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
Pavlova-9 [17]
2 years ago
9

Um caminhão de entregas transporta produtos de tamanho e peso elevados, o que requer o uso de máquina simples para facilitar a d

escarga (observe a figura abaixo).
Que máquina simples é representada por essa figura?

(A) Roldanas.

(B) Alavancas.

(C) Rodas e eixos.

(D) Plano inclinado.

Physics
1 answer:
Korvikt [17]2 years ago
8 0
Deez dee dee de de deez Brutus
You might be interested in
An electron has ___________​
Sauron [17]

Answer:

An electron has a negative electric charge.

3 0
3 years ago
Read 2 more answers
What would be the final temperature if you mixed a liter of 40C water with 2 liters of 20C water?
riadik2000 [5.3K]

Answer:

I found  

33 ∘ C

Explanation:

i hope this helps :)

5 0
3 years ago
A paintball’s mass is 0.0032kg. A typical paintball strikes a target moving at 85.3 m/s.
vekshin1

Answer:

A)  If the paintball stops completely the magnitude of the change in the paintball’s momentum is  p=0.273kg*m/s

B) If the paintball bounces off its target and afterward moves in the opposite direction with the same speed, the change in the paintball’s momentum is  p=0.546kg*m/s

C) A paintball bouncing off your skin in the opposite direction with the same speed hurts more than a paintball exploding upon your skin because of the strength exerted is twice than if it explodes.

Explanation:

Hi

A) We use the formula of momentum p=mv, so we have p=0.0032kg*85.3m/s=0.273kg*m/s

B) We use the same formula above, then due we have a change of direction at the same speed, therefore the change in the momentum is the double so

p=2*0.0032kg*85.3m/s=0.546kg*m/s.

C) The average strength of the force an object exerts during impact is determined by the amount the object’s momentum changes. therefore

F=\frac{\Delta p}{\Delta t}, as we don't have any data about the impact time but we know momentum is twice, time does no matter and strength is twice too.

4 0
3 years ago
Explain why ventilation is very important if there is risk of exposure to random gas in your home school
bonufazy [111]
Ventilation is very important because it helps remove the gas form people’s homes and schools and it redirects the random gas outside so it is less likely to hurt people
3 0
3 years ago
Please need help on this
neonofarm [45]

Answer:

A.

Explanation:

Geothermal energy is heat driven within the sub-surface of the earth. Water and/or steam carry the geothermal energy to the earth surface.

6 0
3 years ago
Other questions:
  • Explain in your own words the interaction between the electric and magnetic fields that make up a light wave.
    6·1 answer
  • Describe two ways in which heat is transported in the biosphere
    6·1 answer
  • Which statements describe how a machine can help make work easier? Select two options.
    9·1 answer
  • Two very quick questions!!
    12·2 answers
  • Which of the following activities would be fueled by adenosine triphosphate (ATP) and the phosphagen system?A. 400-meter sprintB
    8·1 answer
  • What are the concepts of dynamically continuous innovation and discontinuous innovation? Can you share examples to illustrate th
    7·1 answer
  • Question is in the picture :,)
    5·1 answer
  • Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.20×106 N , one at an angle 15.0 ∘ west of north,
    6·1 answer
  • What feature is similar to all organisms
    5·2 answers
  • Select the correct answer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!