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
bonufazy [111]
3 years ago
10

A 20-N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is?

Physics
1 answer:
Irina18 [472]3 years ago
8 0

16-N because 20-4=16

You might be interested in
A 1300 kg car starts at rest and rolls down a hill from a height of 10.0 m. It then moves across a
Makovka662 [10]

Answer:

0.51 m

Explanation:

Using the principle of conservation of energy, change in potential energy equals to the change in kinetic energy of the spring.

Kinetic energy, KE=½kx²

Where k is spring constant and x is the compression of spring

Potential energy, PE=mgh

Where g is acceleration due to gravity, h is height and m is mass

Equating KE=PE

mgh=½kx²

Making x the subject of formula

x=\sqrt {\frac {2mgh}{k}}

Substituting 9.81 m/s² for g, 1300 kg for m, 10m for h and 1000000 for k then

x=\sqrt \frac {2*1300*9.81*10}{1000000}=0.50503465227646m\\x\approx 0.51 m

5 0
3 years ago
How many nanoseconds does it take light to travel 3.50 ft in vacuum?
Fiesta28 [93]
Answer:3.56 nanosecond

In this case, you are asked the time and given the light distance(3.5ft)
To answer this question you would need to know the velocity of light. Speed of light is <span>299792458m/s. Then the calculation would be:

time= distance/speed
time= 3.5 ft / (</span>299792458m/s) x 0.3048 meter/ 1 ft=  3.56 10^{-9} second or 3.56 nanosecond
6 0
3 years ago
A wire delivers 12.0 C of charge in 4.0 s. What is the current in the wire? 3.0 A 8.0 A 16 A 48 A
const2013 [10]
3.0 A i got it off Quizlet and there usually always right lol can't submit tho my answers to short.... Dot dot dot
5 0
3 years ago
Read 2 more answers
A _______ satellite records reflected wavelengths from Earth's surface.
Oksana_A [137]
<span>It is LandSat, a NASA based satelite that records, on a daily basis, multiple reflected wavelengths from the Earth's surface. The satelite measures reflection from both land and ocean upon the Earth. The system is utilised by scientists an policy makers around the world. </span>
3 0
3 years ago
Read 2 more answers
Please help me ; - ;
Irina18 [472]

Answer:

2 = C

3 = B

1 = A

Explanation:

5 0
3 years ago
Other questions:
  • Air at 1 atm and 20°C is flowing over the top surface of a 0.2 m 3 0.5 m-thin metal foil. The air stream velocity is 100 m/s and
    9·1 answer
  • Does wax paper, aluminum foil, or plastic wrap cause more friction
    7·2 answers
  • Find the kinetic energy of a ball with a mass of 0.06 kg moving at 50 m/s
    13·1 answer
  • I NEED a LOT of help PLEASE!
    10·2 answers
  • A car is traveling on a straight, level road under wintry conditions. Seeing a patch of ice ahead of her, the driver of the car
    15·1 answer
  • What is the sl unit of pressure?
    12·1 answer
  • Can someone please help a struggling physics student?
    15·1 answer
  • An echo is a reflection of sound against another surface. Suppose you are standing on one side of a canyon and you
    8·1 answer
  • When a ball bounces back when you throw it at a wall, what occurs?
    11·2 answers
  • How did planck find the correct curve for the specturm of light emitted by a hot obkect?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!