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
Alecsey [184]
3 years ago
9

If the angle of refraction is 20 degrees what is the angle of incidence​

Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
5 0

Answer:

13.1

Explanation:

that's what I'm gonna go with, but u can research more

You might be interested in
In a circus act, a uniform board (length 3.00 m, mass 25.0 kg ) is suspended from a bungie-type rope at one end, and the other e
tester [92]

Answer:

Force of Rope = 122.5 N

Force of Rope = 480.2N

Explanation:

given data

length = 3.00 m

mass = 25.0 kg

clown mass = 79.0 kg

angle = 30°

solution

we get here Force of Rope on with and without Clown that is

case (1) Without Clown

pivot would be on the concrete pillar so Force of Rope will be

Force of Rope × 3m = (25kg)×(9.8ms²)×(1.5m)

solve it and we get

Force of Rope = 122.5 N

and

case (2) With Clown

so here pivot is still on concrete pillar and clown is standing on the board middle  and above the centre of mass so Force of Rope will be

Force of Rope × 3m = (25kg+73kg)×(9.8ms²)×(1.5m)

solve it and we get

Force of Rope = 480.2N

4 0
4 years ago
Which of the following has to happen for Earth's shadow to fall on the moon?
Ronch [10]
The correct answer is a, lunar eclipse
6 0
3 years ago
An airplane is at rest on a runway. It accelerates at 10 m/s2 for 15 seconds. How fast is it now traveling?​
KATRIN_1 [288]

Answer:

150

Explanation:

v = at

v = 10(15)

v = 150 m/s

6 0
4 years ago
Th answer and how to do it (please do it on paper and send a picture if you can )
Umnica [9.8K]
If series Rs = R1 + R2

8 0
3 years ago
Where is the most energy transferred in a food web?
Alla [95]

Answer:

is b and d hope id helpful

Explanation:

idk how to explain

6 0
4 years ago
Other questions:
  • How much would your 20.0 kg dog weigh on Neptune?
    10·2 answers
  • A person pushes horizontally with a force of 180. N on a 67.0 kg crate to move it across a level floor. The coefficient of kinet
    5·1 answer
  • An airplane starts its takeoff by moving at 1.7 m/s. The plane must then accelerate at 3.0 m/s2 for the next 30s to reach its fi
    7·1 answer
  • Choose the appropriate words to complete the thought. A solar powered car converts _______________ energy into _________________
    14·1 answer
  • Playing a certain musical note on a trumpet
    11·1 answer
  • What are the typical units for measuring blood pressure?
    11·1 answer
  • g While hauling a log in the back of a flatbed truck, a driver is pulled over by the state police. Although the log cannot roll
    5·1 answer
  • When a potential V is applied across a capacitor, a charge q is stored. What charge is stored if the potential across the capaci
    14·1 answer
  • Can someone pls help me with these questions I’ll give brainliest
    11·1 answer
  • A football punter wants to kick the ball so that it is in the air for 4.5 s and lands 50 m from where it was kicked. Assume that
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!