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
Blababa [14]
2 years ago
8

Wtz the answer to this question? I need to get it right

Physics
2 answers:
Rama09 [41]2 years ago
4 0

Answer: Next time you create a question, add an image or PDF. Because I do not know the question. So, may you please create a new question?

Viktor [21]2 years ago
4 0
Theirs no i picture so can you do the question again or some
You might be interested in
For you, do exercises boost your confidence? how?​
SVETLANKA909090 [29]

Answer:

yes for me

Explanation:

7 0
3 years ago
Read 2 more answers
Which law of motion accounts for the following statement?
strojnjashka [21]
I know that its not the second law. I'm almost positive its the first one. Please let me know if I'm wrong. This sentence makes no sense when you put it with the third law. So, the first law is my guess...
3 0
3 years ago
Read 2 more answers
Why does a vibrating simple pendulum not to produce any sound
Gelneren [198K]
It does produce 'sound' ... a compression wave traveling through the air. But your ears don't hear a sound that's vibrating less than 20 or 30 times every second. If you could swing your pendulum that fast, you could hear the sound of its vibrations pushing the air around.
7 0
3 years ago
Please help with these questions. All questions are in the image.​
S_A_V [24]

1) Average speed

2) Displacement

Explanation:

1)

Speed is a scalar quantity which gives a measure of how fast a body is moving. It is equal to the ratio between the distance travelled by an object and the time taken to cover that distance:

speed = \frac{d}{\Delta t}

where

d is the distance covered

\Delta t is the time taken

It is important to note that being a scalar, speed does not have any direction. Moreover, distance is also a scalar quantity, which corresponds to the total length of the path covered by the object, regardless on the direction taken.

So, the equation "travelled distance/elapsed time" corresponds to the average speed. (where the term average refers to the fact we are not measuring the speed at a specific instant in time, but on a certain time interval \Delta t.

2)

Velocity is a vector quantity, so it has both a magnitude and a direction.

The magnitude of the velocity is given by:

velocity=\frac{\Delta x}{\Delta t}

where

\Delta x is the change in position (or displacement) of the object

\Delta t is the time taken

And the direction of the velocity corresponds to the direction of the displacement.

We must note that while distance does not depend on the direction, displacement does. In fact, displacement measures the difference between the initial and final position of the object.

Therefore, the equation "change in position / elapsed time" is equal to the average velocity.

Learn more about speed and velocity:

brainly.com/question/8893949 (speed)

brainly.com/question/5063905 (speed vs velocity)

brainly.com/question/5248528 (velocity)

#LearnwithBrainly

4 0
3 years ago
A ball is dropped from the top of the building.it initially moves at 4.0 m/s after 0.5 seconds it moves at 3.8m/s what force is
Ivahew [28]

The correct answer is

Air resistance

In fact, when a ball is in free fall, there are two forces acting on it:

- its weight (force of gravity), acting downward

- the air resistance, acting upward

The effect of the weight is to accelerate the ball, because its direction is the same as the direction of motion of the ball, while the effect of the air resistance is to slow down the ball, because its direction is opposite to that of the motion.

6 0
3 years ago
Other questions:
  • Let’s consider several models of the Earth’s radiation properties. In each part, assume that the Earth's radiative output balanc
    5·1 answer
  • Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.
    10·2 answers
  • Absorbed energy is said to be quantized. This means:____________ a) Energy is absorbed only by valence electrons. b) Energy caus
    11·1 answer
  • A football is kicked into the air verticaly upward. What is its(a)accelaration and(b)velocity at the highest point
    14·1 answer
  • Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicul
    11·1 answer
  • Humid air breaks down (its molecules become ionized) in an electric field of 4.99 x 10^6 N/C. In that field, what is the magnitu
    11·1 answer
  • A pickup truck has a width of 79.0 in. If it is traveling north at 42 m/s through a magnetic field with vertical component of
    12·1 answer
  • An electron accelerates through a 12.5 V potential difference, starting from rest, and then collides with a hydrogen atom, excit
    12·1 answer
  • Sam moves an 800 N wheelbarrow 5 meters in 15 seconds. How much work did he do?
    5·1 answer
  • Myron was trying to light a match. The first time he struck the match, the match did not light. The second time he tried, the ma
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!