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
Lera25 [3.4K]
3 years ago
8

Two forces act on an object. One force has a magnitude of 10 N directed north, and the other force has a magnitude of 2 N direct

ed south. The net force on the object isA. 8 N south.B. 12 N south.C. 20 N north.D. 8 N north.
Physics
1 answer:
xeze [42]3 years ago
7 0

Answer:

8 N North.

Explanation:

Given that,

One force has a magnitude of 10 N directed north, and the other force has a magnitude of 2 N directed south.

We need to find the magnitude of net force acting on the object.

Let North is positive and South is negative.

Net force,

F = 10 N +(-2 N)

= 8 N

So, the magnitude of net force on the object is 8 N and it is in North direction (as it is positive). Hence, the correct option is (d) "8N north".

You might be interested in
What is it called when matter changes directly from a solid to a gas?
padilas [110]
Sublimation-is the transitional phase of solid to gas skipping the liquid phase entirely 

5 0
3 years ago
With 51 gallons of fuel in its tank, the airplane has a weight of 2390.7 pounds. What is the weight of the plane with 81 gallons
Shtirlitz [24]

Answer: 2561.7 pounds

Explanation:

If we assume the total weight of an airplane (in pounds units) as a <u>linear function</u> of the amount of fuel in its tank (in gallons) and we make a Weight vs amount of fuel graph, which resulting slope is 5.7, we can use the slope equation of the line:

m=\frac{Y-Y_{1}}{X-X_{1}}  (1)

Where:

m=5.7 is the slope of the line

Y_{1}=2390.7pounds is the airplane weight with  51 gallons of fuel in its tank (assuming we chose the Y axis for the airplane weight in the graph)

X_{1}=51gallons is the fuel in airplane's tank for a total weigth of 2390.7 pounds (assuming we chose the X axis for the a,ount of fuel in the tank in the graph)

This means we already have one point of the graph, which coordinate is:

(X_{1},Y_{1})=(51,2390.7)

Rewritting (1):

Y=m(X-X_{1})+Y_{1}  (2)

As Y is a function of X:

Y=f_{(X)}=m(X-X_{1})+Y_{1}  (3)

Substituting the known values:

f_{(X)}=5.7(X-51)+2390.7  (4)

f_{(X)}=5.7X-290.7+2390.7  (5)

f_{(X)}=5.7X+2100  (6)

Now, evaluating this function when X=81 (talking about the 81 gallons of fuel in the tank):

f_{(81)}=5.7(81)+2100  (7)

f_{(81)}=2561.7  (8)   This means the weight of the plane when it has 81 gallons of fuel in its tank is 2561.7 pounds.

3 0
3 years ago
Um chuveiro C e um forno de micro-ondas M são ligados, como não há circuito a seguir.
uysha [10]

Responder:

50A

Explicación:

Dado que el Um chuveiro y el microondas están conectados en paralelo, el mismo voltaje fluirá a través de ellos.

La potencia total consumida por ambos aparatos = 4800W + 1200W

La potencia total consumida por ambos aparatos = 6000W

Para obtener el I actual, usaremos la fórmula;

P = IV

6000 = 120I

Yo = 6000/120

Yo = 50 A

Por lo tanto, la medición de corriente del amperímetro ideal A será 50A

3 0
3 years ago
The greater the frequency of the waves, the ____________ the pitch.
anzhelika [568]

Answer:

Higher.

Explanation:

The greater the frequency the bigger the amplitude gets and the greater pitch gets.

Think - more energy, bigger waves, more waves, and higher sound

7 0
3 years ago
A 2000 kg streetcar parked in a lot has a larger momentum than a 1000 kg car going 25 meters per second on the highway.
Arturiano [62]

Answer:

Other than the fact that momentum is a "vector" quantity I wouldn't know.

If the car had a momentum opposite to the chosen positive direction then its total momentum would be negative.

7 0
3 years ago
Other questions:
  • A metal spoon can be classified as which of the following
    13·1 answer
  • What's the power input of a lamp that draws 0.2 A of current from a 230 V supply?
    6·1 answer
  • A 200 Hz tuning fork is sounded at the same time as a guitar string and a beat frequency of 4 Hz is heard. Which of the followin
    14·1 answer
  • In the generation of most anions, the energy change (kj/mol that _______ an electron is ________.
    11·1 answer
  • shoppers often take clothes outside to look at them in daylight before deciding whether to buy why do they do this pls answer
    7·1 answer
  • The speed of sound in air is 340 m/s. A sound wave that is traveling through air has a wavelength of 17 m. What is the frequency
    11·1 answer
  • HELP HELP HELP HELP HELP HELP HELP HELP <br>IM SO SAD ANF SUCH A FAILLURE​
    10·1 answer
  • A traveling wave on a taut string
    6·1 answer
  • The depth of a circular well is 5m. water level is below 2m from the upper face of the wall. Find the pressure at its base ? (g=
    12·2 answers
  • You have to make it balanced.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!