4 years ago

Wha is amplitde in sound

Physics

1 answer:

NemiM [27]4 years ago

7 0

Answer:

The number of molecules displaced in a vibration makes the amplitude of a sound.

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The force between two objects, each of charge +Q is measured as +F when the objects are separated a distance d apart. If the cha

dybincka [34]

Answer:

$F'=4F$

Explanation:

According to Coulomb's law, the magnitude of the force (F) between two objects with the same charge(+Q), separated a distance (d) apart, is defined as:

$F=\frac{kQ^2}{d^2}$

Here k is the Coulomb constant. The charge on each object is doubled, that is $Q'=2Q$ :

$F'=\frac{kQ'^2}{d^2}\\F'=\frac{k(2Q)^2}{d^2}\\F'=4\frac{kQ^2}{d^2}\\F'=4F$

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4 years ago

A car is traveling on a straight, level road under wintry conditions. Seeing a patch of ice ahead of her, the driver of the car

dangina [55]

Her magnitude of deceleration on the ice would be 15.126m/s

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3 years ago

The transfer of energy by electromagnetic

chubhunter [2.5K]

Either convection or thermal energy

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3 years ago

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A small grinding wheel has a moment of inertia of 4.0*10-5kgm2. What net torque must be applied to the wheel for its angular acc

kvv77 [185]

Hi there!

We can use the rotational equivalent of Newton's Second Law:

$\huge\boxed{\Sigma \tau = I \alpha}$

Στ = Net Torque (Nm)

I = Moment of inertia (kgm²)

α = Angular acceleration (rad/sec²)

We can plug in the given values to solve.

$\Sigma \tau = (4 * 10^{-5})(150) = \boxed{0.006 Nm}$

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3 years ago

Does a can opener make work easier by increasing force, increasing distance, or changing direction?

ivann1987 [24]

A can opener makes work easier by increasing force.

Explanation

Technically a can opener is a simple lever that increases the force with which we remove the cap of the can. Levers are rod shaped objects with fulcrum at one end and the length of the lever has a positive impact on the force.

considering the equation

work=force*distance

indicates that increasing the length of the lever/can opener increases the work done by it.

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4 years ago