Answer:
The value of final velocity of the first hockey puck 2.3
Explanation:
Mass of hockey puck = m
Initial velocity
From conservation of momentum principal
4.5 m = m + m × × 3.5
= 1.5
0 = m + m × × 3.5
= - 1.75
Now final velocity of first puck
Put the values in above formula we get
2.3
This is the value of final velocity of the first hockey puck.
Answer:
Explanation:
We are given that
Mass of boat=m=214 kg
F=1310 N
We have to find the acceleration of the boat.
Net force=mg-F=mg-1310
Where
We know that
Acceleration ,a
Using the formula
Hence, the acceleration of the boat=
The answer is B. the kuiper belt is between pluto and neptune but more closer to pluto
The density of hematite ore is <u>4.78 g/cm³</u>.
Let the mass of the ore be m₁ , the volume of the flask <em>V</em>, total mass of water and ore M, mass of water be m₂, density of ore ρ₁ and the density of water be ρ₂.
Density of a substance is defined as the mass per unit volume.
The mass of water in the flask is given by,
Calculate the volume V₂ of the water in the flask.
Calculate the volume V₁occupied by the ore in the flask.
1 ml is equivalent to 1 cm³.
Calculate the density of the ore.
The density of the hematite ore is found to be 4.78 g/.cm³
48 years, 1912-1960, July 4, the 50-star flag makes its debut in Philadelphia, Pennsylvania. A 50th star was added to the American flag in honor of Hawaii's August 21, 1959 admission into the Union