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
Lunna [17]
3 years ago
11

Forces can be added together only if they are

Physics
1 answer:
Snezhnost [94]3 years ago
7 0
The answer for question 1 is A.
The answer for question 2 is C
You might be interested in
Microphone Electricity needs
Finger [1]
Sound—energy<span> we can hear—travels only so far before it soaks away into the world around us. Until electrical </span>microphones<span>were invented in the late 19th century, there was no satisfactory way to send </span>sounds<span> to other places. You could shout, but that carried your words only a little further. You couldn't shout in New York City and make yourself heard in London. And you couldn't speak in 1715 and have someone listen to what you said a hundred years later! Remarkably, such things are possible today: by converting sound energy into electricity and information we can store, microphones make it possible to send the sounds of our voices, our music, and the noises in our world to other places and other times. How do microphones work? Let's take a closer look!</span>
3 0
3 years ago
PLZ help 10 points!!! space question!
irga5000 [103]

Answer:

B. They are smaller and made of rocky material

Explanation:

i think it's right??

5 0
2 years ago
Darwin is sitting on top of a 10 m tree and decided to drop a 3 kg baseball to the ground. What is the velocity when the PE turn
Nimfa-mama [501]

The AMOUNT of energy the ball has doesn't change. It's 294 joules in Darwin's hand, and it's still 294 joules when the ball hits the ground.  It's all PE before he let's it go, and it steadily changes from PE to KE all the way down.

It BEGINS to turn into KE immediately, when Darwin lets go of the ball, and it starts to fall.

More and more PE turns into KE as the ball falls, all the way down.

When the ball hits the ground, it has no more PE left. All of its mechanical energy is then KE.

8 0
3 years ago
A mass of .1539 kg moves down a 5 meter ramp in 2 seconds. What
enot [183]

Answer:

Velocity=2.5m/s

KE=4809.375J

Explanation:

Velocity=5m/2s=2.5m/s

KE=½×1539kg×(2.5m/s)²

KE=4809.375J

4 0
3 years ago
Which of the following woud be expected to have the greatest impact on primary productivity?
leonid [27]

Answer: C solar energy

Solar energy has the greatest  impact on primary productivity.

Explanation:

Primary productivity  is the amount of organic compounds synthesized from carbon dioxide. Primary production occurs by the process of photosynthesis. Since the process of photosynthesis uses sunlight as the energy source solar energy has the greatest impact on primary productivity.

The synthesis can occur in atmosphere as well as aquatic environment. The organisms that perform the function of primary production are called producers .In terrestrial regions plants are the producers and in aquatic systems algae are the  primary producers.

3 0
3 years ago
Other questions:
  • The mass of Pluto is 1.303 times 10 to the 22 power kilograms and it had an acceleration of gravity of 0.0630 grams. What is the
    7·1 answer
  • The density of aluminum is 2.7 g/cm3. What is the volume of a piece of aluminum if its mass is 8.1 grams?
    12·1 answer
  • A customer sits in an amusement park ride in which the compartment is to be pulled downward in the negative direction of a y axi
    7·2 answers
  • Light is traveling in air at a speed of 300,000 km/s. Which substance would cause the light to refract the LEAST?
    8·1 answer
  • What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room whose ambient temperature is 22
    15·1 answer
  • A speed skater goes around a turn with a 31 m radius. The skater has a speed of 14 m/s and experiences a centripetal force of 46
    5·1 answer
  • Which chemical reaction is the fastest?
    11·1 answer
  • 3. A woman drove her car from home to her daughter's school. The odometre on her dashboard says she travelled 4.5 km to do this.
    15·1 answer
  • How to calculate the average value of the indirect measurements of KE
    6·1 answer
  • I need help please ASAP
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!