Matter is radioactive and decays over time
Henri Becquerel discovered that <span>uranium salts spontaneously emit a penetrating radiation that can be registered on a photographic plate.
hope this helps</span>
Answer:
To solve for distance use the formula for distance d = st, or distance equals speed times time. Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t.
Explanation:
Answer:
Mass of a body is define as the total quantity of matter contained in it .
Density is the mass per unit volume in any object .
A physical properties is an any property that is measurable , whose value describe a state of a physical system
The precision of the measuring instruments will be 2.5%.
<h3>What is precision?</h3>
It should be noted that precision simply means how close a test result will be when it's repeated.
In this case, the precision of the measuring instruments will be:
= (2 - 1.95)/2.
= 0.05/2
= 2.5%
Therefore, the the precision of the measuring instruments will be 2.5%.
Learn more about precision on:
brainly.com/question/5792909
_dThe radius of curvature of a subatomic particle under a magnetic field is given by the following formula:
Where:
We can determine the quotient between the velocity and the charge of the deuteron particle from the formula. First, we divide both sides by the mass:
Now, we multiply both sides by the magnetic field "B":
Since the charge of the deuterion is the same as the charge of the proton and the velocity we are considering are the same this means that the quotient between velocity and charge is the same for both particles. Therefore, we can apply the formula for the radius again, this time for the proton:
And substitute the quotient between velocity and charge:
Now, we cancel out the magnetic field:
Now, we substitute the values:
Solving the operations:
Therefore, the radius is 19.3 cm.
