3 years ago

Safety devices used in electric circuit

Physics

1 answer:

Sergeu [11.5K]3 years ago

6 0

Fuses is the answer!

You might be interested in

Why is plasma called the "fourth state of matter"? I've recently heard that plasma is sometimes referred to as the "fourth state

lions [1.4K]

Plasma is the forth state of matter becasue of its unique properties compared to other states of matter such as how it reacts to electromagnetism

5 0

4 years ago

There are two unitless vectors:

Hunter-Best [27]

Answer:

$200.38^0$

Explanation:

Given the forces:

F1 = 8.92 i + 17.37 j

F2 = 8.31 i - 10.97 j

If a third vector is added to them such that they add up to to the null vector as F1 + F2 + F3 = 0

then to get F3:

F3 = -F2-F1

F3 = -(8.31 i - 10.97 j)-(8.92 i + 17.37 j )

F3 = -8.31 i + 10.97 j-8.92 i - 17.37 j

F3 = -8.31i-8.92i+10.97j-17.37j

F3 = -17.23i-6.4j

from the vector:

x = -17.23 and y = -6.4

angle of the third vector with respect to the +x-axis is expressed as:

$\theta = tan^{-1}\frac{y}{x}\\ \theta = tan^{-1}\frac{-6.4}{-17.23}\\\theta = tan^{-1}0.3715\\\theta = 20.38^0$

Hence the angle the vector makes with the x axis will be $\theta = 180+20.38 = 200.38^0$

4 0

4 years ago

Magnesium hydroxide is used in? soap batteries antacids detergents

Inga [223]

The answer is antacids

3 0

3 years ago

Read 2 more answers

If potential energy at point A is 12 joules, what is the potential energy at D?

Irina-Kira [14]

Answer:

In D: 3J

Explanation:

Potential energy: Ep=mgh where m is the mass, h altitude.

In point A: h=20cm=0.2m

Epa=12=0.2×mg. Thus mg=12/0.2=60N

For point D: hd=5cm=0.05m

Epd=mg×0.05=60×0.05=3J

5 0

3 years ago

A train moves from rest to a speed of 25 m/s in 30.0 seconds . What is the acceleration

stich3 [128]

When a car moves from rest then the initial velocity,
$u = 0m {s}^{ - 1}$

The final velocity,

$v = 25m {s}^{ - 1}$
and time,
$t = 30s$
Using the equation,
$v = u + at$
We have,

$25 = 0 + a(30)$
$25 = 30a$
$\frac{25}{30} = a$
$\therefore \: a = \frac{5}{6} m {s}^{ - 2}$

7 0

3 years ago