All categories

3 years ago

What is electrotherapy?

1 answer:

3 0

Electrotherapy can be used for both acute and chronic pain. This very useful when conventional medicines are not as affective. The main purpose of electrotherapy is to relieve muscle pain and it can also repair tissue damage. Although electrotherapy is generally safe when performed correctly, you should not use it if you have certain skin conditions or certain heart conditions.

You might be interested in

Can a machine like a lever, produce a greater force than what you put into it? Can it increase the energy that you put into it?

morpeh [17]

Answer:

yes

Explanation:

the force is multiplied by the levers length of the handle

7 0

2 years ago

Read 2 more answers

An apparatus like the one Cavendish used to ﬁnd G has large lead balls that are 5.2 kg in mass and small ones that are 0.046 kg.

Ber [7]

Answer:

The magnitude of gravitational force between two masses is $4.91\times 10^{-9}\ N$ .

Explanation:

Given that,

Mass of first lead ball, $m_1=5.2\ kg$

Mass of the other lead ball, $m_2=0.046\ kg$

The center of a large ball is separated by 0.057 m from the center of a small ball, r = 0.057 m

We need to find the magnitude of the gravitational force between the masses. It is given by the formula of the gravitational force. It is given by :

$F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67259\times 10^{-11}\times \dfrac{5.2\times 0.046}{(0.057)^2}\\\\F=4.91\times 10^{-9}\ N$

So, the magnitude of gravitational force between two masses is $4.91\times 10^{-9}\ N$ . Hence, this is the required solution.

5 0

3 years ago

What is the direction of the force on a positive charge when passing through a magnetic field as indicated in this diagram? Expl

maria [59]

Answer:

The direction of the magnetic force on a moving charge is perpendicular to the plane formed by v and B and follows right hand rule–1 (RHR-1)

Explanation:

hope this helps

3 0

3 years ago

Did I do these questions correctly?

SOVA2 [1]

Yes, they seem right to me.

4 0

3 years ago

Where does all of this energy come from

Amiraneli [1.4K]

Answer: All of our energy comes from the sun, which is our nearest star. The sun sends out huge amounts of energy through its rays every day. We call this energy solar energy or radiant energy. Without the sun, life on earth would not exist, since our planet would be totally frozen.

6 0

3 years ago