If you are asked to determine an object’s speed, what information must you have?A. distance and period of time

B. distance and change in position

C. period of time and direction

D. distance and direction

Answers

Answer 1

Answer: A) distance and period of time

The speed of an object is equal to the distance it travels divided by the amount of time it takes to travel the distance.

This measures the average speed

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What is the main fuel consumed in the core of a red giant?a. H
b. C
c. Fe
d. He

Answers

What is the main fuel consumed in the core of a red giant?
The main fuel consumed in the core of a red giant is He or helium. The answer is letter D.

Using a candle as the object on an optical bench set up as shown in the diagram. What two measurements must be taken in order to find the focal length of the lens?

Answers

Answer:

When you view the candle with a lens, located at a distance D of the candle, you will see an inverted image of the candle, and this image of the candle may be a little distorted. At this point you need to change the distance between the observer (you) and the lens.

When the image of the candle is nitid (this means that the image is focalized)

You need to measure the distance between the lens and the observer. suppose that this distance is d.

(this process is usually written as: If the actual height of the candle is H, you need to record the distance where the image of the candle also has a height H)

Now, the focal point of the lens will be obtained with the lens maker equation:

1/D + 1/d = 1/f

where f is the focal point of the lens.

A 1200 kg automobile is traveling at a velocity of 100 m/s is its energy potential or kinetic? How much energy does it possess?

Answers

The energy possess is 6,000,000 J

The kinetic energy is a energy by which an object can move and potential energy is a stored energy which depends upon the relative position of various parts of the body.

Given:

The mass of automobile is $m=1200\:\rm kg$ .

The velocity of the automobile is $100\;\rm m/s$ .

How to calculate potential energy and kinetic energy?

Write the formula to calculate the potential energy of the body.

$P.E=mgh$

Since the automobile is on ground so the height $h$ will be 0.

$P.E=1200* 9.81* 0\nP.E=0$

Write the formula to calculate the kinetic energy.

$K.E=(1)/(2)mv^2$

Substitute the value.

$K.E=(1)/(2)* 1200* 100^2\nK.E= 6,000,000 J.$

Learn more about potential energy and kinetic energy follow below link:

brainly.com/question/11879644

Answer:

6,000,000 J (6 million)

Explanation:

Refer to the equations for potential and kinetic energy.

$KE = (1)/(2)mv^(2)\nPE = mgh$

Because the automobile is on the ground (it does not give a height above the ground, therefore we can assume that it is on the ground), height = 0. If you plug in 0 for h in the potential energy equation, we get PE = 0 J.

Therefore, all of the energy is kinetic. Plug in the given information into the kinetic energy equation. M = 1200 kg and v = 100 m/s

$KE = (1)/(2)mv^(2) = (1)/(2)(1200)(100^(2)) = 6,000,000\ J$

An element's atomic number is 93. how many protons would an atom of this element have? ???? protons

Answers

Neptunium. Atomic mass 237. 93 protons.

Which body part belongs to the circulatory system?

Answers

Oh, I just realized you asked for a body part, and there is only one body part in the circulatory system, my bad. That would be the heart. But, it also contains veins, arteries, capillaries, and blood. It's main function to pump blood to supply oxygen to the body.

Hope this helps!

the would be ((((((heart )))))) the main part hoped i helped

If the activation energy for a given compound is found to be 103 kJ/mol, with a frequency factor of 4.0 × 1013 s-1, what is the rate constant for this reaction at 398 K?