Answer:
Empty bottle, Balloon, Waterbottle Full Then rock
Explanation:
Answer:
50473.45
Explanation:
(6.67×10^-11)(1.10×10^18)/(x)^2=0.0288.
Answer: fourth option 1.2 × 10³ joules
Explanation:
1) kinetic energy is calculated as the half of the product of the mass times the square of the speed:
=> KE = (1/2) m × (v)²
2) you know the mass after the collision and the speed so you have all the data fo find the numerical value of the expression for KE:
m = m1 + m2 = 200 kg + 250 kg = 450 kg
KE = (1/2) × 450 kg × (2.3 m/s)² = 1,190.25 joules ≈ 1200 joules = 1.2 × 10³ joules, which is the last option of the list.
When light hits a rough surface it is most likely to reflect because when light hits an object it reflects in lots of different directions and that happens when the surface is rough
