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3 years ago

How are electric current and a circuit related?

Physics

2 answers:

EastWind [94]3 years ago

7 0

Answer:

They both have elriciidy

Explanation:

Anastaziya [24]3 years ago

4 0

They are related by connection and by what they have incommon list online

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If a motorcyclist accelerates from rest to 40 m/s in 8 seconds, what is their acceleration?

IgorC [24]

Answer:

5 m/s²

Explanation:

Given:

v₀ = 0 m/s

v = 40 m/s

t = 8 s

Find: a

a = (v − v₀) / t

a = (40 m/s − 0 m/s) / 8 s

a = 5 m/s²

8 0

3 years ago

You are the captain of a pirate ship and wish to find out how strong a new first mate is at rowing treasure from shore to the sh

AlekseyPX

Answer:

Explanation:

Power is work divided by time:

P = W / t

Work is force times distance:

W = F d

Therefore:

P = F d / t

Given that F = 500 N, d = 60 m, and t = 240 s:

P = 500 N * 60 m / 240 s

P = 125 W

Answer is C.

7 0

3 years ago

2. Because it can take one year to form just a few centimeters of new soil, 3 points

Grace [21]

Answer:

False.

Explanation:

6 0

3 years ago

2. A car is moving south. It is getting faster. In which direction is the acceleration?

notka56 [123]

South it is the same direction the car is already moving

7 0

3 years ago

In a lab experiment, two identical gliders on an air track are held together by a piece of string, compressing a spring between

ddd [48]

Answer:

Part a)

$v_2 = -0.300$

Part b)

Here final kinetic energy is more than the initial kinetic energy

This increase in kinetic energy is due to spring connected between them as the spring energy is converted into kinetic energy of two blocks

Explanation:

Part a)

As we know that there is no external force on the system of two gliders

So here we can use momentum conservation for two gliders

So we will have

$m_1 v_1 + m_2 v_2 = (m_1 + m_2)v_i$

$m_1 = m_2$

$1.300 + v_2 = 2(0.500)$

$v_2 = -0.300$

Part b)

now we will have

initial kinetic energy of both gliders is given as

$K_i = \frac{1}{2}(m + m)(0.500)^2$

$K_i = 0.25m$

Final kinetic energy of two gliders

$K_f = \frac{1}{2}m(0.300)^2 + \frac{1}{2}m(1.300)^2$

$K_f = 0.89 m$

so here final kinetic energy is more than the initial kinetic energy

This increase in kinetic energy is due to spring connected between them as the spring energy is converted into kinetic energy of two blocks

8 0

3 years ago