2. A child swings back and forth on a swing with no friction or air resistance between points X and Z, as shown. Point Y is the lowest point in the swing, where height is zero. Which of the following is equal to the kinetic energy of the child at point Y?
(A) The kinetic energy of the child at point X.
(B) The kinetic energy of the child at point Z.
(C) The potential energy of the child at point Y.
(D) The potential energy of the child at point Z.

Answer:

10

Explanation:

Amu denotes for unified atomic mass.

it is mostly used to define the atom's mass and molecules.

we know that

One unit of amu is 1 ÷ 12 of the mass of a nuclide 12C

And 1 u = 1.660 538 921 × 10-27 kg

In the inside we can found that there is 10 nucleons so here the alss of the atoms would be 10 amu  

Answer:

guy above me is right

Explanation:

Answer:

try this answer out and let see

Answer:

A) 35 ft

B) 5 ft

C) Net displacement = distance covered by the dog to retrieve the stick - distance covered before the dog starts chewing the stick

Explanation:

A) Total distance covered by the dog = 20 + 15

                                  = 35 ft

B) Since the other distance covered by the dog before chewing the stick, after the retrieval, was in an opposite direction to the initial direction, then;

total displacement of the dog = 20 - 15

                                  = 5 ft

C) Net displacement = distance covered by the dog to retrieve the stick + distance covered before the dog starts chewing the stick

But, displacement involves a specified direction. The distance covered before the dog starts chewing the stick was in an opposite direction to the initial direction.

Thus,

Net displacement = distance covered by the dog to retrieve the stick - distance covered before the dog starts chewing the stick

Answer:

Gravity acts to push the object sideways

Explanation:

projectile motion is a motion that moves along a curved path under the action of gravity only. Hope this helps!

Answer:

I think is called Motion

but am not sure

Answer:

Maybe its displacement, I'm not sure?

Explanation:

Answer:

Laterite is your correct answer

Explanation:

Well i took the quiz and made a %100 meaning i am correct.

The laterite soil is found in warm, humid climates

A variety of rocks weathered under highly oxidising and leaching circumstances to form laterite soil, which is present in the soil layer and is rich in iron oxide.

Given data ,

Let the soil be represented as A

Now , the soil is found in warm, humid climates

The laterite soil is is rich in iron and aluminium, are assumed to have developed in hot, humid tropical climes. Because to the substantial concentration of iron oxide, nearly all laterites have a rusty-red colour.

They develop as a result of prolonged, intensive erosion of the underlying rock material, which most frequently takes place during periods of high temperatures and heavy precipitation that alternate with periods of dry weather.

Hence , Laterite is the type of soil is found in warm, humid climates.

To learn more about laterite soils click :

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(60 W) x (336 hrs) = 20,160 W-hr

That's 20.16 KWh .

Answer:

the pressure exerted at the base of the container is 490 N/m²

Explanation:

Given;

density of water, ρ = 1,000 kg/m³

base of the rectangular container, = 50 cm by 30 cm

height of water in the tank, h = 5 cm = 0.05 m

The pressure exerted at the base of the container is calculated as;

P = ρgh

where;

g is acceleration due to gravity = 9.8 m/s²

P = 1000 x 9.8 x 0.05

P = 490 N/m²

Therefore, the pressure exerted at the base of the container is 490 N/m²

Answer:

Wave Speed (m/s)

31.25

Summary

Wavelength (m)6.25

Frequency (hz)5

Explanation:

https://calculator.academy/wave-speed-calculator/#f1p1

Answer:

600J

Explanation:

W=Fd so, W=100*6=600J

Answer: C

Explanation: I did the test

We need to use 6 red circles and 8 blue circles to represent the 6 protons and 8 neutrons in the nucleus. Then, we need to place 6 yellow circles around the nucleus to represent the 6 electrons in the atom. Option C is correct.

To create a correct model of a Carbon-14 atom, we need to follow the steps that represent the correct number of protons, neutrons, and electrons in a carbon-14 atom.

