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
Orlov [11]
3 years ago
5

A stone is dropped from a height of 49m and simultaneously another ball is thrown upward from the ground with a speed of 40m/s.

when and where do the two stone meet
​
Physics
1 answer:
Lilit [14]3 years ago
5 0

Answer:

S1 = 1/2 g t^2     distance stone falls in time t

S2 = Vy t - 1/2 g t^2   distance thrown stone rises in time t

H = 49 = S1 + S2 = Vy t

t = 49 / 40 sec   time when stones meet

Check:

Stone 1 falls:      1/2 g t^2 = 1/2 * 9.8 * (49 / 40)^2 = 7.35 m

Stone 2 rises :  40 * (49 / 40) - 1/2 * 9.8 (49 / 40)^2 = 41.65 m

You might be interested in
Identify the following terms:
anastassius [24]

Answer:

atom -
the smallest particle of a chemical element that can exist.

atomic mass-
the quantity of matter contained in an atom of an element

atomic weight -
ratio of the average mass of a chemical element's atoms to some standard

protons-
stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 × 10−27 kg

electrons-
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids

neutrons-
a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

energy levels-
one of the stable states of constant energy that may be assumed by a physical system  
[used especially of the quantum states of electrons in atoms and of nuclei. — called also energy state.]

Covalent bonds

the interatomic linkage that results from the sharing of an electron pair between two atoms.

ionic bonds
type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Valence electrons
a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom.

Lewis Dot Diagram
A way of representing atoms or molecules by showing electrons as dots surrounding the element symbol. One bond is represented as two electrons.

4 0
1 year ago
Solar System Model Comparison and Contrast Chart
kotykmax [81]
What are you trying to here?
8 0
3 years ago
describe the physics modeling process in moving a basketball and say what effects you should overlook​
Dahasolnce [82]

Answer:ui9i

Explanation:

jiooooooooooooo

7 0
3 years ago
To calculate the change in kinetic energy, you must know the force as a function of _______. The work done by the force causes t
aliya0001 [1]

To calculate the change in kinetic energy, you must know the force as a function of position. The work done by the force causes the kinetic energy change

Explanation:

The work-energy theorem states that the change in kinetic enegy of an object is equal to the work done on the object:

\Delta E_k = W

where the work done is the integral of the force over the position of the object:

W=\int F(x) dx

As we see from the formula, the magnitude of the force F(x) can be dependent from the position of the object, therefore in order to solve correctly the integral and find the work done on the object, it is required to know the behaviour of the force as a function of the position, x.

6 0
2 years ago
The elements in a column of the periodic table _____.
Shtirlitz [24]
C. have similar properties
(this is because they have the same number of electrons in the outer orbital)
7 0
3 years ago
Other questions:
  • PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!
    7·2 answers
  • Suppose you want to test the hypothesis that plants grow taller when they receive more sunlight. Identify and independent variab
    14·1 answer
  • Which is not a characteristic of a heat pump?
    10·2 answers
  • A 1400 kg vehicle travelling at 22 m/s slows at a constant rate to 4.5 m/s in 6.75 s. What was the net force acting on the car d
    9·1 answer
  • What regions contain the largest concentration of oil wells
    13·1 answer
  • Why is it important that two different metals are used in building an electrochemic<br> cell?
    9·1 answer
  • What can always be said about a negatively-charged ion?
    6·1 answer
  • Juan is making ice tea. When he adds ice to the tea, why does the tea cool down?​
    9·1 answer
  • A star such as the Sun starts out as a protostar with a diameter a hundred times larger than its diameter during its main-sequen
    11·1 answer
  • Why is electric current scalar quantity with having direction ?​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!