Which of the following is the si unit used to measure temperature? a. kilogram b. liter c. meter d. kelvin select the best answer from the choices provided a b c d

The answer is C.

Meter

The correct answer is Option d.

Explanation:

Temperature is defined as measure of warmth and coldness of a substance in reference to some standard value. It is expressed in Kelvins.

Kilogram is the S.I. uni of Mass.

Liter is the S.I. unit of Volume.

Meter is the S.I. unit of Length.

Temperature can be expressed in degree Celsius and degree Fahrenheit.

Hence, the correct answer is Option d.

58750.08068 is the answer i think

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied