What is the purpose of zigzag line on a periodic table ?

Answers

Answer 1
Answer: The zigzag line on the periodic table separates the metals from the nonmetals. 

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A rural mail carrier logged the mileage on the odometer at the start of the mail route as 31,500 miles. After 6.5 hours, the carrier returned the truck and recorded the mileage at 31,713 miles. What was the average velocity of the mail truck? Explain your reasoning.
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10. A loud motorcycle passes by the front of Bill's house. What mediumdoes the sound wave travel through to get from the motorcycle to Bill'sears?Answers:•air•energy•vacuum•large vibrations

When parts of your body functions as lever systems, what part supplies the force?

Answers

Muscles supply the force.  They exert force by getting shorter (contracting).
A muscle can't get longer by itself.  There needs to be another muscle
pulling in the opposite direction.

What environmental effects are shared by all fossil fuels

Answers

fossil fuel can cause global warming and greenhouse effects on our earth
one main is climate change or global warming as you can call it

a truck with a mass of 1150 kg and a velocity of 13 m/s collided into a parked car with a mass velocity does the car move forward after the collision

Answers

Answer:

Yes

Explanation:

The truck has momentum since it is moving and momentum is a product of mass and velocity. After impact, part of momentum that the truck had is transferred to the car hence the car initially at rest moves a significant diatance. Here, we utilize the formula MV= (m+M)v where M and V represent mass and velocity of the truck while m is the mass of car, v is the common velocity. Note that some letters are capital while others small, don't confuse these.

If an object is placed at a distance greater than twice the focal length of a convex lens, what type of an image will be produced?A. real, upright, and enlarged
B. virtual, Inverted, and small
C. real, Inverted, and small
D. virtual, upright, and enlarged

Answers

Answer:

real,inverted,and small

How does mass effect my room?

Answers

It is by how much weight there is in your room and what can make your room the double sized of your whole room.

In 3-5 sentences, use your own words to explain how electricity gets from power plants to our homes.Use the "RAP" method to answer this question:

Restate the question
Answer the question
Prove your answer citing textual evidence from the course.
Don't forget to proofread your answer.

Answers

Answer:

so your wondering how electricity goes from power plants to your home? well, here's why.The electrical charge goes through high-voltage transmission lines that stretch across the country. It reaches a substation, where the voltage is lowered so it can be sent on smaller power lines. It travels through distribution lines to your neighborhood.

Electricity goes from power plants to our homes through a step-down transformer. This helps the voltage to be lowered because electricity has to have high amounts of voltage to travel. So once it’s been lowered, electricity gets transferred to smaller wires that connect to our outlets.