Which statement best describes how light waves travel in a uniform medium. A. in straight lines. . B. in extending circles. . C. in bent lines. . D. in shrinking ripples

Answers

Answer 1

Answer: Light waves travel in straight lines when they are travelling in a uniform medium. This is because the waves are travelling at the same speed.

Answer 2

Answer:

The answer is a. Straight lines

Related Questions

Recall that the height of an object t seconds after it begins moving when gravity is the only force acting on the object is given. h(t)=-16x^2 + v0t + h0. h(t) is given in feet. v0 = initial velocity of object in ft/sec. ho= initial height of object in feet. If the feather is dropped from the top of the bridge 90 feet above a river, how long does it take the feather to reach the water?
When is orange is the new black episodes come out
What happens to the temperature of a substance during a phase change?a. The temperature increases. b. The temperature decreases. c. The temperature remains constant. d. The temperature fluctuates randomly.
Displacement vectors A, B, and C add up to a total of zero. Vector A has a magnitude of 1550 m and a direction of 25.6° north of east. Vector B has a direction of 41.0° east of south, and vector C has a direction of 35.1° north of west. Find the magnitudes of vector B and vector C.
Sound is a ____ wave. A large boulder falls from an underwater ledge and crashes on the floor of the ocean. A pod of dolphins is 800 meters away. Determine how long it takes for the sound of the crash to reach the dolphins. 0.5 sec 0.3 sec 2.3 sec 1.9 sec

Do magnets work through glass?

Answers

Yes but the thicker the glass the stronger the magnet has to be

Ceres is BEST classified as a(n) ___.a. asteroid
b. meteoroid
c. dwarf planet
d. Kuiper Belt object

Answers

Ceres is best classified as a dwarf planet. Ceres is located in he asteroid belt. Ceres is much closer to Earth than Pluto and it was discovered in the year of 1801.

Option C.

Ceres is considered the smallest dwarf planet of the solar system.

The device which disconnects the start winding in some split-phase motor circuits after a preset speed is obtained is thea. thermostat.
b. commutator.
c. brush spring.
d. relay.

Answers

a. thermostat. is the correct ans

Can someone help with number 4 please

Answers

The way I look at these things is like this:

-- The runner covered 12 meters in 4 seconds.
Average speed = 3 meters per second.

-- Speed at the beginning = zero.
In order to make the average 3, Speed at the end = 6 meters per second.

-- Speed increased from zero to 6 meters per second in 4 seconds.
It must have increased 1.5 meters per second each second.

That's choice-#2.

Here we have -
Acceleration (a) = ?
Initial velocity (u) = 0 m/s (runner starts from rest)
Distance (s) = 12 m
Time (t) = 4 seconds

So, using the second equation of motion, we have-

$s = ut + (1)/(2)at^(2)$

$12 = 0*4 + (1)/(2)*a*4 ^(2)$

$12 = 0+8a$

$(12)/(8) = a$

$1.5m/ s^(2)$

So, option (2) is correct.

Astronaut John Glenn was the first American to _____.launch into space
walk on the moon
orbit the earth
do a spacewalk

Answers

Answer: orbit the earth

Explanation:

In 1962, with three orbits around the Earth, John Glenn is the first American Astronaut to do so.

John Glen was selected in NASA in 1959. He flew Friendship 7 mission on 20th February, 1962. He was the first American to orbit the Earth. He took three rounds about the Earth.

he was the first American to orbit the earth.

In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.20 3 106 m/s. Find (a) the force acting on the electron as it revolves in a circular orbit of radius 0.529 3 10210 m and (b) the centripetal acceleration of the electron

Answers

The force of a particle moving in a circular motion is:
F=ma
where m is the mass and a is the centripetal acceleration, which is expressed as:
a=v²/r

where v is the speed and r the distance between the particles. You use these equations, by substituting the values given in order to solve the problem.

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