The type of radiation that can penetrate through paper, but not through wood is called beta rays. Beta rays can penetrate paper and air, but a thin piece of alimony can stop it. Gamma can cut through anything except lead and many inches of concrete. Alpha can be stopped by paper and not penetrated. The correct answer is B.
Answer: The field lines bend away from the second positive charge
Explanation: opposite attracts, same repulse
256 kPa because p-guage + p-absolute + p-atmospheric = 256
-reflection and refraction of light
-dispersion of light
-absorption of light
-polarization of light
Answer:
17.71N/m
Explanation:
The period of the spring is expressed according to the expression;

m is the mass of the object
k is the force constant
Given
m = 5.50kg
T = 3.50s
Substitute into the formula;

Hence the force constant of the spring is 17.71N/m