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
butalik [34]
3 years ago
8

1) What do u meant by photophone ?

Biology
2 answers:
Viefleur [7K]3 years ago
7 0

Answer:

June 3, 1880. You may know that a telephone uses electricity to send voice communications. However, you may not know that the man who invented the telephone, Alexander Graham Bell (1847-1922) had another invention that used light to transmit sound. He called it the photophone.

Explanation:

Debora [2.8K]3 years ago
3 0

jab Nye miljate hai tab purane boj lagne lagte hai !

You might be interested in
In a study of proteins mediating cell membrane transport, microbiologists measure current versus time through the cell membranes
MrRa [10]

Answer:

Q(0) = 0C, Q(1) = 264nC, Q(2) = 952C Q(3) = 2088nC, Q(4) = 3696C Q(5) = 5800nC

Explanation:

I = 4t³ + 200t² + 60t

But charge of an object =》 Q = IT

Charge of an object is the product of the current and the time in which the current passes through the membrane.

When t = 0

Q = 4(0)³ + 200(0)² + 60(0) = 0C

When t = 1

Q = 4(1)³ + 200(1)² + 60(1) = 264nC

When t = 2

Q = 4(2)³ + 200(2)² + 60(2) = 952nC

When t= 3

Q = 4(3)³ + 200(3)² + 60(3) = 2088nC

When t= 4

Q = 4(4)³ + 200(4)² + 60(4) = 3696nC

When t = 5

Q = 4(5)³ + 200(5)² + 60(5) = 5800nC

3 0
4 years ago
Read 2 more answers
Why do we do science?
laiz [17]

We do science because if we didn't we would not know a lot of the things we do know now.

7 0
3 years ago
Read 2 more answers
How would photosynthesis be affected if growth did could not take place in a plant?
FinnZ [79.3K]

Extra carbon can only lead to extra growth if plants have a use for it

8 0
3 years ago
MARKING AS BRAINLIST
Nezavi [6.7K]

Answer: True.

Explanation: Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. ... In cellular respiration, glucose and oxygen react to form ATP.

5 0
4 years ago
Read 2 more answers
List two main functions of Proteins
dezoksy [38]
1. Balances fluids.
2. Structure. Support for tissues.
6 0
3 years ago
Other questions:
  • What description of DNA replication is correct?
    5·1 answer
  • Is the following sentence true or false? The rock cycle is produced by forces inside the Earth and at the
    13·1 answer
  • Sample Response: When there is less rainfall, land,
    15·1 answer
  • Which structure would be unaffected by the peripheral nervous system?
    12·1 answer
  • Which one(s) contribute the most to the mass of a plant? I. Soil II. Carbon III.Water A) I only B) II only C) I and III only D)
    7·2 answers
  • Which of the following scenarios refutes the argument that genes are entirely internally influenced?
    12·1 answer
  • Heart rate decreased suddenly and then MAP immediately fell because peripheral blood vessels were extensively vasodilated. The b
    13·1 answer
  • Cilia are composed of microtubules. How are microtubules different from the other cytoskeletal filaments?
    14·1 answer
  • What is the process by which animals change over time
    11·1 answer
  • What is one specific example of negative feedback in the human urinary system?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!