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3 years ago

Gravitational force is reduced bybetween objects.

1 answer:

6 0

Answer: When the distance between the two object triples then the gravitational force is reduced by one ninth (1/9)th between objects. Gravitational force is inversely proportional to the square of the distance of two object.

Explanation: Therefore, the gravitational force is reduced by the square of the distance between objects.

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3 years ago

An x-ray photon is scattered by an originally stationary electron. how does the frequency of the scattered photon compare relati

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3 years ago

Two identical 0.200kg mass are pressed against opposite ends of a light spring of force constant 1.75N/cm compressing the spring

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This type of a problem can be solved by considering energy transformations. Initially, the spring is compressed, thus having stored something called an elastic potential energy. This energy is proportional to the square of the spring displacement d from its normal (neutral position) and the spring constant k:

$E_p=\frac{1}{2}kd^2= \frac{1}{2}175\frac{N}{m}\cdot 0.37^2m^2=11.98J$

So, this spring is storing almost 12 Joules of potential energy. This energy is ready to be transformed into the kinetic energy when the masses are released. There are two 0.2kg masses that will be moving away from each other, their total kinetic energy after the release equaling the elastic energy prior to the release (no losses, since there is no friction to be reckoned with).

The kinetic energy of a mass m moving with a velocity v is given by:

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And we know that the energies are conserved, so the two kinetic energies will equal the elastic potential one:

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From this we can determine the speed of the mass:

$E_p =mv^2\implies v=\pm \sqrt{\frac{E_p}{m}}=\pm\sqrt{\frac{11.98J}{0.2kg}}=\pm 7.74\frac{m}{s}$

The speed will be 7.74m/s in in one direction (+), and same magnitude in the opposite direction (-).

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3 years ago

A person who normally weighs 580 N is riding in an elevator that is moving upward, but slowing down at a steady rate. If this pe

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Answer:

M au = Fs - M g au = upwards acceleration; Fs = scale reading

Fs = M (au + g) scalar quantities where g is positive downwards and au is positive upwards - Fs is the net force acting on the person

If the acceleration is zero Fs = M g and the scale reads the persons weight

If the elevator is decelerating then au is negative and the scale reading Fs = (g - au) M and the scale reading is less than the weight of the person

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2 years ago

This force involves the attraction between objects with mass. (2 points) i need it asap

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Answer:

Gravitational Mass

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3 years ago

Gravitational force is reduced bybetween objects.​

Gravitational force is reduced bybetween objects.