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
lukranit [14]
2 years ago
14

WHAT IS THE KE OF 2KG BALL AT SPEED 5M/S AT 40M TALL?

Physics
1 answer:
Zolol [24]2 years ago
4 0
K.e=1/2mv²
K.e=1/2 2(5)²
K.e=1/2 2×25
K.e=50/2
K.e=25J
You might be interested in
Explain how the potential energy of two charged particles depends on the distance between the charged particles and on the magni
maks197457 [2]

Answer:

According to Coulomb's Law, the potential energy of two charged particles is directly proportional to the product of the two charges and inversely proportional to the distance between the charges

Explanation:

According to Coulomb's Law, the potential energy of two charged particles is directly proportional to the product of the two charges and inversely proportional to the distance between the charges.  Since the potential energy  of two charged particles is directly proportional to the product of the two charges, its magnitude increases as the charges of the particles increases. For like charges, the potential energy is positive(the product of the two alike charges must be positive) and since potential energy is inversely proportional to the distance between the charges therefore it decreases as the particles get farther apart . For opposite charges, the potential energy is negative(the product of the two opposite charges must be negative) and since potential energy is inversely proportional to the distance between the two charges, it becomes more negative as the particles get closer together.

8 0
3 years ago
Which of the following values of pH will change blue litmus paper red?
Katen [24]
As far as I know acids turn litmus paper red and bases turn it blue. on the pH scale anything under 7 is acid and above is base so I think it is A. I am not totally sure, but that is the best answer I can give you! Good Luck! Hope this helps!!
5 0
3 years ago
A pendulum on earth swings with angular frequency ω. On an unknown planet, it swings with angular frequency ω/ 4. The accelerati
Afina-wow [57]

Answer:

g / 16

Explanation:

T = 2π \sqrt{\frac{l}{g} }

angular frequency ω = 2π /T

= \sqrt{\frac{g}{l} }

ω₁ /ω₂ = \sqrt{\frac{g_1}{g_2} }

Putting the values

ω₁ = ω ,     ω₂ = ω / 4

ω₁ /ω₂ = 4

4 =  \sqrt{\frac{g}{g_2} }

g₂ = g / 16

option d is correct.

6 0
3 years ago
A water wave has a speed of 22.0 meters/second if the wave frequency is 0.0680 hertz what is the wavelength
serg [7]
V = f(wavelength)
22.0 = 0.0680 (wavelength)
wavelength = 323.52 m
8 0
3 years ago
Science help please! Urgent!
iren2701 [21]
I<span>n </span>direct current<span> (</span>DC), the electric charge (current<span>) only flows in one direction. Electric charge in </span>alternating current<span> (</span>AC<span>), on the other hand, changes direction periodically. The voltage in </span>AC<span> circuits also periodically reverses because the </span>current<span> changes direction.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • How would the force of Earth's gravity change if a satellite were to orbit at a distance that was only 1/2 of its original orbit
    12·1 answer
  • A toy car is tied to a string and pulled across a table horizontally. Which is the
    10·2 answers
  • A sample of argon gas (molar mass 40 g) is at four times the absolute temperature of a sample of hydrogen gas (molar mass 2 g).
    13·1 answer
  • How does the shape and size of the continents today help support the Theory of Continental Drift?
    15·1 answer
  • What is a pendulum in simple words and describe its parts
    11·1 answer
  • N
    13·1 answer
  • A (11.4 A) ohm device is connected to a 115 V outlet. If the cost of the electrical energy is $0.16/kWh, determine the cost of r
    15·1 answer
  • A 20 kg weight is suspended from a string. What is the tension on the string
    5·2 answers
  • Briefly describe factors and characteristics that influence conflict resolution.
    7·2 answers
  • A 190 mH inductor is connected to an emf given by
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!