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3 years ago

Before the fission process takes place, lead-207 is bombarded with neutrons, it can change into

Physics

2 answers:

Oduvanchick [21]3 years ago

8 0

Lead-207 can change into Lead-208.

When Lead-207 is bombarded with neutrons, the atom acquires the neutron. Adding a neutron only changes the mass number of the atom. This does not involve change in the identity of the atom. So, Lead-207 can change into Lead-208 without change in its chemical properties.

Svetach [21]3 years ago

6 0

Lead-208, because I guessed and that was the answer.

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The kinetic energy and gravitational potential energy changes during its movement from ground to the top height.

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3 years ago

A box full of charged plastic balls sits on a table. The electric force exerted on a ball near one upper corner of the box has c

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We have that the values for F north, F east, F up are

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From the Question we are told that

electric force $F_1 = 1.2 x 10^{-3} N(N)$

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Generally the equation for the F north is mathematically given as

$F_N=\frac{F_1}{q_1}\\\\F_N=\frac{ 1.2 * 10^{-3} )}{110}$

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3 years ago

Three examples in which velocity is the main factor determining an object's momentum

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To be honest I’m not sure you might want to ask Newton as he’s an expert best of luck

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3 years ago

An ore car of mass 39000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 19 m lower vert

cupoosta [38]

Answer:

The compression in the spring is 5.88 meters.

Explanation:

Given that,

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Height of the car, h = 19 m

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We need to find the compression in the spring in stopping the ore car. It can be done by balancing loss in gravitational potential energy and the increase in elastic energy. So,

$mgh=\dfrac{1}{2}kx^2$

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$x=\sqrt{\dfrac{2mgh}{k}} \\\\x=\sqrt{\dfrac{2\times 39000\times 19\times 9.8}{4.2\times 10^5}} \\\\x=5.88\ m$

So, the compression in the spring is 5.88 meters.

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3 years ago