Answer: A
Explanation: isotopes of the same thing element have the same number of protons in the nucleus but differ in the number of neutrons.
Answer:
in everyday use and in kinematic the speed of an object is the magnitude of the change of its position it is thus a scalar quantity
C. 340
Frequency is the number of wavelengths per second and since the length is 0.5 you multiply 0.5*686 and get 343.
the question not allowing for one position thus the answer is c
I believe the correct answer is B.<span>positively charged hair.</span>
Answer:
There cannot be a force without motion and if there is no motion, then there is no force acting.
Explanation:
A force is a vector that causes an object with mass to accelerate.
