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
kumpel [21]
3 years ago
12

A 14.8-g piece of Styrofoam carries a net charge of -0.742 µC and is suspended in equilibrium above the center of a large, horiz

ontal sheet of plastic that has a uniform charge density on its surface. What is the charge per unit area on the plastic sheet?
Physics
1 answer:
MAXImum [283]3 years ago
3 0
Base on your question where a 14.8g of piece of Styrofoam carries a net charge of -0.742C and is suspended in equilibrium above the center of a large, horizontal sheet of plastic so the ask of the problem is to calculate  the charge per unit area on the plastic sheet. The answer would be 21.96
You might be interested in
The 4.0 -kg head of an ax is moving at 3 m/s when it strikes a log and penetrates 0.01m into the log. What is the average force
Elina [12.6K]

Answer:

the average force the blade exerts on the log is 1791.05 N.

Explanation:

Given;

mass of the ax head, m = 4 kg

speed of the ax, v = 3 m/s

depth traveled into the log, d = 0.01 m

The time to traveled through the depth;

s = (\frac{u+v}{2} )t\\\\0.01 =  (\frac{0+3}{2} )t\\\\0.01 = 1.5t\\\\t = \frac{0.01}{1.5} \\\\t = 0.0067 \ s

The average force the blade exerts on the log;

F = ma=\frac{mv}{t} = \frac{4 \times 3}{0.0067} = 1791.05 \ N \\\\

Therefore, the average force the blade exerts on the log is 1791.05 N.

5 0
3 years ago
Draw a stationary wave and show the position of node and antinode​
Aneli [31]

I hope that the attachment helps you..

3 0
3 years ago
In a elastic lab what did you change and why?
Vilka [71]

I changed my undershorts.  The elastic on the old ones I put on that day was deteriorated, and it completely failed when I dripped lab coffee on it, causing falldown.

7 0
3 years ago
Read 2 more answers
The diagram below shows a food web.
Mekhanik [1.2K]
i think it’s B. sorry if i’m wrong
8 0
3 years ago
Read 2 more answers
A bullet with an initial kinetic energy of 400 J strikes a wooden block where a 8000 N resistive force stops the bullet. What is
Sindrei [870]

Answer:

d = 0.05 [m] = 50 [mm]

Explanation:

We must remember the principle of conservation of energy which tells us that energy is transformed from one way to another. For this case, the initial kinetic energy is transformed into useful work that is equal to the product of force by distance.

E_{k}=F*d\\400 = 8000*d\\d = 0.05 [m] = 50 [mm]

5 0
3 years ago
Other questions:
  • If Margo pushes a box 25 meters, using a force of 45 Newtons, and it takes her 15 seconds to do so, how much power is she using?
    13·1 answer
  • A box is given a push so that it slides across the floor. how far will it go given that the How far will it go, given that the c
    15·1 answer
  • Which of the following is not a popular surface for a tennis court?
    8·1 answer
  • Given vectors D (3.00 m, 315 degrees wrt x-axis) and E (4.50 m, 53.0 degrees wrt x-axis), find the resultant R= D + E. (a) Write
    11·1 answer
  • The seatbelt across your chest should have about ________ fist width of slack.
    5·1 answer
  • Consider an electron that is 10−10 m from an alpha particle
    6·1 answer
  • Which particle of the atom has a negative charge?
    7·2 answers
  • Explain two ways that humans use electromagnetic waves.
    15·1 answer
  • A car starts at the top of a hill with 200 J of energy, and rolls down a frictionless surface. The isolated system consists of t
    8·1 answer
  • Determine the weight of a 1350 kg rock as it falls off a cliff.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!