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umka21 [38]
3 years ago
12

A machine has mechanical advantage 2 , what does it mean ?​

Physics
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

The advantage gained by the use of a mechanism in transmitting force specifically : the ratio of the force that performs the useful work of a machine to the force that is applied to the machine.

Explanation:

0.5 times greater than the input force.

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Forces are vectors. They cancel each other when in opposite directions. Use the equation F=GMm/r^2 and find the difference between the two forces since they are directly opposing each other.
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A shearing of 50N is applied to an aluminum rod with a length of 10m a cross sectional area of 1.0×10-5 and a shear modulus of 2
slega [8]

Answer:

0.002 m or 2 mm

Explanation:

Given that:

Force, F = 50N

Area = 1 * 10^-5

Length, L = 10m

Shear modulus, = 2.5 * 10^10

Using the relation ;

D = (50 ÷ 1*10^-5) ÷ (2.5 * 10^10 ÷ 10)

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D = 2 * 10^-3

D = 0.002 m

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7 0
3 years ago
A wavelength approaching land at 25 m/s is 4.0 x 102 m. What is its period?
kherson [118]

Answer:

16 s

Explanation:

The frequency of a wave is the number of oscillations of the wave per second. It is given by:

f=\frac{v}{\lambda}

where

v is the wave speed

\lambda is the wavelength

For the wave in this problem we have

v = 25 m/s

\lambda=4.0\cdot 10^2 m=400 m

So the frequency is

f=\frac{25}{400}=0.0625 Hz

The period of a wave is the time taken for one complete oscillation, and it is equal to the reciprocal of the frequency:

T=\frac{1}{f}

So the period of this wave is:

T=\frac{1}{0.0625}=16 s

4 0
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Nataly [62]

Answer:

B.

Explanation:

Density = mass / volume

= 0.01/0.05

= 0.2 kg/m^3.

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2 years ago
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Your answer is hot dry waether
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3 years ago
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