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
arsen [322]
3 years ago
8

When scientists state that energy transformation are inefficient, do they mean energy is destroyed? Explain why.

Physics
1 answer:
TiliK225 [7]3 years ago
6 0

no. energy is not created or destroyed, just transformed.

a hot light source is less efficient than a cold one ... heat is not light ...

You might be interested in
ENERGY SAVERS RACE, BRAIN BURNER. This question is about solar cars at the Chuck Norris Institute of Technology, CNIT, in Ocala,
Hunter-Best [27]

Answer:

a) d = 6.0 m

Explanation:

Since car is accelerating at uniform rate then here we can say that the distance moved by the car with uniform acceleration is given as

d = \frac{(v_f + v_i)}{2} \times t

here we know that

v_f = 10 m/s

v_i = 0

t = 1.2 s

now we will have

d = \frac{(10 + 0)}{2}\times 1.2

d = 5 \times 1.2

d = 6.0 m

4 0
3 years ago
Any ideas for the science fair? I am a 7th grader but looking for a first-place type of project.Thanks!
mihalych1998 [28]
U can do what is the strongest paper towel
7 0
3 years ago
After pushing away from each other, two objects have equal but opposite momentum. Which of the following is true for the total m
weqwewe [10]
I think the answer is B
5 0
3 years ago
For 0.37 moles of oxygen (02) gas at room temperature with active translational and rotational degrees of freedom.
Lelechka [254]

Answer:

B. 161.5 J

Explanation:

n = Number of moles = 0.37

\Delta T = Rise in the temperature of the oxygen gas = 15 K

Q = heat added in order to raise the temperature

c_{p} = specific heat at constant pressure = 3.5

At constant pressure, heat is given as

Q = n c_{p} R \Delta T\\Q = (3.5) (0.37) (8.314) (15)\\Q = 161.5 J

6 0
3 years ago
Explain what an exoskeleton is and what it is made of.
barxatty [35]
A rigid outer lair covering for the body in some invertebrate animals, especially arthropods, providing both support and protection. and is made of <span>chitin, a substance produced by many non-arthropods as well.</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • A 15 cm3 block of gold weighs 2.8 N. It is carefully submerged in a tank of mercury. One cm3 of mercury weighs 0.13 N.
    7·1 answer
  • What is the role of neutrons in an atom?
    15·2 answers
  • _____ are small buildings containing transformers and electrical equipment
    14·1 answer
  • Which of the following is an advantage of sexual reproduction is that
    5·1 answer
  • Question 7<br> (01.01 MC)<br> What is the difference between a hypothesis and a theory?
    15·1 answer
  • When you throw a pebble straight up with initial speed V, it reaches a maximum height H with no air resistance. At what speed sh
    7·1 answer
  • Is 45 m/s2 a scalar or a vector quantity and how do you know?
    11·1 answer
  • 6) If a mass of an object is decreased to half and acting force is reduced by quarter the acceleration of its motion
    7·1 answer
  • 1) A bowling has a mass of 5 kg and a speed of 8 m/s. What is its momentum?
    13·1 answer
  • How does the value of gravity vary as you go:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!