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
Maslowich
3 years ago
14

HURRY UPPPPPPPPPPPPPPPP(and don't give me incomplete answers)

Physics
1 answer:
oee [108]3 years ago
7 0

Answer:

The powerful mechanical advantage of a pulley is in using many pulleys at once. Combining multiple pulleys decreases the amount of force necessary to move an object by increasing the amount of rope used to raise the object. The amount of rope can be found by rope = original amount of rope x the number of pulleys

Explanation:

You might be interested in
The glow of fluorescent light bulb or a neon sign is caused by which state of matter
Marrrta [24]
If im not mistaken it is plasma
5 0
4 years ago
How much energy is transferred electrically by a 2000 W cooker in half an hour?
Kryger [21]

Responder:

E = 1440 kJ

Explicación:

Se da que,

La potencia de un horno de cocción es de 800 W

El voltaje al que se opera es de 230 V

Tiempo, t = 30 minutos = 1800 segundos

Necesitamos encontrar la energía eléctrica utilizada por el horno de cocción. El producto de la potencia y el tiempo es igual a la energía consumida. Entonces,

5 0
3 years ago
Read 2 more answers
A 16.9 kg monkey is swinging on a 5.32 m long vine. It starts at rest, with the vine at a 43.0° angle. How fast is the monkey mo
NemiM [27]

Answer:

v = 5.7554 m/s

Explanation:

First of all we need to know if the angle of the vine is measured in the horizontal or vertical.

To do this easier, let's assume the angle is measured with the horizontal. In this case, the innitial height of the monkey will be:

h₀ = h sinα

h₀ = 5.32 sin43° = 3.6282 m

As the monkey is dropping from the innitial point which is the suspension point, is also dropping from 5.32. Then the actual height of the monkey will be:

Δh = 5.32 - 3.63 = 1.69 m

In order to calculate the speed of the monkey we need to understand that the monkey has a potential energy. This energy, because of the gravity, is converted in kinetic energy, and the value will be the same. Therefore we can say that:

Ep = Ek

From here, we can calculate the speed of the monkey.

Ep = mgΔH

Ek = 1/2 mv²

The potential energy is:

Ep = 16.9 * 9.8 * 1.69 = 279.9

Now with the kinetic energy:

1/2 * (16.9) * v² = 279.9

v² = (279.9) * 2 / 16.9

v² = 33.12

v = √33.12

<h2>v = 5.7554 m/s</h2>

Hope this helps

3 0
3 years ago
How to show your work for 0.04% of 245
Harlamova29_29 [7]
0.04*245 is the work
7 0
3 years ago
Read 2 more answers
When physical activity is a set plan or program for all ages, usually performed by a group through a local recreational unit, it
Alexeev081 [22]

Answer:

C. Sports activity

Explanation:

A sport activity is a form of competitive physical activity in forms of games. They are normally organized for individuals to participate  with the aim of improving physical abilities and skills, bring enjoyment to participants and act as a form of entertainment.

8 0
3 years ago
Other questions:
  • Consider a box weight 2700 newtons resting on the ground. If the area of the box touching the ground is 1.5 square meters, what
    13·1 answer
  • Explain a situation in which you can accelerate even though your speed doesn’t change.
    14·1 answer
  • Discuss how the gradualist model of evolution differs from the punctuated equilibrium model of evolution
    14·1 answer
  • What determines velocity rather than speed??
    13·1 answer
  • Choose the law that BEST explains the example:
    6·2 answers
  • Two objects that are not initially in thermal equilibrium are placed in close contact. After a while, the temperature of the cod
    9·1 answer
  • A constant net force acts on an object. Describe the motion of the object.
    6·1 answer
  • Find the total power developed in the circuit. Express your answer using three significant figures and include the appropriate u
    10·1 answer
  • Complete this sentence. The electrical conductivity of a sample will ____________ when the size of the sample increases.
    15·1 answer
  • A 4.4 nC charge exerts a repulsive force of 36 mN on a second charge which is located
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!