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
frosja888 [35]
3 years ago
6

The sum of two or more vectors is called a vector.

Physics
1 answer:
Colt1911 [192]3 years ago
7 0

Answer:

False.

Explanation:

The sum of two or more vectors is called a resultant.

You might be interested in
A porcupine eats 3,000 J of plant material. Of this, 2,100 J is indigestible and is eliminated as feces, 800 J are used in cellu
Aloiza [94]

Answer:

3%

Explanation:

The total energy ingested is 3000J and of those 3000J, 100J are used for growth and reproduction, this is the part of production in the porcupine, since the other 800J and 2100J are used for internal processes of the porcupine.

Therefore the production efficiency is 100J of the 3000J, let's find out how much it is in percentage:

\frac{100}{3000}=0.033

⇒0.033=3.3% ≈ 3%

The correct option es 3% of production efficiency.

7 0
3 years ago
17. Two masses, m1 and m2 are separated a distanced. What changes in the variables will result in no change in the
miv72 [106K]

in my opinion, c is the right answer

8 0
3 years ago
Please answer asap!
slavikrds [6]
Because the earth revolves around the sun and the whole earth isn’t always facing the sun it changes that’s why we have night and day and summer and winter etc
6 0
4 years ago
What is the value of the phase angle ϕ if the initial velocity is positive and the initial displacement is negative?
harina [27]

Answer:

-2π ≤ ∅ ≤ 3π/2

0 ≤ ∅ ≤ π/2

Explanation:

In simple harmonic motion, the displacement and velocity vectors are as follows:

x(t) = A\cos(\omega t + \phi)\\v(t) = -\omega A\sin(\omega t + \phi)

where ∅ is the phase angle. At t = 0, the initial displacement and velocity are

x(0) = A\cos(\phi)\\v(0) = -\omega A\sin(\phi)

According to two equations, we need to find the ∅ values which makes both cosine and sine terms positive.

So, ∅ is in the range: [-2π, -3π/2] and [0,π/2]

4 0
3 years ago
A stone whirled on a string experiences a centripetal acceleration of 10 m/s². If the string were shortened to half its length (
LUCKY_DIMON [66]

Answer:

a = 80 m/s²

Explanation:

10 = v²/r

a = (2v)²/(r/2)

a = 4v²•(2/r)

a = 8(v²/r)

a = 8(10)

a = 80 m/s²

4 0
3 years ago
Other questions:
  • Why do cities located in the west have different climates and temperatures in the east cities?
    7·1 answer
  • PLEASE HELP!! I NEED TO GO TO SLEEP!! WILL MARK BRAINLIEST TO THE PERSON WHO ANSWERS QUICKLY AND CORRECTLY! 15 POINTS!
    9·2 answers
  • To help prevent people from getting the Ebola virus, countries around the world paid to help doctors develop a new vaccine. Now
    9·1 answer
  • Does energy make things move
    14·2 answers
  • A piece of alloy has a measured mass of 86g in air and 73g when immersed in water. Find it's volume and it's density.
    13·1 answer
  • In the laboratory, a ball is dropped onto a force-sensing platform several times, each time hitting a different surface (foam, f
    6·1 answer
  • Brainliest for correct answers :)
    11·1 answer
  • Why cant we see our surroundings clearly when we enter a darkened cinema hall
    10·2 answers
  • What was the first car fitted with an alternator, rather than a direct current dynamo?.
    8·2 answers
  • Describe the differences between the energy, spacing, andmovement of molecules in a solid, a liquid, and a gas.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!