Answer:
9m/s^2
Explanation:
solution,
Given. Initial velocity (u)=0m/s
Final velocity (v)=45m/s
Time taken(t)=5sec
Acceleration (a)=?
we know,
a=v-u/t
=45-0/5
=45/5
=9m/s^2
Therefore acceleration (a)= 9m/s^2
Answer:
Mercury
Explanation:
Mercury streches when it is hot so that is why it goes up when the temperature is higher
Atomic disguise makes helium look like hydrogen. ... A helium atom consists of a nucleus containing two positively charged protons and two neutrons, encircled by two orbiting electrons which carry a negative charge. A hydrogen atom has just one proton and one electron
Well most of the particles did pass through and a few were deflected. but i think the answer is A
Period = 6 seconds and 
.
<u>Explanation:</u>
We have , the motion of a swing that requires 6 seconds to complete one cycle. Period is the amount of time needed to complete one oscillation . And in question it's given that 6 seconds is needed to complete one cycle. Hence ,Period of the motion of a swing is 6 seconds . Frequency is the number of vibrations produced per second and is calculated with the formula of 
. SI unit of frequency is Hertz or Hz. We know that time period is 6 seconds so frequency =
⇒ 
⇒ 
⇒
Therefore , Period = 6 seconds and .
