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3 years ago

PLEASE ANSWER ASAP BEFORE MY TEACHER AND MY MOM KILLES ME PLEASE ASAP

Physics

1 answer:

Anastaziya [24]3 years ago

6 0

Answer:

As you know, the denser objects have more weight per unit of volume, this will mean that the force that pulls down these objects is a bit larger.

This will mean that the denser objects will always go to the bottom.

This clearly implies that the red liquid, the one with one of the smaller densities, can not be at the bottom.

There are some cases where a liquid with a small density may become a lot denser as the temperature or pressure changes, and in a case like that, we could see the red liquid at the bottom, but for this case, there is no mention of changes in the temperature nor in the pressure, so this can be discarded.

The only thing that makes sense is that the red part at the bottom is the base of the tube, and has nothing to do with the red liquid.

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Please answer this question

belka [17]

ANSWER is c

HOPR THIS WILL BE HELPFUL

8 0

3 years ago

In general relativity, gravitational red shift is caused by

kvasek [131]

Option D would be the correct one!

7 0

3 years ago

A coin is dropped from a height and reaches the ground in 2 seconds. Neglecting air resistance, from what height (in meters) was

Kamila [148]

Answer:

Coin is dropped from a height of 19.62 m

Explanation:

We have given time t = 2 sec

As coin is drop means its initial velocity u = 0 m/sec

We have to find the height from which coin is dropped

From second equation of motion we know that

$h=ut+\frac{1}{2}gt^2$

So height $h=0\times2+\frac{1}{2}\times 9.81\times 2^2=19.62m$

So coin is dropped from a height of 19.62 m

3 0

3 years ago

A few years ago, the legal speed limit on the Turner Turnpike was changed from 55.0 mi/h to 75.0 mi/h.

lukranit [14]

The amount of time saved on the 86.0 mile trip from Tulsa entrance to Oklahoma City is 0.42 hours

Time is the measurement of a past, present, or future event. The S.I unit of time is seconds (s)

To get the time that was saved on the 8.6-mile trip, we use the formula below.

Formula:

Ts = (d/v₁)-(d/v₂)................. Equation 1.

Where:

Ts = Time saved on the trip
d = distance covered during the trip
v₁ = Initial legal speed limit
v₂ = final/current legal speed limit.

From the question,

Given:

d = 86.0 mile
v₁ = 55.0 mi/h
v₂ = 75.0 mi/h

Substitute these values into equation 1

Ts = (86/55)-(86/75)
Ts = 1.564-1.147
Ts = 0.42 h.

Hence, The amount of time saved on the 86.0 mile trip from Tulsa entrance to Oklahoma City is 0.42 hours.

Learn more about time here: brainly.com/question/13893070

6 0

2 years ago

A charged particle enters into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field vec

Anit [1.1K]

Answer:

The charged particle will follow a circular path.

Explanation:

The magnetic force exerted on the charged particle due to the magnetic field is given by:

$F=qvB sin \theta$

where

q is the charge

v is the velocity of the particle

B is the magnetic field

$\theta$ is the angle between v and B

In this problem, the velocity is perpendicular to the magnetic field, so $\theta = 90^{\circ}, sin \theta=1$ and the force is simply

$F=qvB$

Moreover, the force is perpendicular to both B and v, according to the right-hand rule. Therefore, we have:

- a force that is always perpendicular to the velocity, v

- a force which is constant in magnitude (because the magnitude of v or B does not change)

--> this means that the force acts as a centripetal force, so it will keep the charged particle in a uniform circular motion. So, the correct answer is

The charged particle will follow a circular path.

8 0

4 years ago