Physics, 01.10.2019 18:10 shenzhen10

The four balls have different masses and speeds.
ball a: mass of 0.7 kg, speed of 15.0 m/s.
ball b: mass of 1.2 kg, speed of 5.5 m/s.
ball c: mass of 2.5 kg, speed of 5.0 m/s.
ball d: mass of 5.0 kg, speed of 1.5 m/s.
rank them in terms of momentum, from greatest to least.

the balls in the image above have different masses and speeds. rank them in terms of momentum, from greatest to least.

c, a, d, b
a, b, c, d
d, c, b, a
b, d, a, c

Answers: 1

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Answer from: lilzaya510

The balls whose velocity and mass is given and momentum of the balls are ranked as C, A, D, B from greatest to least.

Explanation:

Momentum is the quantity of physics. Momentum is the product of mass and velocity of the object. Rate of change in momentum is called as force, change in momentum is called impulse. The units of momentum is kg.m/s

Momentum is represented as P which is given by the formula:

$P = m \times a$

Now to calculate the momentums of balls in which speed and mass was given,

Take Ball A:

Mass = m_A = 0.7 kg, Speed = a_A = 15.0 m/s

Momentum (P_A) = 0.7 $\times$ 15.0

Therefore,

P_A = 10.5 kg.m/s

Momentum of ball A is 10.5 kg.m/s

Take Ball B:

Mass = m_B = 1.2 kg, Speed = a_B = 5.5 m/s

Momentum (P_B) = 1.2 \times 5.5

Therefore,

P_B = 6.6 kg.m/s

Momentum of ball B is 6.6 kg.m/s

Take Ball C:

Mass = m_C = 2.5 kg, Speed = a_C = 5.0 m/s.

Momentum (P_C) = 2.5 \times 5

Therefore,

P_C = 12.5 kg.m/s

Momentum of ball C is 12.5 kg.m/s

Take Ball D:

Mass = m_D = 5.0 kg, Speed = a_D = 1.5 m/s.

Momentum (P_D) = 5.0 $\times$ 1.5

Therefore,

P_D = 7.5 kg.m/s

Momentum of ball D is 7.5 kg.m/s

On comparing the values of momentum,

CADB

Answer from: Quest

568.98

explanation:

its math

Answer from: Quest

An atom (ours, not carroll's) consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6 nm. * if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

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The four balls have different masses and speeds.
ball a: mass of 0.7 kg, speed of 15.0 m/s. <...

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