Natasha measures the masses of three objects and records her results in the table. Object Mass
Sphere
Cube
400 g
378 g
4129
Pyramid
What should Natasha do next to determine the densities of the objects?
She should measure the volume of each object.
She should mea[ure the temperature of each object.
She should measure the circumference of each object
O She should measure the surface area of each object.

answer is a

explanation:

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

(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