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
Viefleur [7K]
3 years ago
14

Vector ????⃗ has a magnitude of 16.6 and is at an angle of 50.5∘ counterclockwise from the +x‑axis. Vector ????⃗ has a magnitude

of 24.5 and is −15.3∘ from the +x‑axis. Resolve ????⃗ and ????⃗ into components, and express in ???????????? unit vector form,
Physics
1 answer:
natka813 [3]3 years ago
8 0

Answer:

For vector u, x component = 10.558 and  y component =12.808

unit vector = 0.636 i+ 0.7716 j

For vector v, x component = 23.6316 and y component = -6.464

unit vector = 0.9645 i-0.2638 j

Explanation:

Let the vector u has magnitude 16.6

u makes an angle of 50.5° from x axis

So u_x=ucos\Theta =16.6\times cos50.5=10.558

Vertical component u_y=usin\Theta =16.6\times sin50.5=12.808

So vector u will be u = 10.558 i+12.808 j

Unit vector u=\frac{10.558i+12.808j}{\sqrt{10.558^2+12.808^2}}=0.636i+0.7716j

Now in second case let vector v has a magnitude of 24.5

Making an angle with -15.3° from x axis

So horizontal component v_x=vcos\Theta =24.5\times cos(-15.3)=23.6316

Vertical component v_y=vsin\Theta =24.5\times sin(-15.3)=-6.464

So vector v will be 23.6316 i - 6.464 j

Unit vector of v =\frac{23.6316i-6.464}{\sqrt{23.6316^2+6.464^2}}=0.9645i-0.2638j

You might be interested in
1. Household circuits are often wired with two different widths of wires: 12-gauge and 14-gauge. The 12-gauge wire has a diamete
Jet001 [13]

Answer:

This formula R =ρL/A

Where R = resistance of wire, ρ = resistivity of the wire and A = area of the wire. Shows there is an inverse relationship between Resistance and Area of the wire.

Explanation:

A simple way to explain the physics behind such an electrical code is to compare the flow of current through wires to the flow of water through pipes, they are similar in any respect. The resistance to the flow of current in an electric circuit is similar to the frictional experienced by water when flowing through water pipes. Just as water will flow easily with little resistance through a water pipe with the larger cross-sectional area than one with a smaller cross-sectional area, in the same way, wires with larger cross-sectional area will allow the flow of larger amount of current compared to wires with smaller cross-sectional area assuming all other variables are the same.

From the formula R =ρL/A

Where R = resistance of wire, ρ = resistivity of the wire and A = area of the wire

We can see that the resistance and area of the wire have an inverse relationship. An increase in the area of the wire will lead to a decrease in the resistance of the wire.

5 0
3 years ago
Read 2 more answers
What do submarines translate into pictures?
prohojiy [21]
It lets the viewer know it's something to do with underwater.
6 0
3 years ago
How do things rust? Is this chemical or mechanical weathering?
IrinaK [193]
I'll say that's mechanical weathering
6 0
3 years ago
Read 2 more answers
A spring is stretched 2.0 cm. If the same spring is stretched 8.0 cm the ratio of the second and first potential energies of the
jok3333 [9.3K]
Potential energy of spring equals K times X squared divided by 2 where X is displacement

4 times squared equals 16

choose 1st answer
 
6 0
3 years ago
An object that has kinetic energy must what ?
11Alexandr11 [23.1K]

An object that has kinetic energy must be <em>moving</em>.

The formula for an object's kinetic energy is

KE = (1/2) · (the object's mass) · <u><em>(the object's speed)²</em></u>

As you can see from the formula, if the object has no speed, then its kinetic energy is zero.  That's why kinetic energy is usually called the "energy of motion", and if an object HAS kinetic energy, then that tells you right away that it must be moving.

4 0
3 years ago
Other questions:
  • One deterrent to burglary is to leave your front porch light on all the time. If your local power utility sells energy at 17¢ pe
    13·1 answer
  • 12. A 1.2-kg bucket of water is held by a string and spun in a horizontal circle with an acceleration of 24.6
    5·1 answer
  • What is a star called that dies peacefully​
    11·2 answers
  • A hockey puck is pushed by a stick with a force of 750 newtons. The puck travels 2.0 meters in 0.30 seconds. How powerful is the
    10·2 answers
  • Rob measures the solubility of three different salts in water at 22°C.
    6·2 answers
  • Mark all the hadrons.a) Proton b) Electron c)Anti-top d) Gluon e) Tau Neutrino
    6·1 answer
  • How you could use a graduated cylinder to find the volume of a small rock
    6·1 answer
  • The recoil of a cannon is probably familiar to anyone who has watched pirate movies. This is a classic problem in momentum conse
    5·1 answer
  • Bu uyguluma neden ingilizce oldu bilen varmı​
    13·1 answer
  • Why is boiling water considered a physical change?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!