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
elixir [45]
3 years ago
14

How much work is done? A Net Force of 9.0 N acts through a distance of 3.0 m in a time of 3.0 s. The answers are 3.0 J, 9.0 J, 2

7 J, 81 J.
Physics
1 answer:
Vadim26 [7]3 years ago
5 0
If the force and the motion are along the same direction (like it is here) then work is force*distance.  The time doesn't come into play until you want the power used.  So here
W=9.0*3.0=27J
You might be interested in
As pressure decreases, temperature
Pani-rosa [81]
Temperature doesn't do anything, the boiling point of stuff decreases. If you put water in a vacuum chainber then it will start to boil
5 0
3 years ago
A constant torque is applied to a rigid wheel whose moment of inertia is 2.0 kg · m2 around the axis of rotation. If the wheel s
Jlenok [28]

Answer:

The applied torque is 3.84 N-m.      

Explanation:

Given that,

Moment of inertia of the wheel is 2\ kg-m^2

Initial speed of the wheel is 0 (at rest)

Final angular speed is 25 rad/s

Time, t = 13 s

The relation between moment of inertia and torque is given by :

\tau=I\alpha \\\\\tau=I\times \dfrac{\omega_f}{t}\\\\\tau=2\times \dfrac{25}{13}\\\\\tau=+3.84\ N-m

So, the applied torque is 3.84 N-m.

4 0
3 years ago
What kind of energy do most electric inventions give off?
krek1111 [17]

Answer:

Electricity?

Explanation:

4 0
2 years ago
scientific endeavor should only be pursued after known tradeoffs associated with the research have been considered. True or Fals
AfilCa [17]
This is false. There were many times in history when people discovered something that they didn't even know was possible or didn't even plan to discover it. Knowing tradeoffs doesn't mean that something won't surprise you or that all will go according to plan.
8 0
3 years ago
which of the four forces makes paint cling to a wall ?which force makes adhesive sticky?which force makes wax to stick a car ?
True [87]

Answer:

This question is incomplete

Explanation:

The question is incomplete because of the absence of options.

However, <u>the force that makes a paint cling to a wall is adhesive force</u>. Adhesive force is the force between two unlike substances like a liquid clinging to a solid surface.

The force between adhesives or glue is also the force that makes them sticky. <u>This force is referred to as cohesive force</u>. This is a force found in between similar molecules (unlike adhesive force found between dissimilar molecules).

<u>The force that makes wax to stick to a car is electromagnetic force</u>. This is a force between charged particles; whether they appear to be moving or not. These particles of opposite charges come together to form a neutral force. In this case, charged atoms of the car and the wax come together (which causes what we see as the wax sticking to the car).

8 0
2 years ago
Other questions:
  • What is the speed of sound for a noise that travels 2km in 5.8s?​
    8·1 answer
  • Which of the following statements is false? In solids, the particles do not move around or change position; they can only vibrat
    11·2 answers
  • Scientific knowledge is both long lasting and open to change. In your own words, explain why scientific knowledge should be re-e
    13·1 answer
  • The Nichrome wire is replaced by a wire of the same length and diameter, and same mobile electron density but with electron mobi
    7·2 answers
  • What kind of energy drives all the processes important to life on earth?
    10·1 answer
  • One wire has a cross-sectional area of 1,250 cmil and a resistance of 7 ohms. A second piece of wire, identical except for cross
    7·1 answer
  • How long will the energy in a 1470-kJ (350-kcal) cup of yogurt last in a woman doing work at the rate of 150 W with an efficienc
    12·1 answer
  • A 1000-n weight is hanging from a 2.0 m long aluminum rod. A 500-n weight is hanging from a 1.0 m long aluminum rod. The two alu
    11·1 answer
  • A mine car (mass=390 kg) rolls at a speed of 0.50 m/s on a horizontal track, as the drawing shows. A 250-kg chunk of coal has a
    12·1 answer
  • What is the benefit of cooling down after exercise?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!