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Darya [45]
3 years ago
13

What is Magnetism ? pls help

Physics
1 answer:
mote1985 [20]3 years ago
7 0

Answer:

A motion produced by electric charge which causes attractive and repulsive forces between objects.

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What's the symbol for an ionized gallium atom?
babunello [35]
Hi there!

Gallium is chemical element 31, (meaning 31 protons, 31 electrons).

The symbol for Gallium is "Ga"

Hope this helps you!

~DoctorLex
6 0
3 years ago
It requires 2,500 joules to raise a certain amount of water (c = 4.186 J/g C) from 20 C to 60 C
Ksivusya [100]

The mass of the water is 14.9 g

Explanation:

When a certain amount of a susbtance is heated, the temperature of the substance increases according to the equation

Q=mC_s \Delta T

where

Q is the amount of energy supplied to the substance

m is the mass of the substance

C_s is its specific heat capacity

\Delta T is the change in temperature

In this problem, we have:

Q = 2500 J of energy supplied to the water

C_s = 4.186 J/gC is the specific heat capacity of water

\Delta T=60 C - 20 C = 40^{\circ}C is the change in temperature of the water

Therefore we can solve for m to find the mass of the water:

m=\frac{Q}{C_s \Delta T}=\frac{2500}{(4.186)(40)}=14.9 g

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

7 0
3 years ago
A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of 3
Advocard [28]

Answer:

r = 5.07 m

Explanation:

given,

velocity of the man , v = 3.43 m/s

centripetal acceleration, a = 2.32 m/s²

magnitude of position of = ?

using centripetal acceleration formula

a_c =\dfrac{v^2}{r}

2.32 =\dfrac{3.43^2}{r}

r =\dfrac{3.43^2}{2.32}

   r = 5.07 m

The magnitude of the position vector relative to rotational axis is equal to 5.07 m.

5 0
3 years ago
An air mass is a large pocket of air with _____.
maw [93]
An air mass is a large pocket of air with a uniform temperature and humidity
5 0
3 years ago
Hot air balloon ( look at pic)
kramer

Answer:

I think that the answer is convection.

Explanation:

Hope this helps.

6 0
3 years ago
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