By timing yourself :)
or are you talking about mph?
Answer:
Part(a): The average acceleration is during the first 6s.
Part(b): The average acceleration from 6s to 8s is zero.
Explanation:
Part(a):
The average acceleration is defined as the rate at which velocity is changing with respect to time. So if '', '' and '' represents the initial velocity, final velocity, and average acceleration of a particle, then mathematically
where '' is the time taken by the particle to achieve the velocity '' starting from initial velocity ''
Given in the problem, .
So the average acceleration() during the first 6 s will be
Part(b):
During the time between 6 s to 8 s, as mentioned in the problem, the sprinter maintains the constant velocity. So the average acceleration during this time interval will be zero.
d. fishing
The other options all directly affect algal bloom production because they affect the nutrients in the water, and an overabundance of certain nutrients in the water is what causes algal bloom.
Answer:
Object B has greater density
desity A=20/10=2 g cm^-3 . density B=50/10=5 g cm^-3
the object that has greater mass has the greater density because the volume of the those two objects are same
Hey y'all <3
Answer:
A magnetic field pulls and pushes electrons in certain objects closer to them, making them move. Metals like copper have electrons that are easily moved from their orbits. If you move a magnet quickly through a coil of copper wire, the electrons will move - this produces electricity.
Hope this helped <3