answer.
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
tiny-mole [99]
2 years ago
11

Suppose that the light from the pinhole projects onto a screen 3.00 meters away. What is the radius r1 of the first dark ring on

that screen? Notice that the angle from part a is small enough that sinθ≈tanθ.
Mathematics
1 answer:
Fittoniya [83]2 years ago
3 0

Answer:

16 mm

Step-by-step explanation:

The next information is misssing: The first dark ring can be found at angle 0.305 degrees.

A rigth triangle is formed in wich one leg is the radius r1 of the first dark ring and the other leg is the distance between the screen and the laser (L), which is equal to 3 meters.

Using the relationship sinθ≈tanθ we get:

tanθ = r1/L

tan 0.305  = r1 / 3

r1 =  tan(0.305°) * 3 m

r1 = 0.016 m = 16 mm

You might be interested in
How many solutions does the nonlinear system of equations graphed below have?
k0ka [10]

Answer:

B) 2

Step-by-step explanation:

There are 2 points of intersection

3 0
2 years ago
Read 2 more answers
Sasha is bisecting a segment. First, she places the compass on one endpoint, opens it to a width larger than half of the segment
FrozenT [24]

Answer:

A) Swing arcs on both sides to intersect the first two arcs created.

Step-by-step explanation:

Bisecting a segment is cutting a line into two equal parts with a line bisector.

The steps involved are;

  • Placing a compass on one endpoint
  • Opening the compass to a width larger than half of the segment
  • Swinging an arc on either side of the segment
  • While maintaining the same width, place the compass on the other endpoint
  • Swing arcs on both sides of the segment to intersect the first two arcs created
  • Using a ruler placed at the points of intersection of the arcs, draw the line bisector.

Sasha was now at step four.

7 0
2 years ago
Read 2 more answers
Ben has 18 pears. Sophia has a number of pears two less than Ben. How many pears Sophia has?
Serggg [28]
18 pears subtract by 2 wich will equal 16 pears...

18-2=16
7 0
2 years ago
Read 2 more answers
Gabriel makes a model of a pyramid with the dimensions shown. A square pyramid. The square base has side lengths of 12 inches. T
Blizzard [7]

Answer:

The area of the square base is 114 in. 2

The area of each triangular face is 66 in. 2

Gabriel will need 408 in. 2  of paint

8 0
2 years ago
Read 2 more answers
a rectangle pyramid fits exactly on top of a rectangular prism. the prism has a length of 18 cm, a width of 6 cm, and a height o
irina1246 [14]
To find the volume of the prism you are going to use the formula  V=WxLxH.
When you plug in your numbers you should get V= 18x6x9 which ends up equaling 972.

Now that you have that you need to find the volume of the pyramid using the formula V= L x W x H /3 and when you plug that in it looks like
V= 18 x 6 x 15 /3

Upon simplifying that you get 540.

Now you have the volume of your rectangular prism and your rectangular pyramid add them together and you should get 1512



I recommend drawing it out... it helps a lot:)
4 0
2 years ago
Other questions:
  • Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he raked 2 bags of leaves. How much money did he earn?
    8·2 answers
  • In triangle ABC m A=45 m B=65 and c=20 find b. Round to the nearest tenth.
    8·2 answers
  • A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel
    10·1 answer
  • Rewrite the proportion 7:21 = 3:9 as a proportion using fractions.
    12·2 answers
  • Dylan can paint a wall in 4 hours, while Brett can paint the same wall in 3 hours. If Dylan paints the wall for 2 hours, how muc
    12·1 answer
  • Which table has a constant of proportionality between yyy and xxx of 0.60.60, point, 6?
    9·1 answer
  • Based on 20 samples, the average resistance is 25 ohms and the sample standard deviation is 0.5 ohm. Determine the 90% confidenc
    14·1 answer
  • At science camp, the kitchen served half of their blueberries with breakfast. After dinner, they put the remaining 5{,}270 \text
    5·1 answer
  • Mr and mrs Jones buy cinema tickets for themselves and their three children. the cost of an adult ticket is £6 more than a child
    11·1 answer
  • The table shows the height of water in a pool as it is being filled. A table showing Height of Water in a Pool with two columns
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!