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
Mamont248 [21]
3 years ago
7

A vector has an x-component

Physics
1 answer:
9966 [12]3 years ago
4 0

Explanation:

The magnitude of a vector v can be found using Pythagorean's theorem.

||v|| = √(vₓ² + vᵧ²)

||v|| = √((-309)² + (187)²)

||v|| ≈ 361

You can find the angle of a vector using trigonometry.

tan θ = vᵧ / vₓ

tan θ = 187 / -309

θ ≈ 149° or θ ≈ 329°

vₓ is negative and vᵧ is positive, so θ must be in the second quadrant.  Therefore, θ ≈ 149°.

You might be interested in
The loudness of sound is the wave's ____.
Anni [7]
194db is the loudest Sound wave
5 0
3 years ago
Read 2 more answers
Reactive elements such as alkali metals and halogens are found in nature only as
bonufazy [111]

Compounds

Explanation:

Reactive elements such as alkali metals and halogens are found in nature only as compounds. Such elements are too unstable to remain as stable atoms, therefore they readily combine and form compounds.

  • Compounds are formed when two atoms combines together to share electrons.
  • They either lose, gain, or share electrons between themselves.
  • In the end, they end up becoming more stable.
  • This is the reason why atoms combine.
  • Unstable elements are very reactive especially alkali metals and halogens.
  • On their own, they are unstable and prefers to bond with other atoms in order to gain a measure of stability.
  • This is why they are found in combined state in nature.

Learn more:

Compound brainly.com/question/10585691

Noble gases brainly.com/question/1781595

#learnwithBrainly

4 0
3 years ago
Explain the difference between science usage and common usage for the term resistance
san4es73 [151]
Keremiad<span> is a long literary work, usually in prose, but sometimes in verse, in which the author bitterly laments the state of society and its morals in a serious tone of sustained invective, and always contains a prophecy of society's imminent downfall. </span>
3 0
3 years ago
The drag on a pitched baseball can be surprisingly large. Suppose a 145 g baseball with a diameter of 7.4 cm has an initial spee
kupik [55]

Answer:

<h2>Part A)</h2><h2>Acceleration of the ball is 10.1 m/s/s</h2><h2>Part B)</h2><h2>the final speed of the ball is given as</h2><h2>v_f = 35.3 m/s</h2>

Explanation:

Part a)

As we know that drag force is given as

F = \frac{C_d \rho A v^2}{2}

C_d = 0.35

A = \frac{\pi d^2}{4}

A = \frac{\pi(0.074)^2}{4}

A = 4.3 \times 10^{-3} m^2

v = 40.2 m/s

so we have

F = \frac{0.35\times 1.2 (4.3 \times 10^{-3})(40.2)^2}{2}

F = 1.46 N

So acceleration of the ball is

a = \frac{F}{m}

a = \frac{1.46}{0.145}

a = 10.1 m/s^2

Part B)

As per kinematics we know that

v_f^2 - v_i^2 = 2 a d

v_f^2 - 40.2^2 = 2(-10.1)(18.4)

v_f = 35.3 m/s

4 0
3 years ago
True or false question please help me out
Len [333]

Answer:

thats true

Explanation:

7 0
2 years ago
Other questions:
  • Radiation emitted from human skin reaches its peak at λ = 940 µm. (a) What is the frequency of this radiation? (b) What type of
    12·1 answer
  • Which liquid is more dense ???? alcohol or water
    11·1 answer
  • A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii and are of uniform density. If the three are r
    6·1 answer
  • You throw a ball upwards at 22 m/s. How high will it go?
    13·2 answers
  • Determine explicitly which is faster, 75 miles per hour or 75 m/s? Express all your results in MKS units and explain your conclu
    10·1 answer
  • How many neutrons does element X have if its atomic number is 48 and its mass number is 167?
    11·1 answer
  • A rope hangs between two cliffs, edge A and edge B. There is a 250 kg hiker sliding across and is closer to
    5·1 answer
  • Chimneys don't get smoke in the house because of...?
    11·2 answers
  • I WILLL MARK YOUUUUUUU HELPPPP
    6·2 answers
  • Mental health can be improved by (5 points)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!