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Usimov [2.4K]
3 years ago
11

What is the half-life radioactive isotope?

Physics
1 answer:
Ulleksa [173]3 years ago
7 0

Answer:

The half-life of a radioactive isotope is the time taken for half the unstable nuclei in a sample to decay.

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A weight of 30.0 N is suspended from a spring that has a force constant of 220 N/m. The system is undamped and is subjected to a
Nimfa-mama [501]

Answer:

F_0 = 393 N

Explanation:

As we know that amplitude of forced oscillation is given as

A = \frac{F_0}{ m(\omega^2 - \omega_0^2)}

here we know that natural frequency of the oscillation is given as

\omega_0 = \sqrt{\frac{k}{m}}

here mass of the object is given as

m = \frac{W}{g}

\omega_0 = \sqrt{\frac{220}{\frac{30}{9.81}}}

\omega_0 = 8.48 rad/s

angular frequency of applied force is given as

\omega = 2\pi f

\omega = 2\pi(10.5) = 65.97 rad/s

now we have

0.03 = \frac{F_0}{3.06(65.97^2 - 8.48^2)}

F_0 = 393 N

6 0
3 years ago
Which is the best example of potential energy?
svetoff [14.1K]
First one, holding a basketball in the air. Potential energy is the energy it has mostly from gravity. The further you go from the center of mass, the more energy.
8 0
3 years ago
Read 2 more answers
Newton's first law of motion is sometimes called the law of _________.
Gre4nikov [31]
Newtons first law of motion is also known as the law of inertia
3 0
4 years ago
1. A Zambeef delivery track travels 18 km north, 10 km east, and 16 km south. What is its final displacement from the origin?
VARVARA [1.3K]

Answer:

2km

Explanation:

Given data

We are told that the direction traveled are

North>>>East>>>South

Hence the displacement is defined as the distance away from the initial position is

Initial position =18km

FInal position = 16km

The displacement = 18-16= 2km

Hence the displacement is 2km

6 0
3 years ago
Who is the greek philisopher who came up with the idea that atoms exist
Mariulka [41]

Greek philosophers Leucippus and Democritus first developed the concept of the atom in the 5th century B.C.E.

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3 years ago
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