As much as 90% of the matter in the universe my be unseen i.e. dark matter. There is a variety of explanations offered by many astronomers and physicists for this dark matter. It could merely be ordinary material such as ultra-faint stars, cold gas, large or small black holes or dust scattered around the universe, all of which emit or reflect too little radiation for our instruments to detect. It could also consist of exotic, unfamiliar particles that we have not figured out how to observe.
Answer:
45
Explanation:
because you divide volume and mass
Answer:
Correct answer: The fourth claim
Explanation:
No claim is most accurate but if you have to choose the best from the bad one, it's fourth - Its height decreased as its motion increased.
The potential energy depends from height Ep = m g h and kinetic
energy depends besides mass from velocity (motion) Ek = m v²/ 2
God is with you!!!
P= F/A so F= p*A. You're welcome
Answer: 8.242 × 10 exp -8 N
Explanation: F = G *m* M/r^2
r = √(13-5)^² + (51-15)^² + (0-0)²
r = 8; the distance between the masses
G =6.673 × 10 -¹¹ Nm²kg-²
F = gravitational force of attraction of m(51kg) on M {1550kg)
