Answer:
0.152724283058 rad/s
Explanation:
In this system the angular momentum is conserved
Change in angular velocity is
The change in angular velocity is 0.152724283058 rad/s
Answer: The correct answer is A.
Explanation:
In magnets, there are two poles: South and north poles. Like poles repel each other. Unlike poles attract each other.
When two magnets of the opposite poles are brought together then the poles are attract each other.
When two magnets of the same poles are brought together then the poles are repel each other.
Therefore, the correct answer is A.
Answer:
18.2145 meters
Explanation:
Using the conservation of momentum, we have that:
m1 = m1' is the mass of the astronaut, m2=m2' is the mass of the satellite, v1 and v2 are the inicial speed of the astronaut and the satellite (v1 = v2 = 0), and v1' and v2' are the final speed of the astronaut and the satellite. Then we have that:
The negative sign of this speed just indicates the direction the astronaut goes, which is the opposite direction of the satellite.
If the astronaut takes 7.5 seconds to come into contact with the shuttle, their initial distance is:
Answer:
v=1.26 m/s
Θ=81°NE
Explanation:
Linear momentum is the product of the mass and velocity of an object.
Dog's momentum can be hold using its mass and velocity:
m=26.2kg
v=3.21 m/s
(kg⋅m/s)
same thing with the cat
m=5.30kg
v=2.64m/s
(kg⋅m/s)
owner's momentum
p =13.992 m/s i + 84.102 m/s j
divide by mass to get velocity:
v = 0.20m/s i + 1.25 m/s j
mag v = √(0.20² + 1.25²) m/s = 1.26 m/s
Θ = arctan(1.25/0.2) = 81º north of east
A control is B, standard for comparison. This is used to compare for example plants and using different fertilizers and then have one with no fertilizer. Controls are basically just a base to the entire experiment
I hope this helps you!:)