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
Goshia [24]
3 years ago
12

While moving a box 10.0 m across the floor, Sam pushes with a force of 150 N to the right. The force friction acting on the box

is 25.0 N to the left. What is the net work done on the box by these 2 forces
Physics
1 answer:
svet-max [94.6K]3 years ago
4 0

Answer:

Explanation:required formula is

W 1=F*S

W1=work done by Sam =?

F=force applied by sam=150N

S=displacement =10m

again

W2=F*S

W2=work done by friction =?

S=displacement =10m

F=friction =25N

W=W1-W2=net work done

please feel free to ask if you have any questions

You might be interested in
A gas bottle contains 0.250 mol of gas at 730 mm hg pressure. if the final pressure is 1.15 atm, how many moles of gas were adde
Ludmilka [50]

Answer: 0.049 mol



Explanation:



1) Data:


n₁ = 0.250 mol

p₁ = 730 mmHg

p₂ = 1.15 atm

n₂ - n₁ = ?


2) Assumptions:


i) ideal gas equation: pV = nRT


ii) V and T constants.


3) Solution:


i) Since the temperature and the volume must be assumed constant, you can simplify the ideal gas equation into:


pV = nRT ⇒ p/n = RT/V ⇒ p/n = constant.


ii) Then p₁ / n₁ = p₂ / n₂


⇒ n₂ = p₂ n₁ / p₁


iii) n₂ = 1.15atm × 760 mmHg/atm × 0.250 mol / 730mmHg = 0.299 mol


iv) n₂ - n₁ = 0.299 mol - 0.250 mol = 0.049 mol

7 0
3 years ago
The sound level near a noisy air conditioner is 70 dB. If two such units operate side by side, the sound level near them would b
Schach [20]

Answer:

73 db

Explanation:

A single air conditioner is equivalent to 70 dB frequency. An extra air conditioning unit would therefore double the sound frequency. It does not, however, double the decibels to 140 dB. Instead, it adds only 3 dB to the 70 dB, making the total decibels of two air conditioning units equal to 73 db

Hence the correct option is b that is 73 db

7 0
3 years ago
Jake is in chemistry class. He makes a list of the chemicals his instructor described and the properties of each.
koban [17]
Silver: bonds with other atoms because of the weak forces of the valence electrons 
FALSE - The strong forces of the valence electrons is actually the reason why silver bonds with other atoms.

Water: bonds allow for liquid state at room temperature and prevent conduction 
FALSE - Water is a good conductor.

Carbon: bonds with other atoms through strong shared electrical bonds 
TRUE - Carbon shares covalent bonds with other atoms.

Niobium: bonds allow for a strong conductivity found in stainless steel
FALSE - Iron and Carbon make up steel.
6 0
3 years ago
Read 2 more answers
HELPP!! what is not true about mitosis??
Andreyy89

Answer:

I think its A

Explanation:

7 0
3 years ago
Read 2 more answers
What is the electron configuration of this element? *for ne
Serhud [2]

Answer:

[He]2s²2p⁶

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • When a plant is entering the calvin cycle of photosythesis______.
    7·2 answers
  • How do base-isolators, the rubber and steel pads under some buildings, reduce earthquake damage?
    8·2 answers
  • Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. when they hit the ground
    12·1 answer
  • Width, height, thickness and thermal conductivity of a single pane window and the air space of a double pane window. Representat
    6·1 answer
  • An 1700 kg car is moving to the right at a constant speed of 1.50 m/s. (a) what is the net force on the car
    7·1 answer
  • Four breakers of four different sizes are filled with water to the same depth. The temperature of the water is the same in all f
    8·1 answer
  • Which one of the following is true?
    10·1 answer
  • If a ball is thrown straight up, where is its acceleration the<br> greatest
    15·1 answer
  • The Grand Canyon is more than 400 km long and in some places almost 2 km deep. Which model best represents the main process that
    13·1 answer
  • Physics 10
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!