s due north

Acceleration is the change in velocity with time;

To find the acceleration, we use

v² = u² + 2as

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance

4² = 0² + 2x a x 24140.2

a = $\frac{16}{2 x 24140.2}$ = 0.00033m/s²

3 0

2 years ago

Can someone help me with these questions plz

Korolek [52]

Im not 100% on these but i can try

1. A compound is made up of elements and their different atoms

A. salt- compound (NaCl) is two elements Na (sodium) and Cl (chloride?)

B. Nitrogen- element its on the periodic table

C. Helium- element its on the periodic table

D. Water- compound (H2O) two elements hydrogen and oxygen

3. element, compound, compound, element

Hope this helps

8 0

3 years ago

If the velocity of the particle is uniform, then the path of the particle must be a

lianna [129]

Answer:

write yoir question carefully i am not understanding it

6 0

3 years ago

Dx= 7.14m and Dy = -7.55m<br> What is the direction and magnitude of the vector

KengaRu [80]

The Magnitude of the Vector is 10.39m and the direction of the vector is - 46.7°.

<u>Explanation:</u>

GIven dx=7.14m and dy= -7.55m,

The Magnitude of the Vector= $\sqrt{dy^{2} +dx^{2} }$

Magnitude d= $\sqrt{(7.14)^{2} +(-7.55)^{2} }$ .

d= $\sqrt{50.97+57}$

d= $\sqrt{107.98}$

d= 10.39m.

Direction Ф = $tan^{-1}$ $\frac{dy}{dx}$

= $tan^{-1}$ $\frac{-7.55}{7.14}$

= $tan^{-1}$ (-1.06)

Ф = - 46.7°.

5 0

3 years ago

Water flows on the inside of a steel pipe with an ID of 2.5 cm. The wall thickness is 2 mm, and the convection coefficient on th

Hatshy [7]

Answer:

U = 11.67 W/m² °C

Explanation:

Inner diameter, d = 2.5 cm = 0.025 m

Thickness of the wall, t = 2 mm = 0.002 m

thus, the outer diameter, D = d + 2t = 0.025 + 2 x 0.002 = 0.029 m

$h_i =500 W/m^2.^oC$

$h_0 =12 W/m^2.^oC$

Now, based on outside convection heat transfer

we have

$\frac{1}{UA_o}=\frac{1}{h_iA_i}+\frac{1}{h_oA_o}$

on rearranging, we get

$\frac{1}{U}=\frac{1}{h_i}\frac{A_o}{A_i}+\frac{1}{h_o}$

where, $A_i\ \textup{and}\ A_o$ are the perimeter respective to inner and and outer diameter

on substituting the values, we get

$\frac{1}{U}=\frac{1}{500}\frac{0.029^2}{0.025}+\frac{1}{12}$

U = 11.67 W/m² °C

6 0

3 years ago