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
LekaFEV [45]
3 years ago
14

What is true about an object in free fall?

Physics
1 answer:
salantis [7]3 years ago
5 0
The only force being acted upon it is gravity. A ball that was thrown downward off a building isn't in freefall, because it had initial velocity. A piece of paper can't necessarily be in free fall because it is affected by air resistance.
You might be interested in
What Does This Poem Mean?
Ann [662]
Nakakakak skskskksksksks
7 0
2 years ago
On Planet Y, which has no air, a dropped object falls 9 m in 3 seconds. What is g, the acceleration due to gravity, on that plan
slavikrds [6]

Answer:

a = 2 m/s^2

which agrees with the third answer option provided.

Explanation:

Recall the kinematic formula for displacement under the action of a constant acceleration "a":

yf - yi = 1/2 a  t^2

using the information provided this equation becomes:

9 = 1/2 a (3)^2

solve for a:

9 * 2 / 9 = a

then a = 2 m/s^2

which agrees with the third answer option provided.

7 0
3 years ago
Which of the following does not cause an earthquake
antoniya [11.8K]

Answer:

C

Explanation:

A Tsunami is usually the result of an earthquake under the sea

7 0
3 years ago
“I know what the atomic number of this atom is, but I don’t know what the number of electrons is,” a friend says. How would you
liq [111]

Once the atomic number of an atom is known, the number of electrons can be deduced depending on if the atom is an ion or a neutral one.

<h3>Atomic number</h3>

The atomic number of an atom is the number of protons in the nucleus of the atom.

For atoms that are neutral, that is, no net charges, the number of protons is always equal to the number of electrons. In other words, the positive charges always balance the negative charges in neutral atoms.

Thus, if the atomic number of a neutral atom is 6, for example, the proton number will also be 6. Since the proton must balance the electron, the number of electrons will also be 6.

More on atomic numbers can be found here; brainly.com/question/17274608

8 0
2 years ago
This type of water occurs as a liquid resource that is dispersed through numerous holes, pores, fractures, and cavities in bodie
777dan777 [17]

Answer:

C

Explanation:

Although this may seem surprising, water beneath the ground is commonplace. Usually groundwater travels slowly and silently beneath the surface, but in some locations it bubbles to the surface at springs. The products of erosion and deposition by groundwater were described in the Erosion and Deposition chapter.

Groundwater is the largest reservoir of liquid fresh water on Earth and is found in aquifers, porous rock and sediment with water in between. Water is attracted to the soil particles and capillary action, which describes how water moves through a porous media, moves water from wet soil to dry areas.

Aquifers are found at different depths. Some are just below the surface and some are found much deeper below the land surface. A region may have more than one aquifer beneath it and even most deserts are above aquifers. The source region for an aquifer beneath a desert is likely to be far from where the aquifer is located; for example, it may be in a mountain area.

The amount of water that is available to enter groundwater in a region is influenced by the local climate, the slope of the land, the type of rock found at the surface, the vegetation cover, land use in the area, and water retention, which is the amount of water that remains in the ground. More water goes into the ground where there is a lot of rain, flat land, porous rock, exposed soil, and where water is not already filling the soil and rock.

The residence time of water in a groundwater aquifer can be from minutes to thousands of years. Groundwater is often called “fossil water” because it has remained in the ground for so long, often since the end of the ice ages.

8 0
2 years ago
Read 2 more answers
Other questions:
  • What is meant by saying that a wave has a high frequency?
    11·2 answers
  • a particle moves along the x axis with an acceleration of a=18t, where a has units if m/s2. if the particle at time t=0 is at th
    10·1 answer
  • Use this scenario to answer the four following questions. A person is on a sled on top of a snow covered hill. The vertical dist
    11·1 answer
  • An object is dropped at a height of 12 m from the ground. How fast is it moving just before it hits the ground?
    13·1 answer
  • Suppose a balloon was tied to a pole. What happens?
    10·1 answer
  • Mỗi giây có 2,1.1018 ion+
    9·1 answer
  • Which is the best explanation for his results?
    5·2 answers
  • g What is the final velocity of a hoop that rolls without slipping down a 6.92 m high hill, starting from rest
    9·1 answer
  • Is hydrogen energy renwable? Why<br> How is it used nowadays<br> How is it obtained?
    15·1 answer
  • Fire spreading from a wall to a nearby couch due to radiant heat transfer is an example of: Select one:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!