All categories

3 years ago

How does one get 8.0 A? The answer is D

Physics

1 answer:

ra1l [238]3 years ago

6 0

I don't know why the answer is D , because I can't see the list of choices.

The only way to get 8.0 Amps is by making a serious mistake.

The current in the second picture is 4.0 Amps.

If the resistors are identical, then the effective resistance of

two resistors in parallel is 1/2 the resistance of each one.

The resistance in the second picture is 1/2 the resistance

in the first picture.

Current = (voltage) / (resistance)

Cutting the resistance in half causes the current to double.

If the current was 2.0 Amps in the first picture, it's 4.0 Amps

in the second picture.

You might be interested in

What is most likely to happen to light that hits an opaque object?

ddd [48]

B. is the answer.

C is not correct because the light is actually reflected off of an opaque object.

4 0

3 years ago

Acceleration toward the center of a curved path is called

Serggg [28]

Answer:

Centripetal acceleration.

Explanation:

Centripetal acceleration is a property of a body moving in a uniform circular path and it is directed radially towards the center of the circle in which body is rotating.

The force which causes this acceleration is centripetal force which is also directed towards the center of the circle and pulls the body towards its center.

It is calculated through following formula

$a=v^2/r$

where v is velocity and r is the radius of the circle.

7 0

3 years ago

There’s an image here . Please help out !

ra1l [238]

Answer:

magnet 4

because opposite direction i.e north and south will attract each other

6 0

3 years ago

Read 2 more answers

All but two gaps within a set of Venetian blinds have been blocked off to create a double-slit system. These gaps are separated

Alecsey [184]

Answer:

Explanation:

separation between two gaps, d = 5 cm

angle between central and second order maxima, θ = 0.52°

use

d Sinθ = n λ

n = 2

0.05 x Sin 0.52° = 2 x λ

λ = 2.27 x 10^-4 m

λ = 226.9 micro metre

6 0

3 years ago

A train travels 85 kilometers in 5 hours, and then 63 kilometers in 5 hours what is its average speed?

Lesechka [4]

We know average speed =total distance/time taken
So avg speed=(85+63)/(5+5)=14.8km/hr

3 0

3 years ago