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3 years ago

8

1. What makes a compound a base?

1 answer:

BigorU [14]3 years ago

4 0

Answer:

Explanation:

1. What makes a compound a base?

C. It dissolves into Hydroxide ions in water (OH-)

2.what makes a compound a acid ?

A. It dissolves hydrogen ions in water (H+ or H30+)

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A piece of aluminium foil is held between a bar magnet and a paperclip. What will happen to the paper clip?

Nuetrik [128]

Answer:the paper clip will be attracted to the magnet

Explanation:

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3 years ago

Consider two rocks with masses of 1 and 10 kilograms. What is the relation between their inertias? Between their masses? Between

FinnZ [79.3K]

The greater mass the object has the greater its inertia would be. As inertia becomes greater, the same happens with the force which is needed stop motion. Linear motion and rotational motion are quite different, because the first one depends only on mass while the second embraces mass, size and shape of an object. According to the information I shared, one will not be able to stop 10 kg mass due to far greater inertia than object of 1kg mass.

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7 0

3 years ago

PLEASE ANSWER ASAP!!

liq [111]

As we know that magnetic field strength due to solenoid is given by

$B = \frac{\mu_0 N i}{L}$

here we know that

$\mu_0$ = permeability of air medium

N = number of turns

L = length of solenoid

i = electric current

Now as we enter the iron rod into the solenoid the medium will get change that will increase the permeability

so with the iron rod we will have

$B = \frac{\mu_0 \mu_r N i}{L}$

so correct answer will be

<u>It increases the magnetic field’s strength. </u>

8 0

3 years ago

Read 2 more answers

A coil consists of 200 turns of wire. Each turn is a square of side d = 18 cm, and a uniform magnetic field directed perpendicul

vampirchik [111]

Answer:

Induced emf in the coil, $\epsilon=4.05\ volts$

Explanation:

Given that.

Number of turns in the coil, N = 200

Side of square, d = 18 cm = 0.18 m

The field changes linearly from 0 to 0.50 T in 0.80 s.

To find,

The magnitude of the induced emf in the coil while the field is changing.

Solution,

We know that due to change in the magnetic field, an emf gets induced in the coil. The formula of induced emf is given by :

$\epsilon=\dfrac{d\phi}{dt}$

$\phi$ = magnetic flux

$\epsilon=-\dfrac{d(NBA)}{dt}$

A is the ares of square

$\epsilon=AN\dfrac{d(B)}{dt}$

$\epsilon=AN\dfrac{B_f-B_i}{t}$

$\epsilon=(0.18)^2\times 200 \times \dfrac{0.5-0}{0.8}$

$\epsilon=4.05\ volts$

So, the induced emf in the coil is 4.05 volts. Hence, this is the required solution.

8 0

3 years ago