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3 years ago

Which of these would be a part of a force diagram for

Physics

2 answers:

Ilia_Sergeevich [38]3 years ago

8 0

Answer:

They are: A, B, and E

For Edge.

Strike441 [17]3 years ago

6 0

Answer:

A dot that represents the box

A vector labeled Fg pointing straight down

A vector labeled Fs, pointing parallel to and up the ramp

Explanation:

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Question 4 of 25

Zinaida [17]

Answer:

Both nuclear fission and nuclear fusion produce energy from

matter

5 0

3 years ago

A tennis ball bounces on the floor three times. If each time it loses 11% of its energy due to heating, how high does it rise af

aalyn [17]

Answer:

h = 3.10 m

Explanation:

As we know that after each bounce it will lose its 11% of energy

So remaining energy after each bounce is 89%

so let say its initial energy is E

so after first bounce the energy is

$E_1 = 0.89 E$

after 2nd bounce the energy is

$E_2 = 0.89(0.89 E)$

After third bounce the energy is

$E_3 = (0.89)(0.89)(0.89)E$

here initial energy is given as

$E = mgH_o$

now let say final height is "h" so after third bounce the energy is given as

$E_3 = mgh$

now from above equation we have

$mgh = (0.89)(0.89)(0.89)(mgH)$

$h = 0.705H$

$h = 0.705(4.4 m)$

$h = 3.10 m$

3 0

3 years ago

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an elements properties to be

DiKsa [7]

Atomic radius is the distance between the center of the nucleus to the outermost orbital shell of the atom. Assume the atom is like a football stadium and the nucleus of the atom is a ball placed at the center of the pitch. The atomic radius is from the center of the ball to the edge of the football stadium.

Explanation:

This atomic radius decreases from left to right of a periodic table because of increases in protons in the nucleus along the periodic table. This increased proton count has a higher attractive force on the electron orbitals of the atom. This decreases the atomic radius

The atomic radius of atoms down a column of the periodic table increase because an extra orbital shell is added to the atoms with every period down the column.

Learn More:

brainly.com/question/1604565

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5 0

3 years ago

Read 2 more answers

A car is moving at a initial velocity of 20 meters per second accelerates at a rate of 1.5 meters per second squared for 4 secon

Brrunno [24]

Answered using calculus.
Antidifferentiated the acceleration to get velocity. Added variable c as we do not know if there was an extra number there yet.
Knowing that when time is 0, the velocity is 20, we can substitute those numbers into the equation and find that c = 20.
Now we have full velocity equation: v = 1.5t + 20
Now we substitute 4 into t to find out the velocity after 4 seconds. This gives us the final answer of 26m/s

5 0

4 years ago

How long does it take for the speed of light and sound to travel around the world

irina [24]

-- Light travels straight, not around in a circle. But if it did, it would cover
a distance equal to the length of the equator in about <em>0.13 second</em>.

-- At the speed of sound (in air at standard temperature and pressure),
it would take about <em>32.6 hours </em>to cover the same distance.

6 0

3 years ago