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
Valentin [98]
2 years ago
10

What work do you think is done when you carry a 20 N weight backpack for a 1000 m walk? will the work be positive, negative, or

potentially zero?
Physics
1 answer:
dezoksy [38]2 years ago
8 0

The work done is positive and is equal to 20000 J

<h3>What is work done?</h3>

Work done is defined as the product of force and the distance moved by the force.

Mathematically:

  • Work done = force * distance

The work done by the force = 20 * 1000 = 20000J

The work done is positive and is equal to 20000 J

Learn more about work done at: brainly.com/question/25923373

#SPJ1

You might be interested in
What is a type of force that results from turning a corner on a bicycle? ​
Romashka-Z-Leto [24]

This force is centripetal force. it is the force that will hold the rider in the circular path and prevent him from skidding off. It is equal to the friction between the tyres and the road if no banking has been done on the road at the corner.

6 0
3 years ago
Read 2 more answers
A 100 Ω resistive heater in a tank of water (1kg) increases its temperature from 10°C to 20°C over a period of 1 hour. During th
Nookie1986 [14]

Answer:48.52 kJ

Explanation:

Given

Resistance=100 \Omega

temperature increases from 10^{\circ}C to 20^{\circ}C

Voltage=50 V

Heat given(H)=\frac{V^2t}{R}

Where V=voltage applied

t=time

R=Resistance

H=\frac{50^2\times 60\times 60}{100}=90 kJ

Heat absorbed by water is

Q=mc(\Delta T)

where

m=mass of water

c=specific heat of water

\Delta T=change in temperature

Q=1000\times 4.184\times (20-10)=41.48 kJ

Therefore  90-41.48=48.52 kJ is not absorbed by water and leaves the system into the surroundings.

8 0
3 years ago
11) The circumstance MOST LIKELY to cause a compass to give an erroneous reading is standing too close to
Likurg_2 [28]
That would be the presence of a magnet anywhere near the compass.
3 0
3 years ago
The picture below shows an asteroid and a comet.
Tom [10]

Answer:

01) Asteroids are formed closer to the sun than comets.

Explanation:

Majority of asteroids are present region between Jupiter and Mars while the comets are found away from the orbits of Pluto and Neptune.

6 0
3 years ago
What is the MAJOR IMPORTANT difference between velocity and speed?
il63 [147K]
Well the difference between velocity and speed would be that velocity is basically speed with a direction with a vector assisting with it... and Speed would be distance traveled... I hoped that this helped. :)<span />
5 0
3 years ago
Read 2 more answers
Other questions:
  • An object of mass 3.05 kg, moving with an initial velocity of 5.09 i m/s, collides with and sticks to an object of mass 2.34 kg
    7·1 answer
  • If 125 j of heat energy is applied to a block of silver weighing 29.3 g, by how many degrees will the tem- perature of the silve
    5·1 answer
  • An isotope has 46 electrons, 60 neutrons, and 46 protons. Name the isotope.
    13·2 answers
  • Label the parts of a concave lens.
    5·2 answers
  • The small spheres that are moving through the circuit are the electric current. Current is the flow or movement of electrons. De
    10·2 answers
  • A car travels at a constant speed of 30km/h for .80h what is the total distance
    10·1 answer
  • Identify the units NOT used when finding the density?<br><br> 1. Length<br> 2. Volume<br> 3. Mass
    12·2 answers
  • How long has a victim been dead if his body temperature was 89.2°F?
    9·2 answers
  • I need help!!!!!!!!!!!pleaseeeeeee
    6·1 answer
  • make a sketch showing the direction of the magnetic field from the solenoid. on your sketch, label the induced north magnetic po
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!