A scalar is a quantity that has only magnitude and no direction while vector has both magnitude and direction.Distance is a scalar quantity because when you are asked to calculate the distance of an object from a point you will just calculate it's magnitude but if it is displacement you will need to calculate the magnitude and direction.
Answer:
A. force
Explanation:
Magnetism is a type of force.
Answer:
29.6 kg
Explanation:
Centripetal force = mass × centripetal acceleration
F = m v² / r
88.0 N = m (2.50 m/s)² / 2.10 m
m = 29.6 kg
Answer:
1.48 Mpa
Explanation:
Given that For a polymer that was maintained at constant strain, an initial stress of 2.76 MPa decreases to 1.72 MPa after 6 hr. To estimate the stress remaining after 30 hr, we must first find the decay constant by using the exponential equation.
Therefore, the estimate of the stress remaining after 30 hr, is 1.48Mpa.
Please find the attached file for the solution.
The electrons in an atom can only occupy certain allowed energy levels. ... Only certain energy levels are allowed, so only certain transitions are possible and hence specific wavelengths are emitted when an electron drops to a lower energy level
Explanation: