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
koban [17]
4 years ago
11

A vector has components Ax = 52.0 m and Ay = 41.0 m. Find: (a) The length of the vector A.

Physics
1 answer:
vredina [299]4 years ago
4 0

Answer:

Part a)

A = 66.2 m

Part b)

Angle = 38.35 degree

Explanation:

Part a)

Length of the vector is the magnitude of the vector

here we know that

A_x = 52.0 m

A_y = 41.0 m

now we have

A = \sqrt{A_x^2 + A_y^2}

A = \sqrt{52^2 + 41^2}

A = 66.2 m

Part b)

Angle made by the vector is given as

tan\theta = \frac{A_y}{A_x}

tan\theta = \frac{41}{52}

\theta = 38.25 degree

You might be interested in
How is the pressure exerted and the area on which it is exerted are related to each other?
andrezito [222]
Pressure = force/area
3 0
4 years ago
When does a scientist create the conclusion?
Gre4nikov [31]


The best answer is d - while comparing the data with the hypothesis. The scientific method defines the correct steps as:

1. observation - use of the five senses to learn about something.

2. Question - where you raise questions based on your observation.

3. Hypothesis - a prediction or guess of what the answer to the question is.

4. Method - point where you test the hypothesis by carrying out an experiment.

5. Results / data - this is what happened after each step of the experiment.

6. Conclusion - where the results of the experiment are discussed and it  is summarized if the prediction was true or not, based on data from the results.


5 0
4 years ago
Urgent help for a physics exercise!
Zigmanuir [339]

a)

Amplitude of wave is given as maximum displacement from mean position

So here amplitude is 1.25 cm

b)

Wavelength is the length of the wave that it travels in one time period

From graph we can say the wavelength is given as 3cm

PART C)

Time period of wave is the time after which it repeats its shape

Speed of the wave = 21 cm/s

time period = wavelength / speed

T = \frac{3}{21}

T = \frac{1}{7} s

Now frequency is

f = \frac{1}{T}

f = 7 Hz

PART D)

Time period = \frac{1}{f}[/tex]

T = 0.143 s

6 0
4 years ago
Explain why the student should open the switch after each<br>reading. ​
vova2212 [387]

Answer:

Maybe to get different readings

5 0
3 years ago
A helicopter descends from a height of 600 m with uniform negative acceleration, reaching the ground at rest in 5.00 minutes. de
uranmaximum [27]
Given:
h = 600 m, the height of descent
t = 5 min = 5*60 = 300 s, the time of descent.

Let a =  the acceleration of descent., m/s².
Let u =  initial velocity of descent, m/s.
Let t = time of descent, s.
The final velocity is v = 0 m/s because the helicopter comes to rest on the ground.
Note that u,  v, and a are measured as positive upward.

Then
 u + at = v
(u m/s) + (a m/s²)*(t s) = 0
u = - at
u = - 300a                  (1)

Also,
u*t + (1/2)at² = -h
(um/s)*(t s) + (1/2)(a m/s²)*(t s)² = 600
ut + (1/2)at² = 600       (2)
From (1), obtain
-300a +(1/2)(a)(90000) = -600
44700a = -600
a = - 1.3423 x 10⁻² m/s²

From (1), obtain
u = - 300*(-1.3423 x 10⁻²) = 4.03 m/s

Answer:
The acceleration is 0.0134 m/s² downward.
The initial velocity is 4.0 m/s upward.

3 0
3 years ago
Other questions:
  • Mary is an avid game show fan and one of the contestants on a popular game show. She spins the wheel and after 1.5 revolutions,
    6·1 answer
  • A 7.7 kg sphere makes a perfectly inelastic collision with a second sphere initially at rest. The composite system moves with a
    12·2 answers
  • If a nearsighted person has a far point df that is 3.50m from the eye, what is the focal length f1 of the contact lenses that th
    12·1 answer
  • In the lab, a student is investigating the effects of texting and driving on reaction time. A
    11·1 answer
  • A temperature of 20°c is equivalent to approximately
    11·2 answers
  • . Two charges, Q1 and Q2 , are separated by a certain distance R. If the magnitudes of the charges are halved, and their separat
    15·1 answer
  • An Airbus A320 jetliner has a takeoff mass of 75,000 kg. It reaches its takeoff speed of 82 m/s (180 mph) in 35 s. What is the t
    9·1 answer
  • Which statement is true of a glass lens that diverges light in air?
    5·2 answers
  • If vector A=2i+3j-k and vector B=4i+6j-2k. The angle between them will be: a) 0°b)45°c)90°d)60°​
    5·1 answer
  • What is the x-component of a vector with a magnitude of 115 km at an angle of 22°?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!