Try to draw Humpty Dumty cracked on the floor with men all around him
For some mysterious reason, we can't see the graph.
On a position/time graph, constant velocity is represented by a <em>straight line</em>. Depending on the velocity, the line may be sloping up, sloping down, or horizontal. The only thing the line on the graph <u><em>CAN't</em></u> be is vertical.
Answer: Conduction occurs more readily in solids and liquids, where the particles are closer to together, than in gases, where particles are further apart.
Answer:
emf=-0.035V
Explanation:
this problem can be solved with the Lenz's law:
where PhiB is the magnetic flux. In this case we have
due to the magnetic field is constant. A is the area of the circular loop. Hence
Finally
HOPE THIS HELPS!!
Answer:
a.) L = 2.64 kgm^2/s
b.) V = 4.4 m/s
Explanation: Jessica stretches her arms out 0.60 m from the center of her body. This will be considered as radius.
So,
Radius r = 0.6 m
Mass M = 2 kg
Velocity V = 1.1 m/s
Angular momentum L can be expressed as;
L = MVr
Substitute all the parameters into the formula
L = 2 × 1.1 × 0.6 = 1.32kgm^2s^-1
the combined angular momentum of the masses will be 2 × 1.32 = 2.64 kgm^2s-1
b. If she pulls her arms into 0.15 m,
New radius = 0.15 m
Using the same formula again
L = 2( MVr)
2.64 = 2( 2 × V × 0.15 )
1.32 = 0.3 V
V = 1.32/0.3
V = 4.4 m/s
Her new linear speed will be 4.4 m/s
