A,c, and d are your answers :)
No
Explanation:
Average speed of car = 5m/s
Distance run by dog = 20m
Time taken = 5s
problem;
does the dog catches the car = ?
Solution;
let us determine speed of the dog;
Speed =
= 4m/s
The average speed of the car is 5m/s
Average speed of the dog is 4m/s
The dog is slower than the car and it will not catch the car at this rate.
learn more:
Average speed brainly.com/question/5063905
#learnwithBrainly
Answer:
There are five signs of a chemical change:
Color Change.
Production of an odor.
Change of Temperature.
Evolution of a gas (formation of bubbles)
Precipitate (formation of a solid)
Explanation:
I just went ahead and gave you the five signs of chemical change hoped it helped
An atom gains one or more electrons and becomes negatively charged, or loses one or more electrons and becomes positively charged.
Explanation:
weight=mass*gravity
w=mg
first change 220g to kg like this
1kg=1000g
?=220g
1kg*220g/1000kg=220/1000g
mass =0.22kg
now we can continue
w=0.22kg*10m/s^2 or w=0.22kg*10N/kg
=2.2N =2.2N
hope it helps you