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
coldgirl [10]
2 years ago
7

Explain with reason that when sunlight is focused on a piece of paper with the help of a convex len the paper will burn.​

Physics
1 answer:
Sloan [31]2 years ago
8 0

Answer:

Convex lenses concentrates the light energy to one spot on the paper so that the heat energy accumulates on that one small spot of paper. ... As the heat increases, combustion will occur when the spot becomes too hot and the paper will burn.

Explanation:

Hope it helps!

If you dont mind can you please mark me as brainlest?

You might be interested in
You're an electrical engineer designing an alternator (the generator that charges a car's battery). Mechanical engineers specify
Julli [10]

Answer:

13.78 mT

Explanation:

The peak voltage ε = ωNAB where ω = angular speed of coil = 1500 rpm = 1500 × 2π/60 rad/s = 50π rad/s = 157.08 rad/s, N = number of turns of coil = 250, A = area of coil = πr² where r = radius of coil = 10 cm = 0.10 m,

A = π(0.1 m)² = 0.03142 m² and B = magnetic field strength

So,

B = ε/ωNA  

substituting the values of the variables into the equation given that ε = 17 V

So, B = ε/ωNA

B = 17 V/(157.08 rad/s × 250 turns × 0.03142 m²)

B = 17 V/(1233.8634 rad-turns-m²/s)

B = 0.01378 T

B = 13.78 mT

8 0
2 years ago
What does a biomass pyramid show?
lora16 [44]

Answer:

I SAVE D1K BY GIVING IT CPR

Explanation:

5 0
3 years ago
Read 2 more answers
To wait until the oncoming vehicle passes before completing a left turn is known as:
Reika [66]

Answer:

Risk rejection

Explanation:

There are several factors that contribute to the degree of driving risks and they include but not limited to the ability of the driver and the condition of a vehicle. Other factors are condition of the environment and the condition of the highway. When driving, a driver may wait until an oncoming vehicle passes before making a complete left turn as a risk rejection strategy. Left turns are more dangerous when making them because drivers tend to accelerate on to a left turn. The wider radius of a  left turn is know to led to higher speeds and greater pedestrian exposure. A driver is advised to have more mental and physical efforts when making a left turn.

5 0
3 years ago
Energy from the sun drives the _ of the water from the ocean surface. As the air moves up the west side of the mountain, the wat
marin [14]

Answer: The air is full of water, as water vapor, even if you can't see it. Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head. And when the water droplets in clouds combine, they become heavy enough to form raindrops to rain down onto your head.

Explanation:

6 0
1 year ago
Electromagnetic waves are ________ waves.
n200080 [17]
D. Transverse waves
3 0
3 years ago
Other questions:
  • What is four possible energy sources for a circuit
    15·2 answers
  • Which waves move by replacing one particle with another
    11·2 answers
  • A 500N person stands 2.5m from a wall against which a horizontal beam is attached. The beam is 6m long and weighs 200N. A cable
    12·1 answer
  • Which of the following is most likely to happen when energy is transferred to
    10·2 answers
  • A 0.40 kg ball is suspended from a spring with spring constant 12 n/m . part a if the ball is pulled down 0.20 m from the equili
    13·1 answer
  • Which element is this?
    8·2 answers
  • Physics question about density
    7·2 answers
  • What is the net force on the purple ring in the picture below. _________
    11·1 answer
  • PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST The actual subject is Science but they dont have that as a option in pick
    15·1 answer
  • Which wave shown has more energy?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!