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
aleksandrvk [35]
3 years ago
11

Help me answer these, please. I GIVE CROWNS!! PLEASE!!

Physics
2 answers:
bija089 [108]3 years ago
8 0

Answer: 1- A diagram showing the forces acting on the object.

2- The force vector describes a specific amount of force and its direction. You need both value and direction to have a vector.

3- A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.

4- I don’t know

5- When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces

6- By applying an unbalanced force, you can change the motion of an object. Unbalanced forces can make an object at rest start moving, make a moving object stop, or change the direction and speed of the object.

7- If the forces on an object are unbalanced, this is what happens: a stationary object starts to move in the direction of the resultant force.

8- Imbalance or unequal force

9- The result is no motion. Balanced forces can cancel each other out. Any time there is a balanced force, the object does not move.

10- net force is the vector sum of all the forces that act upon an object.

RESTATE THESE

Explanation:

RESTATE!!!!

Vanyuwa [196]3 years ago
6 0
1. To demonstrate all the forces acting on an object.
2. They tell us about the direction of the force and the magnitude of the force relative to the other forces acting.
3. Larger vector arrows demonstrate a larger magnitude of a certain quantity. Vice versa.
4. In which direction are all of the forces in the diagram?
5. It means that there is no net force on the object - the forces sum up to zero. Forces are balanced if they are equivalent and in opposite directions.
6. Unbalanced forces ALWAYS CAUSE ACCELERATION (speeding up / slowing down). If an unbalanced/net force acts on an object, that object will ALWAYS accelerate in that direction for as long as the force is applied.
7. It means that there IS a net force acting on the object, aka the sum of the forces is greater than zero.
8. Net forces. Symbolized by Fnet or Greek letter Sigma before the F.
9. Absolutely no CHANGE IN motion. This is Newton’s First Law of Motion - basically all objects continue in their state of motion unless acted on by an unbalanced force. Note if an object is already moving and balanced forces act on it, it will continue moving. No change in motion.
10. It is the vector sum of the forces acting on an object in a certain direction.

Hope this helped! You were pretty much spot on for most of them, but I tried to add a little more detail in the responses I wrote. Please let me know if you have a question about this. Have a great night (or day)!
You might be interested in
What current is used to power the United States power grid?
alexdok [17]
The answer is Alternating Current
3 0
3 years ago
Read 2 more answers
Fiberglass, an insulator, can be found in the wals and roofs of some houses and buildings. Why would an insulator be needed insi
GREYUIT [131]

It keeps the heat inside of the building

5 0
3 years ago
Read 2 more answers
What is the difference between a partial and total lunar eclipse?
storchak [24]

Answer:

During a total lunar eclipse, the moon and sun are on the exact opposite sides of the Earth, leaving the moon entirely in the Earth's shadow. During a partial lunar eclipse, only part of the moon is in the Earth's shadow.

Explanation:

5 0
2 years ago
A certain thin lens is made of glass with refraction index ????lens=1.500. In air, where the index of refraction is 1.000, the l
son4ous [18]

Answer:

The focal length of the lens in ethyl alcohol is 41.07 cm.

Explanation:

Given that,

Refractive index of glass= 1.500

Refractive index of air= 1.000

Refractive index of ethyl alcohol = 1.360

Focal length = 11.5 cm

We need to calculate the focal length of the lens in ethyl alcohol

Using formula of focal length for glass air system

\dfrac{1}{f}=(n_{g}-n_{a})(\dfrac{1}{R_{1}}-\dfrac{1}{R_{2}})

Using formula of focal length for glass ethyl alcohol system

\dfrac{1}{f'}=(n_{g}-n_{ethyl})(\dfrac{1}{R_{1}}-\dfrac{1}{R_{2}})

Divided equation (II) by (I)

\dfrac{f'}{f}=\dfrac{n_{g}-n_{a}}{n_{g}-n_{ethyl}}

Where, n_{g} = refractive index of glass

n_{a} = refractive index of air

n_{ethyl} = refractive index of ethyl

Put the value into the formula

\dfrac{f'}{11.5}=\dfrac{1.500-1.000}{1.500-1.360}

\dfrac{f'}{11.5}=\dfrac{25}{7}

f'=\dfrac{25}{7}\times11.5

f'=41.07\ cm

Hence, The focal length of the lens in ethyl alcohol is 41.07 cm.

7 0
3 years ago
If there is a huge boulder on your lawn and you want to determine its density, but it is
Olin [163]

There are different options here but all of them work by approximating and assuming.

i) that the boulder is above ground.

ii) that the bottom surface of the boulder is known.

iii) the shape of the boulder is taken into account.

The most accurate way is measuring it by displacement method but the boulder is immovable hence the volume can be calculated by measuring the boulder or a waterproof box to be built around the boulder and calculate the volume occupied by boulder.

All the above methods are estimating methods.

*Another way to find the density is through specific gravity.

S.G = <u>Density</u><u> </u><u>of</u><u> </u><u>object</u>

Density of water

If the material that makes the boulder is known that is if it's stone or a mineral then the specific gravity can be found.

If the boulder is purely rock then S.G lies between 3 - 3.5 and the density of water is known thus the density of the boulder can be found without moving the boulder.

This is what I think after correction and allthe best!

3 0
2 years ago
Read 2 more answers
Other questions:
  • The sound intensity at the ear of passenger in a car with a damaged muffler is 8.0 × 10-3 W/m2. What is the intensity level of t
    8·1 answer
  • A fisherman is fishing from a bridge and is using a "40.0-N test line." In other words, the line will sustain a maximum force of
    15·1 answer
  • What is the net force on a ball that falls downward?
    7·1 answer
  • What is the mass of a plastic spoon
    14·2 answers
  • F F= {mango, apple, banana, orange)​
    12·1 answer
  • Rain that tends to fall in bands on earth is caused by which of the following?
    12·2 answers
  • While trees are not the largest level in the pyramid of numbers, they are still the base for both the pyramids of biomass and py
    11·1 answer
  • For a cosine function with amplitude A=0.75 and period T=10, what is y(4)?
    9·2 answers
  • Help fast please physics
    7·1 answer
  • The most massive stars will eventually collapse entirely giving us what<br> unique structure?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!