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
givi [52]
3 years ago
13

According to the law of conservation of energy, which statement must be

Physics
1 answer:
Mice21 [21]3 years ago
3 0

Answer:

B

Explanation:

Energy is neither created nor destroyed, the law of conservation states that.

You might be interested in
Modern vehicles are designed ________ in a crash to absorb kinetic energy?
nekit [7.7K]
<span>Modern vehicles are designed to crush or crumple to absorb kinetic energy.</span>
5 0
3 years ago
Ahmed fills a basket with shopping weighing 10 kg. How much work is being done on the shopping basket when he lifts it verticall
NISA [10]

The work done by the shopping basket is 147 J.

<h3>When is work said to be done?</h3>

Work is said to be done whenever a force moves an object through a certain distance.

The amount of work done on the shopping basket can be calculated using the formula below.

Formula:

  • W = mgh

Where:

  • W = Amount of work done by the basket
  • m = mass of the shopping basket
  • h = height of the shopping basket
  • g = acceleration due to gravity.

Form the question,

Given:

  • m = 10 kg
  • h = 1.5 m
  • g = 9.8 m/s²

Substitute these values into equation 2

  • W = 10(1.5)(9.8)
  • W = 147 J.

Hence, The work done by the shopping basket is 147 J.

Learn more about work done here: brainly.com/question/18762601

6 0
2 years ago
What happens when calcium reacts with chlorine?
choli [55]

Answer: They create calcuim chloride, CaCl2

7 0
2 years ago
gAn optical engineer needs to ensure that the bright fringes from a double-slit are 15.7 mm apart on a detector that is from the
igomit [66]

Answer:

d = 68.5 x 10⁻⁶ m = 68.5 μm

Explanation:

The complete question is as follows:

An optical engineer needs to ensure that the bright fringes from a double-slit are 15.7 mm apart on a detector that is  1.70m from the slits. If the slits are illuminated with coherent light of wavelength 633 nm, how far apart should the slits be?

The answer can be given by using the formula derived from Young's Double Slit Experiment:

y = \frac{\lambda L}{d}\\\\d  =\frac{\lambda L}{y}\\\\

where,

d = slit separation = ?

λ = wavelength = 633 nm = 6.33 x 10⁻⁷ m

L = distance from screen (detector) = 1.7 m

y = distance between bright fringes = 15.7 mm = 0.0157 m

Therefore,

d = \frac{(6.33\ x\ 10^{-7}\ m)(1.7\ m)}{0.0157\ m}\\\\

<u>d = 68.5 x 10⁻⁶ m = 68.5 μm</u>

7 0
3 years ago
At what angle of projectile range of maximum​
Agata [3.3K]

Answer:

45°

Explanation:

The textbooks say that the maximum range for projectile motion (with no air resistance) is 45 degrees.

7 0
3 years ago
Other questions:
  • A ball that has a mechanical energy of 65 J has 12 J of kinetic energy. The ball has J of potential energy.
    14·2 answers
  • To calculate the _____ of a moving object, divide the displacement by the time interval in which the displacement occurred.
    8·2 answers
  • 2. A 2.5 meter-long wave travels at 1 m/s towards a fixed boundary. After 2 seconds, how does the wave appear?
    10·1 answer
  • If a force is exerted on an object, is it possible for that object to be moving with constant velocity?
    7·1 answer
  • What is the best explanation for seasons?
    7·2 answers
  • What is the weight of an object(on earth) that has a mass of 50Kg (g earth=10N/Kg)
    10·1 answer
  • A student lists a set of materials
    7·1 answer
  • How much greater is the light-collecting area of a 6-meter telescope than a 3-meter telescope?.
    12·1 answer
  • 25. a small container of water is placed on a turntable inside a microwave oven, at a radius of 12.0 cm from the center. the tur
    11·1 answer
  • Most of the bending of light in the eye is done at the air-cornea interface. By what angle (θcornea) is the beam of light shown
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!