What happens when a glass rod and silk cloth are rubbed with each other?
Answer:
When glass rod is rubbed with silk, glass h lose electrons easily and silk grabs them away from the glass atoms. So after rubbing, the glass becomes positively charged and the silk becomes negatively charged
Explanation:
Answer:
After rubbing them together, the glass becomes positively charged and the silk becomes negatively charged.
After watching the Flocabulary video, what do you now know about Charles Darwin and his theory of natural selection? (complete sentences for full credit)
ASAP PLEASE
The diagram shows the Earth rotating on its axis. The two star symbols show different locations on the surface... What would the sky look like to a person standing at point Y? *
Sunrise
Middle of the day (noon)
Sunset
Middle of the night (midnight)
Answer:
middle of the day (noon)
You set up an experiment by placing a laser pointer where its light hits the opposite wall in a marked spot. Your friend then sets up an obstacle in the light beam's path and asks you to use mirrors to redirect the beam around the obstacle so it hits the wall in the same place. What is the minimum number of mirrors you could use to do this, assuming the laser pointer must remain still?
three
two
one
four
Answer:
two
.....................
PLEASE HELP
4. According to the scientific theory of atoms, which of the following statements best
describes the location of
electrons?
A. in the nucleus of the atom
B. both in the nucleus and around it
C. outside the nucleus and often far from it, in the electron cloud
D. outside the nucleus, yet very near it because they are attracted to the protons
Answer:
D. Outside the nucleus, yet very near it because they are attracted to the proton
Explanation:
PLEASE HELP!! CORRECT ANSWER GETS A BRAINLIEST
A -- doesn't deal with the question of what to do about it once it's there.
B and C -- don't prevent it from happening, OR deal with it when it does.
D -- faces the fact that it can't be prevented, and comes to grips with the question of how to minimize the damage when it does happen.
The honest, effective choice is ' D ' .
Convection currents form when warm air rises and cold air sinks. What causes the warm air to rise and the cold air to sink?
difference in weather
difference in climate
difference in density
none of the above
5 To fight a bacterial infection, a patient was given an antibiotic to take for 10 days. After the
patient finished taking the antibiotics as directed, almost all the bacteria were killed. After
another 10 days, the patient was sick again with the same type of infection.
What most likely happened?
A A few bacteria survived the antibiotics and stopped reproducing.
B The patient’s high fever inactivated the antibiotic, allowing the surviving bacteria to grow rapidly.
C The antibiotic slowed the life cycle of the bacteria.
D Some of the bacteria were resistant to the antibiotic, and they reproduced.
This is science :)
"Amber studied a graph of a mechanical wave. If she wanted to find out the wavelength, from which points should she measure"
Which location shows SUMMER in the SOUTHERN hemisphere? *
Location 1
Location 2
Location 3
Location 4
Answer:
4
Explanation:
the southern hemisphere is tilted closest to the sun in that position