1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
salantis [7]
2 years ago
14

Help Please! a lot of points for 3 questions

Physics
1 answer:
s344n2d4d5 [400]2 years ago
4 0

Answer:

1. Point 2.

2. Either #1 or #4 (sorry, I'm not 100% sure).

3. I'm pretty sure #3.

I hope this helps!

You might be interested in
Friction is generated when _____ interact with each other on sliding surfaces.....  solids ,molecules, forces ,fluids
Katarina [22]
The answer is "Molecules"

Friction is generated when "Molecules"  interact with each other on sliding surfaces. 
4 0
3 years ago
Read 2 more answers
Please I need help with
Svetlanka [38]
Of chromosomes each cell type has different genes Althea answer is the three answer in the picture
4 0
3 years ago
Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 20 cm apart. The sound
Sophie [7]

Answer:

a. Wavelength = λ = 20 cm

b. Next distance of maximum intensity will be 40 cm

Explanation:

a. The distance between the two speakers is 20cm. SInce the intensity is maximum which refers that we have constructive interference and the phase difference must be an even multiple of π and equivalent path difference is nλ.

Now when distance increases upto 30 cm between the speakers, the sound intensity becomes zero which means that there is destructive interference and equivalent path is now increased from nλ to nλ + λ/2.

This we get the equation:

(nλ + λ/2) - nλ = 30-20

λ/2 = 10

λ = 20 cm

b. at what distance, sound intensity will be maximum again.

For next point calculation for maximum sound intensity, the path difference must be increased (n+1) λ. The distance must increase by λ/2 from the point of zero intensity.

= 30 + λ/2

= 30 + 20/2

=30+10

=40 cm

7 0
3 years ago
what is the main difference between a substance going through a physical change and one going through a chemical ?
Ainat [17]

Answer: Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

3 0
2 years ago
Read 2 more answers
The main difference between a chest and a bounce pass is what?
snow_lady [41]

Answer: The main difference between the three is the mode of transmission. The chest pass is straight through the air towards your teammate. While the bounce pass is directed toward the ground and then at your teammate. Finally, the overhead pass is projected high in the air to avoid defenders.

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Six automobiles are initially traveling at the indicated velocities. The automobiles have different masses and velocities. The d
    10·2 answers
  • Approximately how many asteroids that are 0.98 km in radius would it take to make a planet which has a radius of 6420.0 km
    9·1 answer
  • Two charged objects are separated by some distance. the charge on the first object is greater than the charge on the second obje
    5·2 answers
  • What can accurately be said about a resultant wave that displays both reinforcement and interference?        A. Molecules remain
    15·2 answers
  • What is the freezing point of copper
    15·1 answer
  • How high has a 45 g golf ball been driven if it has a potential energy of 2.06 J?
    7·2 answers
  • Continental drift is______?
    8·1 answer
  • WILL MARK BRAINLIST IIF U GIVE ME CORRECT ANSWERS
    15·2 answers
  • Jump rope with a double jump. As you bring the jump rope in front of you, cross your right arm over your left. For the next jump
    6·2 answers
  • URGENT
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!