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3 years ago

Why might compound gear trains be better than two gears alone?

Physics

1 answer:

mina [271]3 years ago

4 0

Answer:

the answer is there is more separation for the vitality to exchange; with just two apparatuses, all the vitality is applied on a shorter separation.

Explanation:

Work done and vitality moved are estimated in joules (J). The work done on a protest can be figured if the power and separation moved are known. An adjustment in energy happens when a power is connected to a question that is moving or can move.Pulleys are ground-breaking straightforward machines. They can alter the course of a power, which can make it significantly simpler for us to move something. On the off chance that we need to lift a protest that gauges 10 kilograms one meter high, we can lift it straight up or we can utilize a pulley, so we can pull down toward one side to lift the question up.

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When asked how to create an electromagnet the best answer would be?

Ann [662]

Take wire and a nail strip 2 in of wire then wrap it around a nail

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3 years ago

A sample of iron has a volume of 10.0 mL. The density of iron is 7.87 g/mL. Which is the correct expression to calculate the mas

pantera1 [17]

Answer:

a. 10.0 mL x (7.87 g / 1 mL)

Explanation:

Mass is density times volume. Therefore:

m = 10.0 mL x (7.87 g / 1 mL)

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3 years ago

A cord is wrapped around the rim of a solid uniform wheel 0.280m in radius and of mass 8.80kg. A steady horizontal pull of 32N t

Grace [21]

Answer: $25.97 rad/s^2$

Explanation:

Given

radius of wheel $r=0.28 m$

mass of wheel $m=8.80 kg$

Force $F=32 N$

Moment of Inertia of solid wheel $I=\frac{mr^2}{2}$

$I=\frac{8.8\times 0.28^2}{2}$

$I=0.344 kg-m^2$

Torque is given by

$\tau =F\times r=I\times \alpha$

$32\times 0.28=0.344\times \alpha$

$\alpha =25.97 rad/s^2$

Force on the axle is 32 N since there is no linear acceleration of the system

using Third law F=32 N

Torque of the axle applied to the wheel is zero because force of axle imparted at the center of axle

3 0

3 years ago

How many mlb teams are there

dimulka [17.4K]

There are 30 MLB teams currently in America.

7 0

3 years ago

Read 2 more answers

An 8.00-kg point mass and a 12.0-kg point mass are held in place 50.0 cm apart. A particle of mass m is released from a point be

9966 [12]

Answer:

Acceleration of the particle is 4.45 m/s² and acceleration direction is towards the 8 kg point mass.

Explanation:

Let m₁ be 8 kg point mass and m₂ be 12 kg point mass and take direction along m₁ mass as positive x-axis. The separation between twp point masses is 50 cm. According to the problem, a particle of mass m is held between the two point masses m₁ and m₂.

Distance between m₁ and m, r₁ = 20 cm = 0.2 m

Distance between m₂ and m, r₂ = (50 - 20) cm =30 cm = 0.3 m

The particle of mass m experiences an attractive gravitational force due to both the point masses. Thus, the net force on the particle of mass m is :

F = F₁ + F₂

F₁ is acting along the positive x axis and F₂ is acting along the negative x axis.

$F = \frac{Gm_{1}m }{r_{1} ^{2} } - \frac{Gm_{2}m }{r_{2} ^{2} }$

Substitute the values of G, m₁, m₂, r₁ and r₂ in the above equation.

$F = \frac{6.67\times10^{-11} \times8m }{0.2 ^{2} } - \frac{6.67\times10^{-11}\times12m }{0.3^{2} }$

F = 4.45m N/kg

Acceleration of the particle = $\frac{F}{m}$ = 4.45 m/s²

The direction of acceleration of the particle is towards the 8 kg point mass.

8 0

4 years ago