The best lead to describe a bacteria cell

Answers

Answer 1
Answer:

Hi Kayila :)


The best lead to describe a bacteria cell are

1) It has a cell wall

2) it has a cytoplasm

3) It doesn't have no mostly

4) It has a cell membrane


I hope that's help and have a good evening :)



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Q1. In a 100m track event, the time taken by four runners is 10 sec., 10.2 sec., 10.4 sec and 10.6 sec. Find the ratio of their speed.

Answers

distance (s)=100m
time
T₁=10
T₂=10.2
T₃=10.4
T₄=10.6
by v=(s)/(t)
we get
V₁=(100)/(10)
V₁=10m/s

V₂=(100)/(10.2)
V₂=9.8m/s

V₃=(100)/(10.4)
V₃=9.61 m/s

V₄=(100)/(10.6)
V₄=9.43 m/s

V₁:V₂:V₃:V₄ = 10 : 9.8 : 9.61 : 9.43

A particle is moving in a circular path of radius r . The displacement after half a circle would be

Answers

Answer:

2r

Explanation:

As we know that

The displacement is the total distance measured between the initial or start and final or destination point

If particle cover half path of the circle, the displacement can easily find out by considering the distance between the start and destination point

We attached the diagram for better understanding

As per the diagram.

The displacement after half-circle is

AB = OA + OB

= r + r

= 2r

Why does cupping your hand around your ear improve your hearing?

Answers

it allows your ears to receive more sound waves

Answer:

Catch the wave.

The shape and curves are designed to capture sound waves from various directions and funnel them into the ear to start vibrating those ossicles. Cupping your hand behind the ear and pulling it forward makes sounds louder because your hand is snagging more sound waves.

Explanation:

It will receive more sounds

Common units of measurement for speed.

Answers

miles per hour (mph or miles/h), kilometers per hour (km/h), or meters per second (m/s).
Miles, kilometers, meters

This experiment is to see if water flows faster out of a smaller can or a larger can. You will need:

• two cans (one quite small like a soup can and the other large, like a juice, can.)

Follow these steps:

A. Remove the top of each can. Punch a hole in the side of each can, very close to the bottom, making sure the holes are equal in size. Cover each hole with a piece of tape, and place the cans next to the sink.
B. Put water in both cans, making sure the water is at the same level - different amounts, but the same level. Turn the cans so the holes are facing into the sink, and remove the tape at the same time. Answer these questions: Do the streams of water shoot out at the same distance? Why or why not?
C. Try the same experiment, but this time put one cup of water in each can. What happens to the streams of water now?
D. Try the same experiment, but this time fill both cans to the top. What happens to the streams of water?



ANSWER A B C AND D CORRECTLY!!!

Answers

the water flows faster out of a smaller can than it does a larger can.

Answer:

A&B: The stem of the water does not shoot out the same distance because one can have less water and the other can have more water and the can with less water have more pressure that making the can shoot out further than the can with more water.

C: Less water will come out of the two cans because they are compressed together so all of the water is trying to come out all at the same time.

D:All of the water in the can started coming out all in one small stream.

Explanation:

When water condenses onto the grass in the early morning when the air is clear

Answers

it is called dew which is when water condenses onto the grass in the early morning.