Physics, 01.08.2019 01:50 allenpaietonp9v8sv

What types of nuclear forces determine the rate at which a radioactive material decays? select one: a. strong and weak b. negative and positive c. attractive and repulsive d. charged and uncharged

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Answer from: abbypark0804

a. strong and weak

Explanation:

There 4 fundamental forces in nature:

1. Gravity - it is an attractive force that is exerted between objects with mass

2. Electromagnetic force - it can be an attractive or repulsive force, and it is exerted between objects with electric charge

3. Strong nuclear force - it is a force that acts between particles within the nucleus of an atom, holding protons and neutrons together

4. Weak nuclear force - it is a force that acts on very short scales, and it is responsible for the decay of some particles

While gravity and the electromagnetic force play no role in the radioactive decay of the substances, either the strong or the weak nuclear force can be involved in the decay of a particle ( in fact, a particle can decay due to the weak interaction or due to the strong interaction), so the correct answer is:

a. strong and weak

Answer from: Quest

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm. the wire diameter is d = 0.9 mm. the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2) in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

Answer from: Quest

cell differentiation is how generic embryonic cells become specialized cells. this occurs through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.

explanation:

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What types of nuclear forces determine the rate at which a radioactive material decays? select one:...