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
solong [7]
3 years ago
12

Need help its do today

Physics
1 answer:
dimulka [17.4K]3 years ago
4 0

Answer:

the answers for the first 3 are

C

A

C

Explanation:

You might be interested in
Because of changes over time, the most accurate weather forecasts are: A) analog forecasts. B) long-term forecasts. C) seven-day
blondinia [14]
The answer is analog forecasts
8 0
3 years ago
Read 2 more answers
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel u
amid [387]

Answer:

L = 96.2 dB

Explanation:

As we know that the level of intensity is given as

\beta = 10Log(\frac{I}{I_o})

here we know

\beta = 104 dB

104 = 10Log(\frac{I}{10^{-12}})

I = 0.025 W/m^2

now the sound is travelling in all possible directions so we have

\frac{I_1}{I_2} = \frac{r_2^2}{r_1^2}

\frac{0.025}{I_2} = \frac{10^2}{4.1^2}

I_2 = 4.2 \times 10^{-3} W/m^2

now for level of sound we have

L = 10Log(\frac{4.2 \times 10^{-3}}{10^{-12}})

L = 96.2 dB

5 0
3 years ago
To do work, this truck uses energy stored in chemical
GREYUIT [131]

800 J Got it right on edgenuity

4 0
3 years ago
What’s the purpose of life?
Alborosie
Purpose of life is to explore and get experience. Another reason is to love and let what makes you happy guide you
5 0
4 years ago
Give the atomic mass and atomic number of this atom.
Soloha48 [4]
I think it would be sodium.

Because the atomic mass is protons + neutrons, so I did 6 + 5 = 11
Then I looked on the periodic table for an element with the atomic mass of 11 and it was Na... Sodium.
4 0
3 years ago
Other questions:
  • In a series of rock layers, a geologist finds fossils of a pine trees and oak trees in layers that are 1.0 m and 1.5 m deep. How
    13·1 answer
  • Diagnostic ultrasound of frequency 3.82 MHz is used to examine tumors in soft tissue. (a) What is the wavelength in air of such
    9·1 answer
  • A pump steadily delivers water through a hose terminated by a nozzle. The exit of the nozzle has a diameter of 2.5 cm and is loc
    8·1 answer
  • The acceleration due to gravity on Jupiter is 23.1 m/s2, which is about twice the acceleration due to gravity on Neptune. Which
    7·2 answers
  • Why do some things stick together and others do not?
    15·1 answer
  • A ball is released from a hot air balloon moving downward with a velocity of
    12·1 answer
  • What are the similarities and differences between light waves, water waves, and sound waves?​
    12·1 answer
  • !!please help !!!!! I’ll give brainliest
    11·2 answers
  • Hello,help me with this out please i need it hurry but please ensure your answer is correct..I attach here with my question.
    14·1 answer
  • A 1000-kg sports car of mass accelerates from rest to 20 m/s in 6.6 s. What is the frictional force exerted by the road on the c
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!