Carbon-14 has 6 protons and 8 neutrons, so we need to use a total of 6 red and 8 blue circles in the nucleus. It also has 6 electrons, so we need to place 6 yellow circles around the nucleus.

The correct steps to follow to create a model of a Carbon-14 atom are:

B. steps 1, 4, 6

Step 1:  Use 6 red circles for the nucleus of the atom

Step 4: Add 8 blue circles to the nucleus of the atom

Step 6:  Place 6 yellow circles around the nucleus of the atom

Therefore, we need to use 6 red circles and 8 blue circles to represent the 6 protons and 8 neutrons in the nucleus. Then, we need to place 6 yellow circles around the nucleus to represent the 6 electrons in the atom.

Learn more about Carbon-14 atom here:

https://brainly.com/question/30727793

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Answer:

Most energy drinks contain large amounts of caffeine, which can provide a temporary energy boost. Some energy drinks contain sugar and other substances. The boost is short-lived, however, and may be accompanied by other problems.

Explanation:

Answer:

kinda

Explanation:

Most energy drinks contain large amounts of caffeine, which can provide a temporary energy boost. Some energy drinks contain sugar and other substances. The boost is short-lived, however, and may be accompanied by other problems.

Answer:

Atomic models are important because, they help us visualize the interior of atoms and molecules, and thereby predicting properties of matter.

Explanation:

We study the various atomic models in our course of study because, it is important for us to know, how did people come to the present concept of an atom. How did physics evolve from classical to quantum physics.

All these are important for us to know and thus, knowledge about various atomic models, their discoveries and drawbacks and finally improvements based on scientific evidence present at that time is important for us to understand the underlying theory very well.

Choose The 3rd Option.

.....

Answer:

Im going to say voltage. It matches with my notes but it says voltage difference so i hope this helps!

Explanation:

Answer:

Explanation:

When vinegar and baking soda are first mixed together, hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda. The result of this initial reaction is two new chemicals: carbonic acid and sodium acetate. The second reaction is a decomposition reaction.

Answer:

Answer:

η = 1.31

Explanation:

The formula for the refractive index of from air to some other medium is given by the following formula:

[tex]\eta = \frac{c}{v}\\[/tex]

where,

η = refractive index = ?

c = speed of light in air = 3 x 10⁸ m/s

v = speed of light in ice = 2.29 x 10⁸ m/s

Therefore, using these values in the equation we get:

[tex]\eta = \frac{3\ x\ 10^8\ m/s}{2.29\ x\ 10^8\ m/s} \\[/tex]

η = 1.31

Answer:

the time between successive meridian transits of the sum at a particular place

Answer:

A: The mass would be 250kg

Explanation:

In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object. where m is the mass and v is the velocity. The equation illustrates that momentum is directly proportional to an object's mass and directly proportional to the object's velocity.

p= mv

m= p/ v

The explanation to that is:

momentum = mass× velocity

mass= momentum / velocity

THE ANSWER IS A

Hope this helps!

Answer:

Newton's First Law of Motion.

Explanation:

Newton's First Law of Motion states that a body continues its state of motion untill and unless an external force acts on it. Here, the truck moves forward even after the breaks are applied in order to maintain its State of motion.

Answer:

Your answer is B. Limiting factors

Explanation:

Brainliest pleaseeee

its not a or b I believe it's d but I'm not positive

Answer:

An object in motion will remain in motion until it experiences an unbalanced force.

Explanation:

This is part of Newton's first law. An unbalanced force is there to offset the object in motion, such as a ball versus a wall. A wall will stop the ball from moving.

Answer:

3.375 m/s²

Explanation:

Using equation of motion:

v = u + at

Here, v = 27m/s & u = 0m/s & t = 8 sec

Let the acceleration be a.

=> 27 = 0 + 8(a)

=> 27/8 = a

=> 3.375 m/s²

Answer:

Stress does not cause illness, but restrains the immune system's ability to fight foreign invaders

Explanation:

It's correct :)

Answer:

Driving force increases, friction forces increase, the driving force is bigger than friction 12.

Explanation: