What machine actually reduces the amount of force exerted because it acts over a greater distance?

Physics

2 answers:

Vikentia [17]4 years ago

8 0

bottle opener is the correct answer

vredina [299]4 years ago

3 0

The bottle opener does that. So do levers, pulleys, inclined planes, and some corkscrews.

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A bicycle wheel of radius 0.2 m can rotate freely about a fixed axis. A constant force of 3 N is applied tangentially to the whe

GrogVix [38]

Answer:

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3 years ago

What is the speed of a transverse wave in a rope of length 2.00 m and mass 60.0 g under a tension of 500 n?

drek231 [11]

The formula we can use in this case would be:

v = sqrt (T / (m / l))

Where,

v = is the velocity of the transverse wave = unknown (?)

T = is the tension on the rope = 500 N

m = is the mass of the rope = 60.0 g = 0.06 kg

l = is the length of the rope = 2.00 m

Substituting the given values into the equation to search for the speed v:
v = sqrt (500 N/(0.06 kg /2 m))
v = sqrt (500 * 2 / 0.06)
v = sqrt (16,666.67)
v = 129.10 m/s

7 0

3 years ago

Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring consta

Zanzabum

Answer:

$k_2=920\ N/m$

Explanation:

Given that,

The spring constant of spring 1, $k_1=230\ N/m$

The motion of the object on spring 1 has twice the amplitude as the motion of the object on spring 2, $A_1=2A_2$

As the magnitude of the maximum velocity is the same in each case, it means the maximum kinetic energy is same in each case. In other words, the total energy is same.

$\dfrac{1}{2}k_1A_1^2=\dfrac{1}{2}k_2A_2^2$