Answer:
0.1m/s²
Explanation:
as we know that
acceleration=velocity/time taken
a=12/120
a=0.1m/s²
distance=speed×time.
45×20=900m.
Nodes.
Nodes are a point that are on a standing wave that never move.
75°C
175−25/225−25=x−0/100−0
150/200=x/100
x=150×100/200
= 75°C
about 8 mins and 20 secs
a balance and a beaker of water
The mass can easily be measured with balance. If you drop the key in a beaker of water, the water inside the beaker will increase and this increases the volume of water that will be equal to volume of key.