Answer:
a) 9.0
Explanation:
The force between two point charges, obeys Coulomb's Law, which can be written as follows:
As it can be seen, if the separation between the charges remains the same, the new value of the force will be directly proportional to the product of the charges.
If both charges are tripled, the mutual force between them will be changed in a factor equal to 3.0*3.0 = 9.0
His error is turning off the fume hood. If his work station is right next to the fume hood then that means he is breathing in chemicals. He shouldn't of turned off the fume hood, he should move to another work space. And turn the fume hood back on.
Answer:
0.336 rad/s
Explanation:
= Angular speed of the turntable = -0.2 rad/s
R = Radius of turntable = 2.9 m
I = Moment of inertia of turntable = 
M = Mass of turn table = 53 kg
= Magnitude of the runner's velocity relative to the earth = 3.6 m/s
As the momentum in the system is conserved we have
The angular velocity of the system if the runner comes to rest relative to the turntable which is the required answer is 0.336 rad/s
Answer:
You should still workout 90 min.
The proper time is measured by a single clock in a single place.
The proper time on earth is 90 min.
The clock on the rocket is also in a single place in the frame of the rocket so you still need to workout for 90 min.
Answer:
Negative interference
Explanation:
Thinking process:
In the physics, the interference is when there is either an additive or destructive effect in the effects of sound. In the first scenario, the sound is loudest when the speakers are separated at 22 cm apart. This is as a result of constructive interference. Constructive interference results from the additive effect of waves to give the highest pitch. However, as the speakers are moved further, the sound decreases. This is because of the destructive interference where the waves are not much of addition.
