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
algol [13]
3 years ago
8

An object is in free fall. After 10 seconds calculate the distance fallen?

Physics
1 answer:
maxonik [38]3 years ago
6 0

Answer:

D.490.5\ m

Explanation:

We\ are\ given\ that,\\Acceleration\ due\ to\ gravity\ (On\ Earth)=9.81\ m/s^2\\Initial\ Velocity\ of\ the\ body=0\ m/s\\Time\ taken=10\ seconds\\Hence,\\From\ the\ Second\ Equation\ of\ Motion:\\S=ut+\frac{1}{2}at^2\\By\ reconstructing\ the\ equation:\\S=ut+ \frac{1}{2}gt^2\\Hence, here\\S=0*10+\frac{1}{2}*9.81*10^2\\S=\frac{1}{2}*981\\S=490.5\ m

You might be interested in
During the power stroke energy released by combustion generates the force that:_______.
Inessa05 [86]

Explanation:

An IC engines means an Internal Combustion engine. Here, the combustion takes place in side a chamber or a cylinder internally, hence it is known as internal combustion engine.

Combustion is the process where oxygen reacts with the fuel and it burns to produce a large amount of force and heat. In each revolution of the crank, the engine creates a power stroke when the piston goes from the bottom dead center to the top dead center.

During each power stroke, the energy released forces the piston down and the crankshaft is rotated.

8 0
3 years ago
Sachi wants to throw a water balloon to knock over a target and win a prize. The target will only fall over if it is hit with a
Verizon [17]
3.1 the only reason i know this is cause i got it wrong 
8 0
3 years ago
Read 2 more answers
3 a A motorcyclist starts from rest and reaches
andrew-mc [135]

The acceleration of the body is 2 m/s^2 while the deceleration is - 1.2 m/s^2.

<h3>What is the acceleration?</h3>

Let us recall that the acceleration is the change in the speed of a body with time. We have been told that the body accelerates for 3s and then decelerates to 2s. This implies that the total time that the object spent in motion is 5 s.

Thus;

v = u + at

v = final velocity

u = initial velocity

a = acceleration

t = time taken

v - u/t = a

a = 6 - 0/3

= 2 m/s^2

Again;

v - u/t = a

a = 0 - 6/5

a = - 1.2m/s^2

Learn more about acceleration:brainly.com/question/12550364

#SPJ1

<h3 />
7 0
2 years ago
How many justified by Bohr model?
Dominik [7]

X-ray formation

Energy difference in the first ionization of the same group of elements

Differential linear emission spectra of different elements

Explanation:

The formation of x-ray, energy difference in the first ionization of the same group of elements and differential linear emission spectra of different elements can be justified by the Bohr model of the atom.

  • According to Neil Bohr, in an atom, the extranuclear part consists of electrons in specific spherical orbits around the nucleus.
  • Bohr's model explained the discrete lines in atomic spectrum of different elements.
  • Due to excitation of electrons, some rays are given off. Some of these are energetic like x-rays.
  • The energy difference between the first ionization of the same group of elements is a proof that electrons are in specific spherical orbits.
  • The higher the energy the level, the ease at which electrons can be removed and the lower the ionization energy.

Learn more:

Bohr model of the atom brainly.com/question/4986277

#learnwithBrainly

3 0
4 years ago
The law of conservation of momentum states that the total momentum of interacting objects does not
Deffense [45]

Answer:

Law of conservation of momentum states that "The total momentum of an isolated system always remains constant"

Or

"In an isolated system the total momentum of the interacting bodies remains constant before and after collision or interaction".

3 0
3 years ago
Other questions:
  • Ordena de mayor a menor las siguientes velocidades.
    15·1 answer
  • If the volume of the balloon is 500 m3m3 and the surrounding air is at 15.0 ∘C∘C, what must the temperature of the air in the ba
    10·1 answer
  • A long, straight, vertical wire carries a current upward. due east of this wire, in what direction does the magnetic field point
    10·1 answer
  • You do 45 j of work in 3 seconds. how much power do you use
    7·1 answer
  • 1. How many Joules are absorbed by a pot of water with a mass of 500. g in order to
    14·1 answer
  • A firefighting crew uses a water cannon that shoots water at 25.0 m/s at a fixed angle of 53.0° above the horizontal. The fire-f
    5·1 answer
  • How does a material become a magnet?​
    5·1 answer
  • The property of an object at rest to remain at rest is known as??
    8·1 answer
  • Many older people become farsighted as ?
    9·1 answer
  • A boy pushes a 5 kg box across the floor with a force of 25 N. There is a 5 N frictional force opposing him. What is the net for
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!