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
deff fn [24]
3 years ago
13

PLEASE HELP! A 0.423 kg object carries a +11.5 uc

Physics
1 answer:
LUCKY_DIMON [66]3 years ago
3 0

Answer:

2.15 m/s²

Explanation:

We'll begin by calculating the force of attraction between two charges. This can be obtained as follow:

Charge of 1st object (q₁) = +11.5 μC = +11.5×10¯⁶ C

Charge of 2nd object (q₂) = –7.55 μC = –7.55×10¯⁶ C

Electrical constant (K) = 9×10⁹ Nm²/C²

Distance apart (r) = 0.925 m

Force (F) =?

F = Kq₁q₂ / r²

F = 9×10⁹ × 11.5×10¯⁶ × 7.55×10¯⁶/ 0.925²

F = 0.781425 / 0.855625

F = 0.91 N

Finally, we shall determine the acceleration of the object. This can be obtained as follow:

Mass of object (m) = 0.423 Kg

Force (F) = 0.91 N

Acceleration (a) =?

F = ma

0.91 = 0.423 × a

Divide both side by 0.423

a = 0.91 / 0.423

a = 2.15 m/s²

Thus, the magnitude of the object's acceleration is 2.15 m/s²

You might be interested in
A projectile is launched with an initial velocity 60m/s at an angle 60° to the vertical. What the magnitude of it's displacement
emmasim [6.3K]

Answer:

the magnitude of the displacement after 5s is 137.31 m.

Explanation:

Given;

initial velocity of the projectile, u = 60 m/s

angle of projection, θ = 60°

time of motion, t = 5s

the vertical component of the velocity, u_y= u\ sin \theta = 60sin(60^0)

The magnitude of the displacement after 5s is calculated as;

h = u_yt -\frac{1}{2} gt^2\\\\h = 60sin (60^0)\times 5 - \frac{1}{2} (9.8)(5)^2\\\\h = 259.81-122.5\\\\h = 137.31 \ m

Therefore, the magnitude of the displacement after 5s is 137.31 m.

3 0
3 years ago
A person, of weight mg, is standing on a scale in an elevator. What will the
uranmaximum [27]

more than mg

Explanation:

the pressure

7 0
3 years ago
Action and reaction forces are described by which of Newton's laws of motion?
Ilia_Sergeevich [38]

Answer:

The first one

Explanation:

4 0
4 years ago
Read 2 more answers
The U.S. Navy has long proposed the construction of extremely low frequency (ELF waves) communications systems; such waves could
Artyom0805 [142]

Answer:

length of a quarter wavelength antenna for transmitter elf waves are zero

Explanation:

Find the length of a quarter wavelength antenna for transmitter elf waves

Given information

frequency (ELF waves) → 77Hz

Speed of light → 3\times10^8m/s

v=\lambda f-------------1

where

\lambda\\ → wavelength of the antenna

f → frequency of the ELF waves

v →  speed of light

so rewrite the equation in \lambda from

\lambda=\dfrac{v}{f}

Substitute 3\times10^8m/s = v

Substitute 75Hz = f

\lambda=\dfrac{3\times10^8m/s}{77Hz}

=3.9\times 10^6m

since we get this value,but this size of antenna mount on submarine is not possible.

so \lambda is zero

6 0
4 years ago
What makes water move through the water cycle? A the sun the rain C precipitation the ground​
Firdavs [7]

Answer: A. The Sun

Explanation: A. The Sun makes water move through the water cycle

6 0
3 years ago
Other questions:
  • If pollution is increased, then the cricket frog population will (increase/decrease/stay the same) over the span of five years.
    13·1 answer
  • Someone please help me<br>20 POINTS
    10·1 answer
  • A little boy pushes a wagon with his dog in it. The mass of the dog and wagon together is 48kg. The wagon accelerates at 0.8 m/s
    15·1 answer
  • In the diagram, the same element is represented by the Bohr model in the plum putting model of the atom. What is the name of the
    12·2 answers
  • A simple harmonic oscillator consists of a block of mass 4.10 kg attached to a spring of spring constant 240 N/m. When t = 1.70
    13·1 answer
  • A rubber ball is dropped from a height of 8m. After strikingthe floor, the ball bounces to a height of 5m. a. If the ball had bo
    13·1 answer
  • A cave explorer travels 3.0 m eastward, then 2.5 m northward, and finally 15.0 m westward. use the graphical method to find the
    8·2 answers
  • 18. Magnesium is a silvery-grey metal. When heated in air it reacts with oxygen burning with a bright flame to form a white powd
    9·1 answer
  • The mass of a body is 12 kg. What is the resulting acceleration if a forced 6 N is applied on it in the direction of motion ?​
    8·1 answer
  • Quincy has cancer and is having to take chemotherapy treatments that make him very ill after the treatment. A month ago, after h
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!