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
Softa [21]
3 years ago
8

Vector a has a magnitude of 12.3 units and points due west. vector b points due north. what is the magnitude of b if a - b has a

magnitude of 15.0 units
Physics
1 answer:
algol [13]3 years ago
8 0

The magnitude of vector b is 8.58 Unit.

Since both the vectors a and b are perpendicular to each other, so we can apply the Pythagoras theorem to calculate the magnitude of the vector b.

Applying the Pythagoras theorem

(a-b)^2=a^2+b^2

15^2=12.3^2-b^2

b=8.58 unit

Therefor the magnitude of the vector b is 8.58 unit.

You might be interested in
Calculate the pressure exerted on the floor when an elephant who weighs 6000 N stands on one foot which has an area of 20 m2
kondor19780726 [428]

Answer:

300 Pascal

Explanation:

Given

weight or force (F) = 6000 N

area (A) = 20 m²

pressure (p) = ?

we know

the force acting normally per unit area is pressure. So

P = F / A

= 6000 / 20

= 300 Pascal

Hope it will help :)

3 0
3 years ago
Помогите плз!
Softa [21]

Все написано в скобках правильно

3 0
3 years ago
Help a girl out ?! Plz ill give brainlest
shepuryov [24]

Answer:

I am pretty sure it is B.

Explanation:

I hope this helped if it didn't I am truly sorry

5 0
2 years ago
Read 2 more answers
An alternator provides 20 A of peak current at 100 V peak AC to a resistive electric heater. How much heating power is delivered
Liono4ka [1.6K]

-- The resistance of the heater is (volts/current) = 5 ohms

-- The heating (RMS) value of a sinusoidal AC is V(peak)/√2 .  For this particular alternator, V(peak)=100V, so the heating (RMS) equivalent is 70.71 V.

-- The heating power delivered to the electric heater is (E²/R).

Power = (100/√2)² / 5

Power = 5,000 / 5

<u>Power = 1,000 watts </u>

6 0
3 years ago
As longitudional waves travel, particles in the medium are pushed together and then pulled apart. We call this
andreyandreev [35.5K]
Compression and rarefraction, the other guy's answer it's wrong
4 0
2 years ago
Other questions:
  • If the Sun were scaled down to the size of a grapefruit, about how far would you have to walk from our classroom to reach Alpha
    11·1 answer
  • N a scientific investigation, what is the name for a prediction that can be tested?
    15·1 answer
  • What are stars made from
    6·1 answer
  • The collective body of observations of a natural phenomenon on which scientific explanations are based is called?
    10·2 answers
  • In an atom, electrons ____.
    15·2 answers
  • Convert the mass to kgs thanks
    12·1 answer
  • A bond between a positively-charged particle and a negatively-charged particle is a(n) _______ bond.
    6·1 answer
  • Which energy conversion correctly describes what happens when you are dancing
    6·1 answer
  • Please answer the following question
    9·1 answer
  • It turns out that the depth in the ocean to which airborne electromagnetic signals can be detected grows with the wavelength. Th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!