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
Gnoma [55]
3 years ago
15

An object of mass m has these three forces acting on it (there is no normal force, "no surface"). F1 = 1 N, F2 = 9 N, and F3 = 5

N. When answering the questions below, assume the x-direction is to the right, and the y-direction is straight upwards.
Physics
1 answer:
hammer [34]3 years ago
7 0

Answer:

solved

Explanation:

a) F_net = (F2 - F3)i - F1 j

b) |Fnet| = sqrt( (F2 - F3)^2 + F1^2)

= sqrt( (9- 5)^2 + 1^2)

= 4.123 N

c) θ = tan^-1( (Fnet_y/Fnet_x)

= tan^-1( -1/(9-5) )

= -14.036°

You might be interested in
For a reaction to occur what must happen to the energy in order to break the chemical bond
Andrej [43]
Energy needs to realease
6 0
3 years ago
What happens when calcium reacts with chlorine?
choli [55]

Answer: They create calcuim chloride, CaCl2

7 0
3 years ago
From laboratory measurements, we know that a particular spectral line formed by hydrogen appears at a wavelength of 121.6 nanome
lina2011 [118]

Answer:

b) The star is moving away from us.

Explanation:

If an object moves toward us, the light waves it emits are compressed - the wavelength of the light will be shorter, making the light bluer. On the other hand, if an object moves away from us, the light waves are stretched, making it redder. If from laboratory measurements we know that a specific hydrogen spectral line appears at the wavelength of 121.6 nanometers (nm) and the spectrum of a particular star shows the same hydrogen line appearing at the wavelength of 121.8 nm, we can conclude that the star is moving away from npos, since the wavelength related to that star is more expanded.

7 0
3 years ago
Allen and Jason are chucking a speaker around. On one particular throw, Allen throws the speaker, which is playing a pure tone o
Sholpan [36]

Answer:

Explanation:

We shall apply Doppler's effect of sound .

speaker is the source , Jason is the observer . Source is moving at 10 m /s , observer is moving at  6 m/s .

apparent frequency = f_o\times\frac{V+v_o}{ V-v_s}

V is velocity of sound , v₀ is velocity of observer and v_s is velocity of source and f_o is real frequency of source .

Here V = 340 m/s , v₀ is 6 m/s , v_s is 10 m/s . f_o = f

apparent frequency =  f\times \frac{340+6}{340-10}

= f\times \frac{346}{330}

So m = 346 , n = 330 .

8 0
3 years ago
What is kinetic energy
Elena L [17]

Answer:

energy which a body possesses by virtue of being in motion.

Explanation:

7 0
3 years ago
Other questions:
  • Write a hypothesis about the effect of the magnet polarity on the induced current. Use the "if . . . then . . . because . . ." f
    14·2 answers
  • The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.724 W/m2. What is the maximum va
    12·1 answer
  • What is magnetic declination?
    15·2 answers
  • A bicyclist rides forward with a positive acceleration. How would her acceleration be different if she had less mass?
    5·2 answers
  • A veterinarian thinks that a dog has swallowed a key ring. Which types of electromagnetic waves is the doctor most likely
    7·2 answers
  • If humans cannot see ultraviolet waves how can ultraviolet light be used to gather evidence of a crime
    10·2 answers
  • The number 0.00325 × 10-8 cm can be expressed in millimeters as A) 3.25 × 10-11 mm. B) 3.25 × 10-10 mm. C) 3.25 × 10-12 mm. D) 3
    10·1 answer
  • what color does acid turn red litmus papera substance tested with blue litmus paper, is clear and colorless, and feels slippery.
    7·1 answer
  • A scientist uses a camera to study the stars.
    7·2 answers
  • HELP PLEASE...Arnold built a machine to help deliver the morning paper.He had to pull with 38N of force to move a stack of paper
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!