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
AysviL [449]
3 years ago
6

A vector has components Ax = 12.0 m and Ay= 5.00 m. What is the angle that vector A makes with the x-axis?a. 67.4ob. 32.6oc. 22.

6od. 12.6o
Physics
1 answer:
antoniya [11.8K]3 years ago
5 0

Answer:

C.22.6°

Explanation:

Ax = ACosθ,

A = Ax/Cosθ    .....equ1

Ay = Asinθ,

A= Ay/sinθ      .....equ 2

equate equation 1 and 2.

Ax/Cosθ = Ay/sinθ

Ax = 12.0 m,  Ay= 5.00 m

12/Cosθ = 5/sinθ

θ = 22.6°

You might be interested in
The near point of an eye is 56.0 cm. A corrective lens is to be used to allow this eye to focus clearly on objects at the distan
irakobra [83]

Answer:

Explanation:

Near point = 56 cm .

near point of healthy person = 25 cm

person suffers from long sightedness

convex lens will be required .

object distance u  = 25 cm

image distance   v = 56 cm

both will be negative as both are in front of the lens.

lens formula

I/v - 1 / u = 1/f

- 1/56 +1/25 = 1/f

- .01785 + .04 = 1/f

1/f  = .02215

f = 45.15 cm .

4 0
3 years ago
Why dont animal cells need chloroplasts?
Zigmanuir [339]
Animals don't make Their own food. they instead depend on the food made by plants. hence no need for chloroplasts
3 0
3 years ago
Read 2 more answers
I wonder if people that say that there ugly is to get attention (not to be mean...)​
alexandr1967 [171]
They do. mostly because they want validation from others
5 0
2 years ago
Read 2 more answers
For all those who are in k12 I need help on this paragraph
svetoff [14.1K]

Answer:

its bad

Explanation:

4 0
3 years ago
En una fundición hay un horno eléctrico con capacidad para fundir totalmente 540 kg de cobre. Si la temperatura inicial del cobr
11Alexandr11 [23.1K]

Answer:

Q = 2.95*10^5 kJ

Explanation:

In order to calculate the energy required to melt the cooper, you first calculate the energy required to reach the boiling temperature. You use the following formula:

Q_1=mc(T_b-T_1)     (1)

m: mass of cooper = 540 kg

c: specific heat of cooper = 390 J/kg°C

Tb: boiling temperature of cooper = 1080°C

T1: initial temperature of cooper = 20°C

You replace the values of the parameters in the equation (1):

Q_1=(540kg)(390\frac{J}{kg.\°C})(1080\°C-20\°C)=2.23*10^8J

Next, you calculate the energy required to melt the cooper by using the following formula:

Q_2=mL_f         (2)

Lf: melting constant of cooper = 134000J/kg

Q_2=(540kg)(134000\frac{J}{kg})=7.24*10^7J

Finally, the total amount of energy required to melt the cooper from a temperature of 20°C is the sum of Q1 and Q2:

Q=Q_1+Q_2=2.23*10^8J+7.24*10^7J=2.95*10^8J=2.95*10^5kJ

The total energy required is 2.95*10^5 kJ

3 0
3 years ago
Other questions:
  • "Comparing microwaves and visible light, which of the following is true? 1. Microwaves have higher frequency, same speed, and lo
    15·1 answer
  • Can Someone help me answer the question?
    14·1 answer
  • What is the difference b/w distance and displacement?
    10·1 answer
  • What is escape velocity​
    11·2 answers
  • Which of these components is not necessary for current to flow in a series or parallel circuit?
    11·1 answer
  • A bob of mass of 0.18 kilograms is released from a height of 45 meters above the ground level. What is the value of the kinetic
    9·1 answer
  • The volume of an irregular object can be measured by
    5·1 answer
  • Give an example of a vertical motion with a positive velocity and a negative acceleration. Give an example of a vertical motion
    11·1 answer
  • I WILL MARK BRAINLIEST!
    6·1 answer
  • When using the lens equation, a negative value as the solution for di indicates that the image is real. Virtual. Upright. Invert
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!