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
andriy [413]
3 years ago
5

The Greeks noticed that some stars were larger and moved haphazardly. What were these stars?

Physics
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Answer:

i guess it's shooting star

You might be interested in
1) You slam on the brakes of your car in a panic, and skid a certain distance on a straight level road. If you had been travelin
aleksandr82 [10.1K]

Answer:

d = 4 d₀o

Explanation:

We can solve this exercise using the relationship between work and the variation of kinetic energy

         W = ΔK

In that case as the car stops v_f = 0

the work is

          W = -fr d

we substitute

          - fr d₀ = 0 - ½ m v₀²

           d₀ = ½ m v₀² / fr

now they indicate that the vehicle is coming at twice the speed

          v = 2 v₀

using the same expressions we find

           d = ½ m (2v₀)² / fr

           d = 4 (½ m v₀² / fr)

           d = 4 d₀o

3 0
3 years ago
Human blood consists of blood groups A, B, and O. However, there is one more blood group, AB, which contains alleles A and B in
Arturiano [62]
The answer is Codominance, AB blood cells inherit both A and B blood types so they are codominance
3 0
3 years ago
Read 2 more answers
If you started the motor of a boat in the middle of a lake, who would detect the sound of the motor first: a friend sitting on t
ArbitrLikvidat [17]

Answer:

A friend snorkeling just below the surface of the water along the same shore will detect the sound first.

Explanation:

  • The speed of sound in water medium is faster than that through the air.
  • Sound propagates through the medium by transferring through the molecules on it. Water has more closely packed molecules due to which the speed is faster.
  • In fact, the sound's speed in water is almost four times faster than that in the air.
  • So the guy in the water surface gets to hear sound faster than the one in sore.
6 0
3 years ago
Read 2 more answers
Give three factors which are responsible for the vanishing forest ​
slava [35]

Answer:

1. Huge wildfires

2. Deforestation

3. Reduced amount of aforestation, etc

5 0
3 years ago
What unit is used to measure the period of a wave?
mixer [17]

Answer:

D. Meters/Seconds

Explanation:

The time period of a wave is measured in seconds.

A typical wave involves both time and distance.  Consider a sound wave, which is basically a periodic modulation of the local air pressure.  We "hear" the sound because our ears respond to the variations of pressure.

The most common metric of a sound wave is frequency.  This is the rate at which the change in pressure occurs, and is measured in cycles per second, formally known as "hertz".  The period is the inverse of frequency andl has the units of seconds per cycle, commonly stated simply as seconds.

4 0
2 years ago
Other questions:
  • Hans observed properties of four different waves and recorded observations about each one in his chart.
    7·2 answers
  • The removal of an embedded gas from a solid object, as happens when formaldehyde in new carpets and furniture is released into t
    6·1 answer
  • . At a frequency ω1, the reactance of a certain capacitor equals that of a certain inductor.
    6·2 answers
  • I need these for test corrections that are due tomorrow please :)
    14·1 answer
  • Assume we’re able to travel to your planet and decide to take some fireworks with us to celebrate our journey.
    11·1 answer
  • A CD spins at a constant angular velocity of 5.0 revolutions per second clockwise.
    10·1 answer
  • An atom of the element ____________has an average atomic mass of about 16 amu. A) oxygen B) sulfur C) nitrogen D) no elements ha
    6·1 answer
  • A seasoned mini golfer is trying to make par on a tricky number five hole. The golfer can complete the hole by hitting the ball
    15·1 answer
  • Can someone pls explain this question to me. Thanks in advance! ​
    11·1 answer
  • If two objects have different tempters, in which direction will heat move? for how long
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!