Use the following d/t graph to determine the velocity of the object

Answer:

D. A force within a fluid that pushes upward

Explanation:

Buoyancy is the ability of something floating in water, so it's probably not about the attraction between molecules and is about a force within a fluid. If a force within a fluid is pushing downwards on an object, that would make the object go downwards (sink), which is not buoyancy. If a force within a fluid is pushing upwards on an object, the object would be floating.

Answer:

Option D

Explanation:

When you put any object and push it inwards water .

According to Newton's third law every action has equal and opposite reaction

So the water hits back with opposite force which is known as buoyant force.

Archimedies law is applicable in these cases

Answer:

the nucleus of an atom is held together by a strong nucleus force that binds together protons and neutrons.all though the strong nucleus force is stronger than the four fundamental forces.it acts over very short typically nucleus substances

Answer:   The piezoelectric effect describes the property of certain solids to generate an electrical charge under mechanical stress. The actuating force modifies the microscopic structure of the body; dipoles are created between which a voltage builds up. And Their positive and negative charges complement each other creating two types of electricity: static electricity

Explanation:

Formula :- Force = mass × acceleration

F= m × a

[tex]2 = 0.6 \times a \\ 2 \times \frac{10}{6} = a \\ \cancel2 \times \frac{10}{ \cancel6 {}^{ \: \: 3} } = a \\ \frac{10}{3} = a = 3.33[/tex]

Option A -> 3.3

Answer:

3.3 m/s²

Explanation:

Formula :

Given :

Solving :

Answer:

the answer is equal to yes

The students can feel the vibrations from the bleachers, but not from the drums because of the resonance.

The resonance condition occurs when the frequency of a wave matches with the resonance frequency.

The transfer of energy becomes maximum when the natural frequency matches with the frequency generated by the source.

The bleacher and student together having the frequency matching with the resonance frequency of the drum.

The bleacher and student with the bag frequency doesn't match with the resonance value of drums. Secondly, as distance increases sound intensity also decreases.

Thus, the student can feel the vibrations from the bleachers, but not from the drums because of the resonance.

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Answer:

True: For a sound wave to propagate, air particles must be displaced in the direction of propagation - it is the displacement of these particles that causes the eardrum to vibrate and recognize the sound.

The magnitude of the sum of the two vectors is 20.22 m and the direction of the two vectors, A + B is 50⁰.

The magnitude of the sum of the two vectors is calculated as follows;

Bx = Bcosθ

By = Bsinθ

Bx = 15 m x cos(30) = 12.99 m

By = 15 x sin(30) = 7.5 m

Ax = 8 m x cos(90) = 0 m

Ay = 8 x sin(90) = 8 m

Ax + Bx = 0 + 12.99 m = 12.99 m

Ay + By = 8m + 7.5 m = 15.5 m

R = √12.99² + 15.5²

R = 20.22 m

tanθ = 15.5/12.99

tanθ = 1.19

θ = 50⁰

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Explanation:

velocity = wavelength × frequency

3×10⁸ = 400/10⁹ × frequency

frequency = 3 × 10¹⁵ /400

frequency = 75×10¹¹Hz

Answer:

I think the answer will be C

Explanation:

D doesnt make sense

A doesn't make sense

B nonrenewable resources do release greenhouse gasses

Answer:

1) convection.

2) thermometer.

3) Celsius scale.

4) Radiation.

5) Conduction.

6) Clinical thermometers.

Explanation:

so the questions have already given you a simple idea of their meanings.

Good luck.

Answer:

Its momentum thats linear

Explanation:

from my secret analysis i would say this is really linear

The term used to indicate different DNA nucleotide changes in humans exposed to radiation is called a mutation.

A mutation is any DNA nucleotide change or modification that occurs in the genome of a given organism.

Mutations may be caused by physical agents (e.g., UV radiation) or chemical agents.

In conclusion, the term used to indicate different DNA nucleotide changes in humans exposed to radiation is called a mutation.

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Answer:

The latent heat of fusion for water is 334 joules per gram.

Explanation: im smart

It gives humans space to build houses or shelters.

Answer:

Explanation:

Answer

How about a thunder storm. I don't know if you live in a city or out in the sticks as I do. Lighting is very obvious and it is not a good idea to be out when experiencing a thunderstorm, especially in an open field. You might be the only thing around that will cause the lightning to be connected to the ground.#  Seconds later, you will hear the thunder which is quite harmless. If you live in the city, observing this is not quite so easy. There are all kinds of buildings around and some of them may block your view.

#The great golfer, Lee Travino, was "hit" by lightening storm twice while playing in tournaments.

Answer:

your answer should be astronomy

Explanation:

Answer:

2 amperes

Explanation:

V = IR

V/R = I

120 v / 60 ohms = 2 amps

Explanation:

the radius is always half of the diameter.

so, the radius is approximately 3.6/2 = 1.8 in.

and the circumference of a circle is

2×pi×r = d×pi = 3.6×3.14 = 11.304 ≈ 11.3 in.

Answer:

In a solar eclipse, the sun is completely blocked because the moon moves between the earth and the sun. Although the moon is much smaller than the sun because it is located so far away from the earth, the moon can completely block sunlight from the earth's point of view.

Answer:

Answer = Radio waves and X-rays

Explanation:

Hope that helps! :)

The analogy activity of the balloon with galaxies drawn on them is incorrect because galaxies may have different shapes.

A galaxy is a group of stellar systems like our solar system linked by gravity in a particular space and time in the Universe.

Galaxies may adopt different forms such as spiral galaxies, elliptical galaxies, irregular galaxies, etc.

In conclusion, the analogy activity of the balloon with galaxies drawn on them is incorrect because galaxies may have different shapes.

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Answer:

False

that should be 5m

Explanation:

So

Answer:

Work=Force×distance

Explanation:

work=force×distance

force=64N

distance=11m

work=64×11=704Joules

Remember unit of work is Joules or Newton metre(N/m).

Answer:

140.85 is the correct answer