Answer:
1] 8500000 = <u>8.5 × 10⁶</u>
2] .000072 = <u>7.2 × 10⁻⁵</u>
3] 5.3 × 10⁴ = <u>53000</u>
4] 2.8 × 10⁻³ = <u>0.0028</u>
5] Velocity = 
V = 
<u>V = 5 m/s</u>
6] Acceleration = 
A = 
A = 
<u>A = 3 m/s²</u>
Answer:
V = 0.39 m/s
Explanation:
Given that,
Mass of hockey puck, m = 0.2 kg
Mass of goalie = 40 kg
Speed of hockey puck, v = 80 m/s
We need to find the speed with which the goalie slide on the slide. Let V be the speed. Using the conservation of momentum as follows :

So, the required speed is 0.39 m/s.
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Answer:
Rhinoceroses are odd-toed ungulates native to sub-Saharan Africa and southern Asia, though all five living species have hugely contracted in range and number due to the influence of humans. Despite their titanic, tank-like bulk, rhinos can be amazingly swift: The fastest may reach at least 50 kilometers per hour (31 mph).
Explanation:
sana makatulong
This can be solved using momentum balance, since momentum is conserved, the momentum at point 1 is equal to the momentum of point 2. momentum = mass x velocity
m1v1 = m2v2
(0.03kg x 900 m/s ) = 320(v2)
v2 = 27 / 320
v2 = 0.084 m/s is the speed of the astronaut