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3 years ago

What do you need to make 100 minutes charges neutral

1 answer:

4 0

Neutrons are neutral and do not have any charge at all. Protons carry a positive charge, and electrons carry the negative charge.

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A 2 kg toy car moves at a speed of 5 m/s. What is the kinetic energy of the car?

ANTONII [103]

Answer:

<h2>The answer is 25 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

$KE = \frac{1}{2} m {v}^{2} \\$

m is the mass

v is the velocity

From the question we have

$KE = \frac{1}{2} \times 2 \times {5}^{2} \\ = 1 \times {5}^{2}$

We have the final answer as

Hope this helps you

5 0

3 years ago

What is the target heart rate for a 24 year old?

andriy [413]

Answer:

196

Explanation:

subtract 24 from 220 to get your answer.

6 0

2 years ago

Read 2 more answers

What is the main function of the spongy bone'

storchak [24]

Oooooo there's a spongy bone? that's cool! Lol okay okay, I will research it and help you out.

Here's what I found:

Cancellous bone, also known as spongy or trabecular bone, is one of the two types of bone tissue found in the human body. ... It is very porous and contains red bonemarrow, where blood cells are made.

7 0

3 years ago

Read 2 more answers

The frequency of a microwave is 1.2 x 10^9 hertz. what is the wavelength of the given problem.

Olenka [21]

Answer:

0.25 m

Explanation:

Electromagnetic waves consist of oscillations of the electric and the magnetic field, oscillating in a plane perpendicular to the direction of motion the wave.

All electromagnetic waves travel in a vacuum always at the same speed, the speed of light, whose value is:

$c=3.0\cdot 10^8 m/s$

Microwave is an example of electromagnetic waves.

The relationship between wavelength and frequency for an electromagnetic wave is:

$\lambda=\frac{c}{f}$

where

$\lambda$ is the wavelength

$c=3.0\cdot 10^8 m/s$ is the speed of light

f is the frequency

For the microwave in this problem,

$f=1.2\cdot 10^9 Hz$

So its wavelength is

$\lambda=\frac{3.0\cdot 10^8}{1.2\cdot 10^9}=0.25 m$

7 0

4 years ago

A proton and an electron are moving in the +x direction in a magnetic field in the +z

Aleksandr [31]

Answer:

Explanation:

Force on a moving charge is given by the following relation

F = q ( v x B )

for proton

q = e , v = vi , B = Bk

F = e ( vi x Bk )

= Bev - j

= - Bevj

The direction of force is along negative of y axis or -y - axis.

for electron

q = - e , v = vi , B = Bk

F = - e ( vi x Bk )

= - Bev - j

= Bevj

The direction of force is along positive of y axis or + y - axis.

5 0

3 years ago