A person walks 200meters at 27 degrees north of East

Answer: Teeth whitening is the dependent variable.

Toothpaste with or without baking soda are the independent variables.

Explanation:

An independent variable is required to be altered and tested on the experimental or dependent variable to know the effect of the independent variable on the dependent variable.

Here, the teeth whitening is the dependent variable which depends on the type of material used for making them white. The tooth paste with or without the baking soda is tested on teeth to check their whitening.

Waymo is far ahead of any other autonomous vehicle company since they have far more operable vehicles. Also, their vehicles have driven a lot more kilometres--both in real life and in simulations. GM (General Motors) Cruise division has the second-largest amount of operable vehicles. Although their vehicles have driven fewer kilometres compared to Waymo, they've still driven a considerable amount.

Ford Motor Company's Argo AI, Tesla, and Baidu are also notable mentions.

Answer:

C. would be the correct option

Explanation:

Burning gasoline is a chemical change because when gasoline is ignited, water and carbon dioxide are produced. Water freezing to form ice would be a physical change since its state of matter has changed, but not the water itself. Sugar dissolving in water is also a physical change because all it's really doing is just forming bubbles and changing the color. Choice D. would also be a physical change since the piece of metal is still a piece of metal, it just expanded when the temperature increased.

Answer:

The radius is  [tex]r = 3.21*10^{4} \ m[/tex]

Explanation:

From the question we are told that  

   The density is  [tex]\rho = 2000 \ kg/m^3[/tex]

    The speed is  [tex]v = 24 \ m/s[/tex]

Generally the largest radius of the asteroid is mathematically represented as

      [tex]r = \frac{v^2}{ \sqrt{G * \rho * [\frac{4}{3} ] * \pi} }[/tex]

=>   [tex]r = \frac{24^2}{ \sqrt{ 6.67*10^{-11} * 2000 * [\frac{4}{3} ] *3.142 } }[/tex]

=>   [tex]r = 3.21*10^{4} \ m[/tex]

Answer:

The horizontal velocity of the projectile at the time it reaches maximum altitude approximately equal to 131.331 meters per second.

Explanation:

From Mechanical Physics we understand that projectile motion is the combination of a horizontal motion at constant velocity and a vertical uniform accelerated motion due to gravity. Then, the horizontal velocity of the projectile ([tex]v_{x}[/tex]), measured in meters per second,  remains constant during motion. That is:

[tex]v_{x} = v_{o}\cdot \cos \theta[/tex] (Eq. 1)

Where:

[tex]v_{o}[/tex] - Initial velocity of the projectile, measured in meters per second.

[tex]\theta[/tex] - Launch angle above the horizontal, measured in sexagesimal degrees.

If we know that [tex]v_{o} = 250\,\frac{m}{s}[/tex] and [tex]\theta = 45^{\circ}[/tex], then horizontal velocity of the projectile at the time it reaches maximum altitude is:

[tex]v_{x} = \left(250\,\frac{m}{s} \right)\cdot \cos 45^{\circ}[/tex]

[tex]v_{x} \approx 131.331\,\frac{m}{s}[/tex]

The horizontal velocity of the projectile at the time it reaches maximum altitude approximately equal to 131.331 meters per second.

Answer: The mass of the carts is different.

Explanation: If the mass of the cart is less, it is able to be pushed further out because it weighs less which causes it to gain acceleration while the other cart could have a greater mass and its weight would cause it to slow down. Hope this helps! :).

Answer:

I believe it is 600.

Explanation:

300 divided by 0.5

(I am so sorry if this is wrong, I am currently learning the same thing.)

Answer:

false

Explanation:

X-radiation, is a penetrating form of high-energy electromagnetic radiation.

Answer:

If the trains are moving at the same speed, the answer is A.

The clock in train B appears to be the same width and to run at the same rate. Option A is correct.

It is given that an observer on train A, which is moving close to the speed of light, views a clock in train B, which is stationary at the train station.

It is required to find how an observer would observe a clock in train B.

If a person is in a moving train, then his body is also in a state of motion with respect to the train at the same rate. When the observer observes any object that is at rest then it does not change the shape or size of an object. Also an object appears to run a=t the same rate due to the relative velocity attain by the observer's train.

Relative Motion is

Relative motion is the speed or the motion of an object with respect to the moving or the stationary object.

Thus the clock in train B appears to be the same width and to run at the same rate.

Learn more about relative motion here:

https://brainly.com/question/15836528

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Answer:

Characteristic Property

Explanation:

A property of matter that is always the same, no matter what size the sample. These are used to help identify substances. Examples are density, solubiility, flammability, reactivity

Answer:it c

Explanation: I took the test

Its P path describes the change of state i.e from solid to liquid.

"A solid is that state of matter which has a fixed shape, mass, and volume. It suffers very small changes in volume by changing the temperature. It can not be compressed, e.g. — Sand, Wood, Copper, Ice, etc."

