It would be -(-31) because a negative and negative is a positive
Answer:
21
first we begin from 1 to 100 we find 11 numbers contain 1 then we count 1s from 10 to 19 we get 9 numbers but there is an exciption in number 11 as it cotains 2 1s so thenumber of 1s is 21
Answer:
Moving Car. Moving cars possess some amount of kinetic energy. ...
Bullet From a Gun. A bullet fired from a gun has very high kinetic energy, and, so, it can easily penetrate any object. ...
Flying Airplane. ...
Walking & Running. ...
Cycling. ...
Rollercoasters. ...
Cricket Ball.