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NeTakaya
2 years ago
12

Which choice is not an example of a molecule? A:NC13 B:H₂O2 C:03 D:F

Physics
1 answer:
Jlenok [28]2 years ago
4 0

Answer: D. F

Explanation:

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A tennis ball is thrown with a downward velocity of 2.00m/s off a cliff. It takes 6.10 seconds for it to hit the ground. How tal
tatyana61 [14]

Answer:

6.09m tall

Explanation:

use this;

U²=2as

4 0
3 years ago
Eric a chemist is running tests with four unknown elements he has found that they all bond the same way so he knows that they ar
nasty-shy [4]

The elements most likely are halogens because if we talk about manner of bonding they all are diatomic molecules and need one electron to fill their outermost shell. That is why they bond with other atom of own type and exist as diatomic molecule in pure state. However, all halogens are so reactive that they react with metals through strongest type of ionic bonds and form salts.

They all tend to form salts when they react with metals like NaCl and that is why they are commonly known as salt dormers.

They perfectly show significant trends in some properties like atomic radius increases from top to bottom, boiling and melting temperature increase down the group and electronegativity value decrease from top to bottom.

The elements belong to group 17.

Hope it helps!

6 0
3 years ago
Read 2 more answers
A student pulls a 50-newton sled with a force having a magnitude of 15 newtons. What is the magnitude of the force that the sled
Simora [160]

Answer:

Force = 35 N

Explanation:

From Newton's third law of motion, the boy must apply a force greater than the weight of the sled to lift it.

weight of sled = mg

where m is its mass and g the force of gravity on it.

weight of sled = 50 N

Force applied by the boy on the sled = 15 N

Since the force applied on the sled by the boy is lesser than the weight of the sled, then;

Force that the sled exerts on the student = 50 - 15

                                             = 35 N

The force exerted by the sled on the student is 35 N.

5 0
3 years ago
The static friction force is
blagie [28]

Answer:

The answer is the third option, the minimum force required to overcome static friction and move an object.

Explanation:

The first choice is talking about an object moving, and anything moving relates to <em>kinetic </em>friction, not static friction. I don't think it's the fourth option because, even with the net force being 0, the object could still be moving (again relating to kinetic friction).

3 0
4 years ago
If you want to calculate the acceleration of a car, you should _____ the change in velocity of the car by the time interval.
Neporo4naja [7]

Answer:

Your awnser is B. Increase

Explanation:

5 0
3 years ago
Read 2 more answers
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