3 years ago

What happens when an object with a higher density is placed in a container with a lower density liquid?

1 answer:

8 0

The object with the higher density sinks to the bottom and the lower density stays at the top.They don't mix together either because, of the type of density.

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A circuit has a voltage drop of 24.0 V across a 30.0 resistor that carries a

beks73 [17]

(A) 19.2 W

Explanation:

Given-

Voltage drop, V = 24 V

Resistor = 30Ω

Current, I = 0.8 A

Power, P = ?

We know,

P = VI

P = 24 (0.8)

P = 19.2 W

Therefore, the power conducted by the resistor is 19.2 W

6 0

3 years ago

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A 5.00 kg crate is on a 21.0° hill.

mojhsa [17]

Answer: 4575N

Explanation:

For y component, W = mgcosø

W = 500×9.8cos21

W = 4574.54N

Find the diagram in the attached file

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3 years ago

Jupiter is a much more massive planet than Earth. What would happen to a person’s mass and weight if he were on Jupiter?

Harrizon [31]

There would be no mass or weight and he would float away

5 0

3 years ago

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Which example possesses mechanical potential energy?. A. a taut guitar string. B. an oscillating pendulum. C. a roller coaster r

NeTakaya

The taut guitar string haspotencial energy which we can see in action. · so option a is correct.

7 0

3 years ago

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By what factor is the self-inductance of an air solenoid changed if its length and number of coil turns are both tripled

fredd [130]

Answer:

The new self inductance is 3 times of the initial self inductance.

Explanation:

The self inductance of a solenoid is given by :

$L=\dfrac{\mu_oN^2 A}{L}$

Where

N is number of turns per unit length

A is area of cross section

l is length of solenoid

If length and number of coil turns are both tripled,

l' = 3l and N' = 3N

New self inductance is given by :

$L'=\dfrac{\mu_oN'^2 A}{L'}\\\\=\dfrac{\mu_o(3N)^2 A}{3L}\\\\=3\dfrac{\mu_oN^2 A}{L}\\\\=3L$

So, the new self inductance is 3 times of the initial self inductance.

4 0

3 years ago