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
vaieri [72.5K]
3 years ago
9

A car accelerates from 10 km/hr to 50 km/hr in 8 seconds. What is the acceleration?

Physics
1 answer:
nikklg [1K]3 years ago
6 0
The answer is 5 km/hr

You might be interested in
We spend our lives in visible light without risks to our health. Yet exposure to UV waves in sunlight can cause skin cancer. Wha
Trava [24]
The correct answer is
<span>B) UV waves are higher frequency and carry more energy. 

In fact, UV waves have higher frequency than visible light. For comparison, visible light has frequency in the range 430-770 THz (</span>10^{12} Hz)<span>, while ultraviolets (UV) have frequency higher than these values (at the order of 1 PHz, </span>1\cdot 10^{15}Hz).

The energy of electromagnetic radiation is proportional to its frequency, according to the equation
E=hf
where h is the Planck constant and f is the frequency. We see that the higher the frequency, the greater the energy, so UV waves carry more energy than visible light.
3 0
3 years ago
Read 2 more answers
12. What is the speed of a wave with a wavelength of 10 meters and a frequency of 100 Hz?
PtichkaEL [24]

The speed of the wave is 1000 m/s.

Answer:

Explanation:

Speed of a wave will always be equal to the product of wavelength and frequency of the wave.

Since, here the wavelength is given as 10 m and frequency is given as 100 Hz, the multiplication of these two terms will specify the speed of that wave.

Speed = Wavelength × Distance

Speed = 100 × 10 = 1000 m/s.

So, the speed of the wave is 1000 m/s.

8 0
3 years ago
Which will settle out if allowed to sit on a table? suspension colloid solution compound a suspension a colloid a solution a com
liubo4ka [24]

Answer is suspension.

Lets define all options.

<h3>Suspension:</h3>

In suspension the solute does not dissolve in liquid. When placed on table for some time, it will settle down at the bottom of the beaker. We can separate particles of solute easily from solvent through filtration.

<h3>Colloid:</h3>

In colloid particles of solute does not dissolve in liquid neither it is settle down. It floats through the solvent. It cannot be separated by filtration.

<h3>Solution:</h3>

In solution the particles of solute dissolve in to the solvent. We cannot identify them as separate. We cannot separate them by filtration. Salt and water solution is an example of it. Evaporation is the technique that is required to separate them.

<h3>Compound:</h3>

In compound, the two elements combine to form a new thing. Resultant/ compound have new or different properties other than its ingredients.

Now, the question was which of the following allow to settle out when sit on a table, so the answer is suspension. Suspension allows the particles to settle out when sit on a tables for some time.

8 0
3 years ago
Read 2 more answers
Balancing Chemical Equations
finlep [7]

1.   2 C2H6 + 7 O2 = 6 H2O + 4 CO2

8 0
3 years ago
Read 2 more answers
Which of the following statements is NOT true?
Nataly [62]
I think it’s D but i’m not too sure
4 0
3 years ago
Other questions:
  • What is the wavelength of an ekectromagnetic wave that has a frequency of 40,000 hz? the speed of light is 3x10^8 m/s?
    10·1 answer
  • romeo threw a small bundle toward Juliet on a balcony 10.0 m above him with a velocity of 5.0 m/s. The bundle stopped rising aft
    12·1 answer
  • The mineral needed in blood is.<br> 1.iodine<br> 2.oxygen<br> 3.iron<br> 4.soduim<br> 5.hemoglobin
    10·2 answers
  • A purse at radius 2.0 m and a wallet at radius 2.3 m travel in uniform circular motion on the floor of a merry-go-round as the r
    10·1 answer
  • A 22 kg sled is pushed for 5.2 m with a horizontal force of 20 N, starting from rest. ignore friction. find the final speed of t
    12·1 answer
  • The international space station orbits the earth at a distance of 6,783 km from the center of the earth it travels at 7.66 km/s.
    10·1 answer
  • Research is being done on the use of radio waves in destroying cancer cells. What type of frequency would be best used in this t
    8·2 answers
  • A single-turn circular loop of radius 14 cm is to produce a field at its center that will just cancel the earth's magnetic field
    12·1 answer
  • A 6.0-kg object moving 5.0 m/s collides with and sticks to a 2.0-kg object. after the collision the composite object is moving 2
    13·1 answer
  • The US Patent and Trademark Office is responsible for protecting the intellectual property of inventors. A patent is granted if
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!