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
AURORKA [14]
3 years ago
15

Question 4 (1 point)

Physics
1 answer:
irina1246 [14]3 years ago
3 0

Answer:

B

Explanation:

v=349m/s

d=vt

d=349*3

d=1047m

WHY 349??

Because, velocity of sound increases about 0.6 m/s for every 1 degree celsius rise in temp.

Velocity of sound is about 343 m/s at 20 degrees C, so 0.6*10=6 more m/s, or 349 m/s. Kinda cool how temperature alters the speed of sound!

You might be interested in
Draw equipotential lines near the positive and negative charges below with dashed lines. b) Draw solid electric field lines base
pychu [463]

Answer: find the attached figure for a and b

Explanation:

A) The second figure depict electric field lines and equipotential lines for two equal but opposite charges. The equipotential lines can be drawn by making them perpendicular to the electric field lines. The potential is greatest (most positive) near the positive charge and least (most negative) near the negative charge.

B) The figure attached depicts an isolated point charge Q with its electric field lines in blue and equipotential lines in green. The potential is the same along each equipotential line, meaning that no work is required to move a charge anywhere along one of those lines. Work is needed to move a charge from one equipotential line to another. Equipotential lines are perpendicular to electric field lines in every case.

Please find the attached file for the figure

5 0
3 years ago
*PLEASE HELP WILL GIVE BRAINLIEST*
levacccp [35]

Answer: The order is 2,1,5,4,3

Explanation: Hope This helps.

3 0
3 years ago
A compound microscope has an objective lens of focal length 1.40 cm and an eyepiece with a focal length of 2.20 cm. The objectiv
olchik [2.2K]

Answer:

magnification is - 159

objective distance is 3.85 cm

Explanation:

Given data

focal length f1 = 1.40 cm

focal length f2 = 2.20 cm

separated d = 19.6 cm

to find out

angular magnification and How far from the objective

solution

we know magnification formula that is

magnification = ( - L / f1 ) (D/f2)

here D = 25 cm put all value

magnification = ( - 19.6 / 1.40 ) (25/2.20)

magnification = - 159

and

now we apply lens formula

i/f = 1/q + 1/p

p = f2 = 2.20

so

q = f2 p / p -f2

q = 1.4(2.20) / ( 2.2 - 1.4 )

q = 3.85 cm

so objective distance is 3.85 cm

3 0
3 years ago
Need help transforming one formula to another!
Sindrei [870]

Hello! I don't know if this will help you any but I worked it out, got nothing on it. So, I just had my twin help me and he had nothing either. But, this is just how to find the transformation. Seems like this is already complete to me.

To find the transformation, compare the equation to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Parent function : y=√a

Horizontal shift : None

Vertical shift : none

Reflection about the x-axis : none

Vertical stretch : Stretched.

I am so sorry if this doesn't help you but to me, in both my eyes and my brother's eyes, this already looks complete. I hope this helps you out. Again, so sorry if it doesn't.

-Karleif ☺

5 0
4 years ago
A(n) _________ is a line joining the points of equal magnetic declination. Contour line isohyet isotherm isomag isogonic line
irga5000 [103]

Answer:

Isogonic line is a line joining the points of equal magnetic declination.

Explanation:

Isogonal line is a line that joins the places of equal declination. Also isogonal line is known as the line which connects the point having the same magnetic declination.

4 0
3 years ago
Other questions:
  • Find the momentum of a 25 kg object traveling at a speed of 4 m/s
    12·1 answer
  • How much more light can the James Webb Space Telescope (with its 6-m diameter mirror) gather than the Hubble Space Telescope (wi
    12·1 answer
  • What is a common way to correct nearsightedness?
    9·2 answers
  • Question 1 (13 marks) A charge Q is located on the top-left corner of a square. Charges of 2Q, 3Q and 4Q are located on the othe
    12·1 answer
  • In February 2004, scientists at Purdue University used a highly sensitive technique to measure the mass of a vaccinia virus (the
    6·1 answer
  • A rocket blasts off from the Earth's surface. During the initial phase of flight, the engine of the rocket burns fuel at a rate
    9·1 answer
  • If 40 N force is exerted by a box covering 2 metre square area, calculate pressure.
    12·1 answer
  • Need help on this,<br>will mark brainliest if you answer.<br>​
    5·1 answer
  • how do humans judge temperature without the use of instruments such as thermometers? choose the most common process.
    5·1 answer
  • Someone stands at the edge of a cliff 15 m high. He drops a ball. How fast is the ball moving at the foot of the cliff, just bef
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!