<span>The question is asking us what is BEST to say about a runner who is running at a constant velocity? A constant velocity (=speed) means that they are not getting faster or slower - they are running exactly as fast all the time. This meanst that their speed does not change, so their change of speed is equal to 0. A change of speed is called acceleration so their C. Their acceleration is zero. - C is the correct answer. </span>
Answer: 24
Explanation:
Given the following equation:

Where
is the number of mushrooms in a pizza and
the number of pizzas.
If we know the restaurant will make 8 pizzas (
), then:

This is the needed number of mushrooms for 8 pizzas
Acceleration is the speed of an object speeding up
Whether it is velocity or just speed
Carbonate
as it it is made up of more than 1 type of ion.
'poly' means many
Answer:
buoyant force on the block due to the water= 10 N
Explanation:
We know that
buoyant force(F_B) on a block= weight of the block in air (actual weight) - weight of block in water.
Given:
A block of metal weighs 40 N in air and 30 N in water.
F_B = 40-30= 10 N
therefore, buoyant force on the block due to the water= 10 N