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
Sindrei [870]
2 years ago
7

A+B A=3i+4j-k B=5i+6j+2k​

Physics
1 answer:
OlgaM077 [116]2 years ago
7 0

\text{Given that,}\\\\\vec A =3 \hat i + 4 \hat j - \hat k ~ \text{and}~ \vec B = 5\hat i + 6 \hat j +2 \hat k \\ \\\text{Now,}\\\\\vec A + \vec B = 3 \hat i  +4 \hat j - \hat k + 5 \hat i + 6 \hat j + 2 \hat k\\\\~~~~~~~~~~=8 \hat i +10 \hat i + \hat k

You might be interested in
Please help me!!!!<br> Describe the roles these organisms play in their ecosystem.
creativ13 [48]

Answer:

Explanation:

Deer = primary consumer

Green plants = producer

Fungi = decomposers

3 0
3 years ago
If you set up set up your account to use a security key, can you still get in without having the physical key ?
butalik [34]

Answer:

yes \\

have a nice day T_T

8 0
3 years ago
A boy whirls a stone in a horizontal circle of radius 1.4 m and at height 1.5 m above ground level. The string breaks, and the s
balandron [24]

Answer:233.23 m/s^2

Explanation:

Given

radius of circle=1.4 m

Height of stone above ground=1.5 m

Horizontal distance(R)=10 m

It is given at the time of break stone flies horizontally thus stone to cover a height of 1.5 m in time t before reaching ground

1.5=0+\frac{gt^2}{2}

t=0.55 s

Initial horizontal velocity at the time of break is given by u

R=u\times t

10=u\times 0.55

u=18.07 m/s

Therefore magnitude of centripetal acceleration is given by

a_c=\frac{u^2}{r}=\frac{18.07^2}{1.4}=233.23 m/s^2

6 0
3 years ago
Two difference between lever and pulley​
Annette [7]

Answer:

Differences can be :

1. Lever is onr of the six simple machines but pulley is a simple machine which has a wheel and axle .

2. Lever is of 3 types (first class , second class , third class ) but pulley is of only 2 types

I hope this helps you

7 0
3 years ago
Light rays travel from one medium into another and refract away from the boundary. What changes about the light to cause this re
vaieri [72.5K]

Answer:

a

Explanation:

I think its a its speed increases.....

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which surface produces the least friction when someone walks on it
    7·1 answer
  • In an electron dot diagram, the symbol for an element is used to represent
    12·2 answers
  • What happens to a light ray if it is incident on a reflective surface along the normal?
    8·1 answer
  • A thin, metallic spherical shell of radius 0.227 m has a total charge of 6.03 × 10 − 6 C placed on it.
    11·1 answer
  • The outer surface of a skier’s clothes of emissivity 0.7000.700 is at a temperature of 5.505.50 °C. Find the rate of radiation i
    15·2 answers
  • Does Mike wosowski blink or wink
    10·2 answers
  • What happens when a magenta light is shone on a green surface?
    9·1 answer
  • Why are isotopes not shown on the periodic table
    11·1 answer
  • Temperature measures the average _____ of the particles in a material
    6·1 answer
  • A jet can travel at 400 minutes per second how far will it travel at this speed in 3 seconds​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!