"A liquid is a sample of matter that conforms to the shape of a container in which it is held, and which acquires a defined surface in the presence of gravity. The term liquid is also used in reference to the state, or condition, of matter having this property."

Know more about solid here

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Answer:

B. Clamshell

Explanation:

Density is defined as mass per volume. The density of an object decides whether that object will sink or float if placed in water.

An object with higher density sinks in the water while an object with less density floats in water. In the given example, Clamshell has the highest density as it sinks in the water while other objects' wooden stick and acorn float over the water.

Clamshell has the highest density than water as well because the object has more weight per unit of volume and the buoyancy force of water decreases that allow the object to sink.

Hence, the correct answer is "B. Clamshell".

Answer:

C/third image.

Explanation:

Clastic rocks are defined as being composed of consolidated sediments formed by the accumulation of fragments derived from preexisting rocks and transported as separate particles to their places of deposition by purely mechanical agents.

Hope this helped!

-Toshino

Answer:

0.231 rev/s

Explanation:

[tex]m[/tex] = Mass of cylinder

[tex]d[/tex] = Diameter of the cylinder = [tex]13.5\ \text{m}[/tex]

[tex]r[/tex] = Radius = [tex]\dfrac{13.5}{2}=6.75\ \text{m}[/tex]

[tex]\mu[/tex] = Coefficient of static friction = [tex]0.695[/tex]

[tex]N[/tex] = Normal force = [tex]mr\omega^2[/tex]

[tex]g[/tex] = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

The force equation of the system will be

[tex]\mu N=mg\\\Rightarrow \mu\times mr\omega^2=mg\\\Rightarrow \omega=\sqrt{\dfrac{g}{\mu r}}\\\Rightarrow \omega=\sqrt{\dfrac{9.81}{0.695\times 6.75}}\\\Rightarrow \omega=1.45\ \text{rad/s}[/tex]

Converting to rev/s

[tex]\dfrac{1.45}{2\pi}=0.231\ \text{rev/s}[/tex]

The number of revolutions of the cylinder is 0.231 rev/s.

Answer:

It is correct

Explanation:

Given dimension is:

                            Nm² kg⁻²

To find the dimension of the universal gravitational constant, let us state the law of universal gravitational constant.

"every particle attracts every other particle with a force that is directly proportional to their masses and inversely proportional to the mass between them".

  F = [tex]\frac{Gm_{1} m_{2} }{r^{2} }[/tex]

F is the force

G is the universal gravitation constant

m is the mass

r is the distance between them

Using the dimension;

          N  = [tex]\frac{G x kg x kg}{m^{2} }[/tex]

         Nm² = Gkg²

  Unit of G = Nm² kg⁻²

Answer:

A) Year

B) Number of Wolves

C) Bar graph

D) Year

Explanation:

A) The year is always definite; it never depends on any other variable. The number of wolves doesn't change the year.

B) The number of wolves depends on variables like food, water, shelter, ect. The number of wolves isn't magical and just change on its own.

C) I think a bar graph will work best best it shows a more visual representation of the number of wolves. A line graph can be confusing with how proportional and scattered the data is, and a scatterplot diagram would be better if you were tracking the number of wolves and another variable, like available food or something like that. With the given data, to me, a bar graph makes the most sense.

D) The independent variable tends to always be what x stands for, and the dependent variable always tends to be what the y stands for. Since the year is our independent variable, and our x is the year, we can name the x axis "Year." Its simple, but it works.

I hope this helps!

Answer:

1800 years

Explanation:

300*12=3600 (which is feet to inches)

3600/2=1800 (is the answer because it's 2 inches per year)

Answer:

Natural gas, coal, petroleum

Explanation:

Answer:

true

hopefully, it's right

Answer:

true

Explanation:

hopefully this is what you needed

Answer:

You should split your money wisely. Keep some in a savings and keep some in a checking account. Save for emergencies and rainy days.

Explanation:

Answer:

The answer is c

Explanation:

If the elevator is moving upward gravity is pushing downward however once the elevator starts to descend gravity is pushing upward causing the box to move.

Answer:

It would be balanced

Explanation:

Answer:

C) ballon does determine the direction

Explanation:

Explanation:

its B, It would push it the opposite

Answer:I need this answer tooooo

Explanation:

Answer:

A resultant is the sum of two (or more) vectors.

2. To add vectors, place the vectors such that the tail of the second vector is placed

at the head of the first vector. Draw a resultant vector from the tail of the first

vector to the head of the second vector. Using the Pythagorean theorem,

calculate the magnitude of the resultant vector. Use geometry or a protractor to

determine the angle of direction of the resultant vector.

Explanation:

Answer:

i think its false

Explanation:

A zero acceleration is the fundamental characteristic of an object in equilibrium.

Answer:

True

Explanation:

If its moving at a constant velocity its acceleration is zero. An zero acceleration is the the fundamental characteristic of an object in equilibrium