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
Sedbober [7]
3 years ago
13

James is planning a science fair project on sound waves. He places an alarm inside a jar which he can remove the

Physics
1 answer:
ss7ja [257]3 years ago
7 0

Answer:

D

Explanation:

this is simple, because when air is removed, means that there is no particles in the jar so vacuum is achieved, and when you can't hear a sound means that the sound couldn't travel through the vacuum. which means that sound cannot travel through vacuum,

as a result, sound requires a medium ( air) travel from one point to another.

hope it helps, if not please report it so that someone else gets to try it

You might be interested in
A radio telescope has a circular collecting dish of diameter 5.0 m. It is used to observe two distant
Likurg_2 [28]
Skskdidododododoorrororo
3 0
3 years ago
What is a asteroid traveling rapidly called​
SCORPION-xisa [38]

Answer:

meteor

Explanation:

A asteroid stays still and a meteor goes fast

4 0
3 years ago
Read 2 more answers
The weight of an objects can be calculated by multiplying mass by
Lana71 [14]
Acceleration due to gravity. 
7 0
3 years ago
Read 2 more answers
Where in our daily lives do we encounter "background" radiation​
Tcecarenko [31]

Answer:

Explanation:Naturally occurring radioactive materials are present in its crust, the floors and walls of our homes, schools, or offices and in the food we eat and drink. There are radioactive gases in the air we breathe. Our own bodies - muscles, bones, and tissue - contain naturally occurring radioactive elements.

8 0
3 years ago
The figure shows three displacement vectors, which are
aleksley [76]

Answer:

the correct answer is D

Explanation:

In this exercise, the vectors are in the same west-east direction, so we can assume that the positive direction is east and perform the algebraic sum.

       R = δ + ε

where

       δ = 2.0 m

       ε = 7.0 m

the positive sign indicates that it is heading east

        R = 2.0 + 7.0

        R = 9.0 m

the direction is east

the correct answer is D

8 0
3 years ago
Other questions:
  • The irreversible thermite reaction (Fe2O3 + 2 Al --> 2 Fe + Al2O3) is highly exothermic, changing the temperature by over 100
    12·1 answer
  • Stacy travels 5 times as fast as Eric. Traveling in opposite directions, they are 336 miles apart after 4 hours. Find their rate
    6·1 answer
  • Jeremy accidently dropped his toy stuffed animal from the balcony of his apartment on the fourth floor. The toy hit the ground a
    15·2 answers
  • What type of circuit is illustrated?A)closed series circuit
    15·2 answers
  • A simple electric motor consists of a 220-turn coil, 4.4 cm in diameter, mounted between the poles of a magnet that produces a 9
    10·1 answer
  • One kg of air is contained in a piston-cylinder system and it undergoes a Carnot cycle having an efficiency of 60%.The heat tran
    14·1 answer
  • can someone help me answer this correctly in the next 20 minutes? I’ll give out a brainliest if you can answer it right :)
    13·1 answer
  • An object accelerates 1.3 m/s2 when a force of 3.7 newtons is applied to it. What is the mass of the object?
    11·1 answer
  • Two 1-kg objects, C and D, increase in temperature by the same amount, but the
    6·1 answer
  • A baseball (m=145g) traveling 39 m/s moves a fielder's glove backward 23 cm when the ball is caught.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!