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
vovangra [49]
3 years ago
6

Which expression represents the total net force on the block? A) 20N + 10N B) 20N x 10N C) 10N + -20N D) 12N 10N

Physics
2 answers:
Firlakuza [10]3 years ago
8 0
A is correct because net force is the summation of all forces acting on body.
Nostrana [21]3 years ago
7 0

For Future Students The Answer is C) 10N+ -20, I can confirm this because I just took the test. Hope this Helped you.

You might be interested in
HELP!!! FAST!!
7nadin3 [17]
Im think its A. A release of a large amount 9f energy
8 0
3 years ago
What provides most of the force to allow the runners to move?
kobusy [5.1K]

Answer:

When you are running the most important force that you should understand is friction. Friction is a force that opposes movement between two objects, but for runners friction makes you faster. Friction gives you a better and more efficient way to use your energy into speed.

4 0
2 years ago
A diver is on a board 1.80 m above
Virty [35]

Answer:

v = 6.95 m/s

Explanation:

Given that,

A diver is on a board 1.80 m above  the water, s = 1.8 m

The initial speed of the diver, u = 3.62 m/s

Let v is the speed with which she hit the water. It will move under the action of gravity. Using the equation of motion as follows :

v^2-u^2=2gs\\\\v=\sqrt{u^2+2gs} \\\\v=\sqrt{(3.62)^2+2(9.8)(1.8)} \\\\v=6.95\ m/s

So, she will hit the water with a speed of 6.95 m/s.

8 0
3 years ago
Read 2 more answers
Two large parallel conducting plates carrying opposite charges of equal magnitude are separated by 2.20 cm. Part A If the surfac
alukav5142 [94]

Answer:

5308.34 N/C

Explanation:

Given:

Surface density of each plate (σ) = 47.0 nC/m² = 47\times 10^{-9}\ C/m^2

Separation between the plates (d) = 2.20 cm

We know, from Gauss law for a thin sheet of plate that, the electric field at a point near the sheet of surface density 'σ' is given as:

E=\dfrac{\sigma}{2\epsilon_0}

Now, as the plates are oppositely charged, so the electric field in the region between the plates will be in same direction and thus their magnitudes gets added up. Therefore,

E_{between}=E+E=2E=\frac{2\sigma}{2\epsilon_0}=\frac{\sigma}{\epsilon_0}

Now, plug in  47\times 10^{-9}\ C/m^2 for 'σ' and 8.85\times 10^{-12}\ F/m for \epsilon_0 and solve for the electric field. This gives,

E_{between}=\frac{47\times 10^{-9}\ C/m^2}{8.854\times 10^{-12}\ F/m}\\\\E_{between}= 5308.34\ N/C

Therefore, the electric field between the plates has a magnitude of 5308.34 N/C

5 0
2 years ago
_________ is an umbrella term that applies to location-aware technologies that allow devices to communicate securely with each o
ratelena [41]

Answer:Near-field communication

Explanation:

Near Field Communication is an umbrella term that applies to location-aware technologies that allow devices to communicate securely with each other over short distances. Near-field communication is a short-range wirelessconnectivity standard that uses magnetic field induction to enable communication between devices when they're touched together, or brought within a few centimeters to each other.It also specifies a way for the devices to establish a peer-to-peer network to exchange data. After the peer to peer network has been configured, another wireless communication technology, such as Bluetooth or Wi-Fi, can be used for longer-range communication or for transferring larger amounts of data.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Who was the first head of the NASA space program was Sergei Korolov, but the Russians never identified him by name. What did the
    9·1 answer
  • Matt forgot to put the fabric softener in the wash. As his socks tumbled in the dryer, they became charged. If a small piece of
    10·1 answer
  • What are two ways to increase the energy of a wave​
    6·1 answer
  • What is the only possible value of ml for an electron in an s orbital?
    9·1 answer
  • HELP PLEASE
    13·1 answer
  • ________ is described as the pulling force transmitted by the means of a
    12·2 answers
  • When a ball bounces back when you throw it at a wall, what occurs?
    11·2 answers
  • How do density, pressure, and temperature change as the depth of Earth increases? Question 5 options: Density, pressure, and tem
    9·1 answer
  • PLZ WHAT I DOO<br> I BROKE A WINDOW WHAT I DO
    12·1 answer
  • Define homogeneous mixtures and give 3 examples.<br><br> ASAP please 25 points?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!