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
ANEK [815]
3 years ago
9

A woman steps in front of a child to keep him from running off. which term best describes this example? negative work positive w

ork negative force positive force
Physics
2 answers:
vladimir1956 [14]3 years ago
5 0

Answer:

Negative force.

Explanation:

Here the woman is applying a force to stop the motion of the child so the nature of force is negative. after applying the force child stops without any displacement means displacement is zero.

Since we know that

    WORK= FORCE * DISPLACEMENT

    WORK= FORCE* 0 (ZERO)

    WORK= ZERO.

means no work is done .only negative force would be the answer.

lana [24]3 years ago
4 0

Answer:

negative force

Explanation:

Here woman is applying the force to stop the child or to prevent him from running.

Here we know that the force applied by the woman is opposite to the motion of child but here the child is not displaced by this applied force but the child is only prevented his running.

So here the work done by the woman is zero as there is no displacement by this force.

But here we can say that the the force of woman is against the motion of child so here this force is opposite force and hence it is termed as negative force here.

so correct answer will be

negative force

You might be interested in
A rockets thruster provides a 300 N force to the right . Air resistance causes a 130 N to the left what is the net force?
mel-nik [20]

Answer:

+300N-130N=170N

Explanation:

because two forces in opposite direction one take +and the other takes -

6 0
3 years ago
Two resistors with resistance values of 4.5 Ω and 2.3 Ω are connected in series or parallel
kenny6666 [7]

Explanation:

Given that,

Two resistors 4.5 Ω and 2.3 Ω .

Potential difference = 30 V

When they are in series, the current through each resistor remains the same. First find the equivalent resistance.

R' = 4.5 + 2.3

= 6.8 Ω

Current,

I=\dfrac{V}{R'}\\\\I=\dfrac{30}{6.8}\\\\=4.41\ A

So, the current through both lightbulb is the same i.e. 4.41 A.

When they are in parallel, the current divides.

Current flowing in 4.5 resistor,

I_1=\dfrac{V}{R_1}\\\\=\dfrac{30}{4.5}\\\\I_1=6.7\ A

Current flowing in 2.3 ohm resistor,

I_2=\dfrac{V}{R_2}\\\\=\dfrac{30}{2.3}\\\\I_2=13.04

In parallel combination, are brighter than bulbs in series.

5 0
3 years ago
In his famous experiment, Rutherford fired alpha particles at a thin gold film. Most of the alpha particles went through the fir
ale4655 [162]

Answer:

1. The nucleus is about 1/2 the size of the atom

Explanation:

Alpha particles are positive charge particles and they are bounced back by the nucleus because nucleus is also same size

Now in present experiment Rutherford found that very few alpha particles are bounced back along same path which shows that very small region inside the nucleus is having positive charge and rest part of the atom is empty.

Now if we found that half of the alpha particles are bounced back then it shows that size of the nucleus is very large now as compare to previous one because only nucleus can bounce back the alpha particles

so correct answer will be

1. The nucleus is about 1/2 the size of the atom

5 0
3 years ago
samantha a high school teacher wants to spend more time with her children and is looking for a job in her field. what would be a
sp2606 [1]

She could look for an online job or a job she can work at from home.

3 0
3 years ago
Read 2 more answers
Which of the following is NOT a characteristic of a state?
Free_Kalibri [48]
There are four characteristics of a state. population,government,sovereignty,and territory. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Gary is trying to think of an object that could model a sunspot. His teacher tells him that such an object might be found right
    7·2 answers
  • Using the word “more” to mean “I want another cookie” is an example of a( n):
    5·1 answer
  • The compressor of an air conditioner draws an electric current of 16.2 A when it starts up. If the start-up time is 1.45 s long,
    13·1 answer
  • Which form of friction produces the least amount of force?
    10·2 answers
  • A car having a mass of 500 kg is initially at rest. A constant 1,000 N net force acts on the car over a distance of 50 m, causin
    10·1 answer
  • On your business card , you position your businesses as "the area's most creative cookery " this phrase is your
    11·1 answer
  • What is FALSE about E coli and the lac operon? A. The lac Y and lac Z genes are turned off when lactose is present.B. The lac Y
    9·1 answer
  • Which statement is true about magnetic poles?
    7·2 answers
  • A calculator displays a result such as 1,365 248 0 107 kg. The estimated uncertainty in the result is 2%. How many digits should
    10·1 answer
  • What type of energy depends upon an object mass and the object speed?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!