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
tekilochka [14]
3 years ago
7

How do you solve this ? Why is the ans C not B ?

Physics
1 answer:
melomori [17]3 years ago
4 0

Explanation:

Draw a free body diagram of the toolbox.  There are two forces:

Weight force mg pulling down,

and applied force F pulling up.

Sum of forces in the y direction:

∑F = ma

F − mg = ma

45 N − 15 N = (3 kg) a

a = 10 m/s²

The answer should be B.  It's possible the answer key has a mistake.

You might be interested in
How does an understanding of plate motion help scientists
Arte-miy333 [17]

Answer:

advance in the understanding of cellular movement

Explanation:

All organisms are formed from cells, "understanding how cells are able to interact with other cells during development helps us understand how tissues and organs are established and, consequently, how the shape arises in embryos," explains Germán Reig

6 0
3 years ago
How are mountain ecosystems different from other ecosystems?
Andreyy89

Answer:

They host three or more distinct ecosystems at different elevations.

Explanation:

I checked it, and its right.

3 0
2 years ago
A bus travels 30km in 1/2h. What is it's average speed in km/h
Vadim26 [7]
If a bus travels 30 km in 1/2 hr, then in one hr, he can travel twice the distance.
30*2=60 km

Final answer: 60 km per hr
5 0
3 years ago
Infer​ the effect of deforestation on the carrying capacity of the Amazon rainforest.
RUDIKE [14]

Answer:

More than 20% of the amazon has been destroyed, affects biodiversity.

Explanation:

  • The biggest issues that the amazon is facing is the deforestation and it involves the clearing of land areas for logging, farming, and other land-use changes.
  • Effects that are seen are droughts, floods, destruction of habitats of flora and fauna along with the valuable services of the ecosystem.
  • This leads to a decrease in the carrying capacity of the species and the decline of the essential resources that are necessary to survive.
4 0
3 years ago
PLEASE HELP ITS DUE IN 12 MINUTES
GrogVix [38]
A. Bones provide protection for organs in the body
5 0
2 years ago
Other questions:
  • PLEASE ANSWER!!!!!
    13·1 answer
  • The advantage of nuclear power include the low production of air pollution and the fact that is not produce a toxic waste materi
    9·1 answer
  • a 1430 kg car speeds up from 7.50 m/s to 11.0 m/s in 9.30 s. Ignoring friction, how much power did that require?
    15·1 answer
  • While on vacation in the tropical Bahamas, Suzy decides to try out a water jet pack. She places the jet pack on her back (like y
    5·1 answer
  • An ideal parallel - plate capacitor consists of two parallel plates of area A separated by a distance d. This capacitor is conne
    15·1 answer
  • How scientists decide if an exoplanet might be like Earth?
    5·1 answer
  • What can fall but never get hurt
    7·2 answers
  • Does mass influence how quickly an object falls?
    13·2 answers
  • A Boeing 787 is initially moving down the runway at 6.0 m/s preparing for takeoff. The pilot pulls on the throttle so that the e
    13·1 answer
  • Which of the following never cause a change in the motion of an object? A. Net forces B. Unbalanced forces O C. Balanced forces
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!