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
ollegr [7]
3 years ago
15

If a 20 kg box is accelerating upward at 8 m/s^2 , what is the magnitude of the upward force

Physics
1 answer:
shusha [124]3 years ago
7 0

Answer:

356 N

Explanation:

Newton's second law of motion describes the relationship between an object's mass and the amount of force needed to accelerate it.  

here there is a weight acting downwards on the object , yet it is accelerating  upwards shows that there is a net force upwards

Applying Newtons second law of motion upwards ,

Force  = mass *acceleration

Upward force - m*g = m *a

F_up= 20 *8 + 20 * 9.8

         = 356 N

Upward force= 160 N

You might be interested in
f the pressure of a sample of gas is doubled at constant temperature, what happens to the volume of the gas?
vaieri [72.5K]

it is halved.

p1v1=p2v2

2p1x1/2xv1=p1v1

4 0
3 years ago
Can someone please help me
guajiro [1.7K]
ANSWER:
C. Small, minimize

Hope it helps u!
5 0
3 years ago
Why is the light bulb not a closed system?
Nana76 [90]

Answer:An incandescent light bulb gives only energy of the system in the form of heat. ... The roof of a house is stable but it receives energy from the surroundings and transfers energy through it towards lower temperature side which includes no mass transfer. So, it is best considered as closed system.

Explanation:

4 0
2 years ago
A panda's coarse fur is made of cells, as is its blood, its skin, its nerves, and its brain. This is an example of which charact
Allisa [31]
<span>D.cellular organization   </span>
Cell is the fundamental unit of life. It is the component of every living organism, creature and being in the biotic environment. Thus, each of this organisms like this panda have cells, which is grouped together to form tissues, and when tissues form together they form the organs and then the organs systems and entirely, as one organism. An entire organism then is what compose species. This hierarchical structure is what every organism is totally composed of. But without the cell –these different types of cells. There would no life.



4 0
3 years ago
The genes for alpha-goblin and beta-globin are found:\
Luba_88 [7]
Actually the third one is introns, trust me I did the test 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Why is the work output of a machine never equal to the work input? A. Some work input is used to overcome friction. B. Input dis
    5·2 answers
  • An is a heterogeneous mixture in which visible particles settle
    9·1 answer
  • What is the intensity level of a sound with an intensity of 0.000127 W/m2?
    13·1 answer
  • The four terrestrial planets are so called because they ?
    12·2 answers
  • You add several drops of red food coloring to the water in a beaker without stirring. After a short time, the water has a red co
    14·1 answer
  • Muscular Endurance is the ability of a muscle to continue to perform without fatigue.
    8·1 answer
  • A green plant has_____energy
    12·1 answer
  • Calculate the east component of a resultant 32.5 m/s, 35.0° east of north.
    13·1 answer
  • While traveling along a highway, a driver slows from 27 m/s to 13 m/s in 11 seconds. What is the automobile’s acceleration?
    6·1 answer
  • Please help ! Which of the following objects has the greatest momentum?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!