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
Butoxors [25]
3 years ago
5

The law of conservation of energy stated that ?

Physics
1 answer:
givi [52]3 years ago
5 0

Answer:

The total energy of an isolated remains constant. It is said to be conserved over time.

You might be interested in
6/10
g100num [7]

Answer:pounds

Explanation:

7 0
3 years ago
The distance between a speaker and a listener is 8.0 m. Determine the frequency of the sound wave if exactly 20 waves are formed
dmitriy555 [2]

The frequency of the wave is 6800 Hz

<u>Explanation:</u>

Given:

Wave number, n = 20

Speed of light, v = 340 m/s

Frequency, f = ?

we know:

wave number = \frac{frequency}{speed of light}

20 = \frac{f}{340 m/s} \\\\f = 20 X 340 s^-^1\\\\f = 6800 Hz

Therefore, the frequency of the wave is 6800 Hz

4 0
3 years ago
18. If the distance from a converging lens to the object is less than the focal length of the lens, the image will be _______ th
skad [1K]
Here's a quick way to find out. Pick up your glasses, bifocals work best, and find the focal length with a flashlight against a book. If I remember right, the object should be magnified and upside down. So, A.
5 0
3 years ago
-What do you think happened to make the Moon look the way it does?
goldenfox [79]

Answer:  The physics of evolution had made the moon like it is today....Please watch this video from you tube about the evolution of the moon.

Explanation:

https://youtu.be/UIKmSQqp8wY

5 0
3 years ago
A car of mass m accelerates from speed v_1 to speed v_2 while going up a slope that makes an angle theta with the horizontal. Th
Karo-lina-s [1.5K]

Answer:

Work done by external force is given as

Work_{external} = mgLsin\theta + \mu mgLcos(\theta) + \frac{1}{2}mv_2^2 - \frac{1}{2}mv_1^2

Explanation:

As per work energy Theorem we can say that work done by all force on the car is equal to change in kinetic energy of the car

so we will have

Work_{external} + Work_{gravity} + Work_{friction} = \frac{1}{2}mv_2^2 - \frac{1}{2}mv_1^2

now we have

W_{gravity} = -mg(Lsin\theta)

W_{friction} = -\mu mgcos(\theta) L

so from above equation

Work_{external} - mgLsin\theta - \mu mgLcos(\theta) = \frac{1}{2}mv_2^2 - \frac{1}{2}mv_1^2

so from above equation work done by external force is given as

Work_{external} = mgLsin\theta + \mu mgLcos(\theta) + \frac{1}{2}mv_2^2 - \frac{1}{2}mv_1^2

8 0
3 years ago
Other questions:
  • A spherical balloon has a radius of 6.35 m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of a
    5·1 answer
  • Please solve it ,,,,,,,,,,................................
    13·1 answer
  • Which type of radioactive decay results in no change in mass number and atomic number for the starting nucleus?
    8·1 answer
  • If you have to apply 40 N of force to a crowbar to lift a rock that weighs 400 N, what is the actual mechanical advantage of the
    8·2 answers
  • A 9.0 m long uniform rod with a weight of 8 N has 3 masses hanging from it; a 4N mass 1 meter from the left end, a 2 N mass 6 me
    8·1 answer
  • A person should be able to find all the answers to their science questions in the text
    9·2 answers
  • Which city did King David make the royal capital of the Kingdom of Israel?
    7·1 answer
  • Two +1 C charges are separated by 30000 m, what is the magnitude of<br> the force?
    8·1 answer
  • If a quantity of heat equal to the magnitude of the change in mechanical energy of the water goes into the water, what is its in
    10·1 answer
  • Part A-Circumference of a circle
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!