Generate Quiz 68AF55091A804

Gravity will cause the two spheres to accelerate equally as they approach the ground. Near the Earth’s surface, the acceleration caused by gravity is roughly 9.8 m/s^2. Regardless of an object’s mass, it is the same (assuming negligible air resistance). The same gravitational force acts on both spheres because they are dropped at the same time. Newton’s second law of motion states that an object’s force is equal to its mass times its acceleration (F = m*a). Their masses have no effect on the speed of the two spheres as they approach the ground because they both feel the same gravitational pull and accelerate equally as a result of gravity.

A radioactive element’s half-life is the amount of time it takes for a sample to decay by 50% of its initial value.

When asked how long it takes for 75% of the original amount to decompose,

For the first half-life, 50% of uranium-238 decays and 50% does not.

The remaining 50% of undecayed Uranium-238 decays to half for the second half life, meaning that 25% decays and 25% stays undecayed.

Uranium decays at a rate of 55% + 25% in two half-lives.

2 Half Life is the total amount of time needed to decompose 75% of the original amount.

= 2 x (4.5×109)

= 9 x 109 years

Because of the series connection of the resistors, the total resistance between x and y would be R+R+R=3R.

An atom of hydrogen has one proton and one electron due to its composition. A hadron, which is composed of three quarks and can have one of six flavors, is a proton. Because of the quark composition, the particle’s total charge is preserved.

The quark flavors found in a proton are as follows: You u d

The sum of the flavor charges is +1 (2/3 + 2/3 – 1/3).

A hydrogen atom is therefore composed of three quarks. Since the electron is a lepton rather than a hadron, it lacks quarks.

Any point on the circumference of a circle with radius R (R = 100 meters) is 100 meters from the origin, (O), assuming that O is the circle’s center and that AB is located along its perimeter.

The final point’s distance from the origin on a straight line is all that counts for displacement.

The “radius” of a circle is the distance from its origin at any point on its circumference.

The displacement is 100 meters.

Since displacement is a vector quantity, the 100 meters should have a direction.

Every action has an equal and opposite reaction, according to Newton’s third law of motion. Therefore, a boatman must push the water backwards in order to move the boat forward in the water. The boatman exerts a force on the water in a backward direction by pushing it. The boat moves ahead when the water exerts the same amount of force in a forward direction.