Since the amount of matter does not effect average kinetic energy, it must have a higher average kinetic energy. (b)
Answer:
The maximum electric field strength is
Explanation:
Substitute 4.0 cm for D
r = D / 2
r = 4 / 2 = 2cm
= 2 × 10⁻²m
Now, according to the question, the expression for the magnetic field is as follows:
B = 10T + 2T sin(2π(10Hz) t )
Now, calculate
Therefore, the electric field expression is as follows:
Substitute 0 for t in the above equation
Now substitute 1.5 cm for r in the above equation
The maximum electric field strength is
Answer: The scientists should form a hypothesis and design an experiment.
To form a scientific theory and law, the first step is always to formulate a question based on some observation. The n next step is to formulate a hypothesis and then an experiment is designed. The experiment is conducted and the data is collected and recorded. The, conclusions are drawn and results are communicated.
Hence, the next step after formulation of a question based on an observation, the scientist should form a hypothesis and design an experiment.
Explanation:
It is given that,
The velocity of a particle is given by :
Where
v is in m/s and t is in seconds
Let a is the acceleration of the object at time t. So,
When a = 0
t = 2.5 s
a is zero at t = 2.5 s. Velocity,
v = -75 m/s
Since, , s is the distance travelled
At t = 2.5 s,
s = −83.34 m
Hence, this is the required solution.