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
mariarad [96]
3 years ago
7

8. An effort force of 15 Newtons is applied to an ideal pulley system to lift up a 16 Newton object. If the effort force is exer

ted through a distance of 6 meters, calculate the distance that the object is raised above its initial position.​
Physics
1 answer:
Sonbull [250]3 years ago
3 0

Answer:

the distance that the object is raised above its initial position is 5.625 m.​

Explanation:

Given;

applied effort, E = 15 N

load lifted by the ideal pulley system, L = 16 N

distance moved by the effort, d₁ = 6 m

let the distance moved by the object = d₂

For an ideal machine, the mechanical advantage is equal to the velocity ratio of the machine.

M.A = V.R

M.A = \frac{Load}{Effort} = \frac{L}{E} \\\\V.R = \frac{disatnce \ moved \  by \ the \ effort}{disatnce \ moved \  by \ the \ load} = \frac{d_1}{d_2} \\\\For \ ideal \ machine; \ M.A = V.R\\\\\frac{L}{E} = \frac{d_1}{d_2} \\\\d_2 = \frac{E \times d_1}{L} \\\\d_2 = \frac{15 \times 6}{16} \\\\d_2 = 5.625 \ m

Therefore, the distance that the object is raised above its initial position is 5.625 m.​

You might be interested in
A source for conducting formal research would include_
Wittaler [7]
C. written reports !
5 0
3 years ago
Read 2 more answers
Select the correct answer.
natali 33 [55]

The wave speed completely depends on the characteristics and properties of the medium  . . . physical properties for mechanical waves, electrical properties for electromagnedtic waves.

So if you want to change the speed of a wave, you have to change the medium . . . shoot it through some different kind of stuff. <em>(B) </em>

4 0
3 years ago
Read 2 more answers
If a car has a kinetic energy of 40000 J and is moving at a velocity of 25 m/s, what is the mass of the car? KE=1/2mv
ohaa [14]

Answer:

3200 Kg

Explanation:

Just apply the formula:

40.000 = 1/2 . m . 25

80.000 = 25m

m = 80.000/25

m = 3200 Kg

7 0
3 years ago
One of the factors that determines the ? of a capacitor is the frequency measured in hertz.
ycow [4]

Answer:

Reactance

Explanation:

In an AC circuit, the capacitive reactance of a capacitor is given by:

X_C = \frac{1}{2 \pi f C}

where

f is the frequency of the AC current

C is the capacitance of the capacitor

The reactance of the capacitor tells somehow the "resistance" of the capacitor to the passage of current through it. In fact:

- When the frequency of the AC current is zero (this means, we are in regime of DC current), the reactance becomes infinite, and this is true because the capacitor does not let the current pass through it)

- When the frequency of the AC current tends to infinite, the reactance becomes zero, and this is true because in this case the current changes direction so fast that the capacitor has not enough time to "block" the current, so the current almost no feels the presence of the capacitor.

7 0
4 years ago
Risks are only in a persons mind would know from facts to back them up
lyudmila [28]
Risks are only in a persons 
8 0
3 years ago
Other questions:
  • A panel of solar cells has an efficiency of 0.15. The total power input to the panel of solar cells is 3.2 kW. Calculate the use
    9·1 answer
  • The rate at which light energy is radiated from a source is measured in which of the following units?
    14·2 answers
  • What is the climate of northern Alaska?
    6·2 answers
  • As a crate slides down an inclined rough surface, its total mechanical energy A) increases, B) might decrease or increase depend
    11·1 answer
  • You will be helping Galileo perform the experiment to determine if objects with different mass fall at the same, or different, r
    7·1 answer
  • The sketch below shows some of the insides of a stereo speaker. Running current through the wire, which is wrapped around the ba
    15·2 answers
  • The speed of a car decreases uniformly as it passes a curve point where normal component of acceleration is 4 ft/sec2. If the ca
    11·1 answer
  • Why does calcium chloride have a greater affect on colligative properties verses sodium
    8·1 answer
  • Suppose the sphere is positively charged. Is it attracted to, repelled by, or not affected by the magnet?.
    8·1 answer
  • How long does it take the baton to complete one spin
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!