3 years ago

Which statement best explains why electricity should be conserved?

Physics

2 answers:

andrezito [222]3 years ago

8 0

A sounds correct. ....

Andrei [34K]3 years ago

7 0

Answer:

A. Fossil fuels generate electricity and are limited in supply.

Explanation:

You might be interested in

Why might scientists measure the mass of object rather than the weight of an object?

Marina CMI [18]

Because they have different measurements and weight and mass and some measurements are the same

3 0

3 years ago

Recall that the spring constant is inversely proportional to the number of coils in the spring, or that shorter springs equate t

ruslelena [56]

Answer:

$x_1= 0.0425m$

Explanation:

Using the tension in the spring and the force of the tension can by describe by

T = kx

, T = mg

Therefore:

$m*g = k*x$

With two springs, let, T1 be the tension in each spring, x1 be the extension of each spring. The spring constant of each spring is 2k so:

$T_1 = 2k*x_1$

$2T_1 = m*g=4k x_1$

Solve to x1

$x_1=\frac{m*g}{4k}$

$x_1=\frac{k*x}{4*k}$

$x_1=\frac{x}{4}$

$x_1 = 0.170 / 4$

$x_1= 0.0425m$

7 0

3 years ago

A train of mass 5.6 × 10^5kg is at rest in a station.at time t=0s, a resultant force acts on the train and it starts to accelera

lana66690 [7]

Answer:

420000N

Explanation:

Given parameters:

Mass of the train = 5.6 x 10⁵kg

Acceleration = 0.75m/s²

Unknown:

Resultant force = ?

Solution:

According to newton's second law, force is the product of mass and acceleration;

Force = mass x acceleration

Resultant force that acts on the train is given below;

Force = 5.6 x 10⁵kg x 0.75m/s² = 420000N

7 0

3 years ago

The three factors that determine the amount of potential energy in an object are?

ozzi

Answer:

ggy h Jr scythe fund the CT h hytgy6fhhj

4 0

2 years ago

A cupboard is placed in front of a heater. Air can move through a gap under the cupboard.

expeople1 [14]

Answer:

Explanation:

7 0

3 years ago