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olga_2 [115]
3 years ago
10

An object is moving east, and its velocity

Physics
1 answer:
jenyasd209 [6]3 years ago
4 0

i like school its so fun yes

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A system of releases 125kJ of heat while 104kJ of work is done in the system. Calcilate the change om imternal energy (in kJ)
artcher [175]

Answer:

DU = 21 KJ

Explanation:

Given the following data;

Quantity of heat = 125 KJ

Work = 104 KJ

To find the change in internal energy;

Mathematically, the change in internal energy of a system is given by the formula;

DU = Q - W

Where;

DU is the change in internal energy.

Q is the quantity of energy.

W is the work done.

Substituting into the formula, we have;

DU = 125 - 104

DU = 21 KJ

4 0
2 years ago
I will fan and give 2 medals!!!!!!
Maksim231197 [3]
<span> Corona </span>

<span>I.                  </span>Rare gaseous envelope

<span>II.              </span>Irregular pearly glow

<span>III.          </span>Total solar eclipse

<span>IV.             </span>Surrounds darkened moon

<span>V.                 </span>Caused by diffraction

<span> Solar Prominence </span>

<span>I.                  </span>loop shape

<span>II.              </span>large bright gaseous

<span>III.          </span>luminous hydrogen gas

<span>IV.             </span>rises above chromospheres

<span>V.                 </span>anchored to surface (sun’s surface)

<span> Solar Flare </span>

<span>I.                  </span>Intense High-energy

<span>II.              </span>Causes electromagnetic disruptions

<span>III.          </span>In solar atmosphere

<span>IV.             </span>Varies in brightness

<span>V.                 </span>Emits radiation 

<span> Sunspots </span>

<span>I.                  </span>Surface dark spots

<span>II.              </span>Strong magnetic fields

<span>III.          </span>Solar magnetic storms

<span>IV.             </span> Visible through telescope 

<span>V.                 </span>Cooler than photospheres

I did this in class I got 100%

7 0
3 years ago
Which of the following usually occurs with a short circuit? a. All parts of the circuit will begin to carry higher amounts of cu
fgiga [73]

Answer:

Hi,

The correct answer option is; D. Most of the current will flow through one part of the circuit.

Explanation:

A short circuit is a low resistance path in an electric connection between two conductors supplying current in a circuit.

It happens when excess amounts of current flow in the power source through a 'short path'.

Short circuits occur at very high temperatures which is of course caused by the heat produced during dissipation.

An example of application of short circuit is arc welding, where heating is achieved through short circuit.

6 0
3 years ago
The universal law of gravity states that all objects attracts all other objects.
andreev551 [17]
When the object is big enough to contract itself into a ball.
4 0
3 years ago
The battery charger for an mp3 player contains a step-down transformer with a turns ratio of 1:24, so that the voltage of 120 v
miskamm [114]
Considering that we are talking about a stepdown transformer, and a turn ration of 1:24

Then

Vsecondary coil = 120 V / 24 = 5V

(But lets remember that the power must be conserved in the transformer, so the voltage is 24 times less, but the current is 24 times higher)

It provides 5 volts to operate the player or charge the batteries
8 0
3 years ago
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