If the slope of a position versus time graph is downward what kind of motion produced the graph

Answers

Answer 1

Answer: If the position vs time graph is sloping downward, that says that the position is
getting smaller as time goes on. That means that the object is approaching
the place where you're measuring position from.

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A candy bar supplies your muscles with energy. If your muscles are 40% efficient, how much work can they perform if the candy contains 800 J?

Answers

Answer:

The muscles can perform 320 J of work.

Explanation:

Let the work performed by the muscles be $W_(out)$ J.

Efficiency of a body is given as the ratio of useful work to that of work supplied.

Here, the work provided by the candy bar is, $W_(in)=800\ J$

Efficiency of the muscles is, $\eta =40\%=0.40$

Now, we know that,

$\textrm{Efficiency,}\ \eta=(W_(out))/(W_(in))\n0.40=(W_(out))/(800)\nW_(out)=0.40* 800=320\ J$

Therefore, the work performed by the muscles is 320 J.

Use Newton's first law of motion to explain why air bags in cars are important during head-on collisions.

Answers

Newton's First Law of Motion, or the Law of Inertia, states that objects at rest will stay at rest, or object in motion will stay in motion, unless acted upon by an outside force. Therefor if a person is riding in a car going 80mph, and the car crashes head-on, the car will stop, but the person will keep moving at 80mph until it too is acted upon by an outside force, in this case the air bag. If there was no air bag, the person would collide with the car's dashboard or windshield.

In a periodic table, dots around an elements symbol indicate the number of valence electrons in an atom ? True Or False

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That is absolutely true!

The dots are electrons that are in the orbitals.

I would probally say true? I am not positive

HELP PLEASE ASAP!! I will five 46 POINTS.!!!!Which statement below is true based on the graph?

A) line segment AB is showing the cart traveling at 10 m/s.

B) Line segment CD is showing acceleration as the line has a straight increasing slope.

C) Line segment DE is showing the cart is traveling at a constant rate.

D) Line segment BC is showing acceleration as the cart is increasing its speed.

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connexus! Answer b...

The answer is B.......

Help with just the ones that are not filled in pls

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For question 5: the solute is the stain and the solvent is the alcohol

6. Sugar is the solute and tea is the solvent

7. The tea leaves in the tea bag is the solute and the water is the solvent

General rule is that the solute is the one that needs to be dissolved and the solvent is the one that dissolves the solute. Hope its clear

What 2 Tacoma make up the scientific name

Answers

Genus, species.
In that order.

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