Answer:
Work done on the car will be 548440.9463 J
Explanation:
We have given mass of the car m = 1075 kg
As the car finally stops so final velocity of the car
Initial velocity of car u = 115 km/hr
Work done is equal to change in kinetic energy
So work done
=
As the work done is negative so work is done on the car to stop it .
Answer:
14.484 kilometers
Explanation:
formula= for an approximate result, multiply the length value by 1.609
Answer:
The acceleration must be a little less than 9.8 m/s²
Explanation:
In this case, we know that the baseball is doing a circular orbit around the earth, therefore, the value of acceleration due of gravity would have to be 9.81 m/s²; however, this is not always true.
For a circular orbit, the change in velocity is a vector that is perpendicular to the direction of motion. That is, the acceleration is a vector pointing towards the center of the Earth, (so it is constantly changing even if the magnitude is not). For a circular orbit, the speed is not changing. That is, the magnitude of the velocity is constant, and only the direction is changing. Therefore, we use the value of gravity.
This value of gravity is only true when is taked from the surface of Earth, in other word, at sea level. However in this case, it's not. Superman throws the ball in the top of the very tall mountain. And alike the pressure, this value, decreases with the height. The gravity do the same thing. As we go up, the value of gravity is less than the usual.
Therefore, the value of the acceleration would have to be less of 9.81 m/s²
Explanation:
We know that for the plant;
Tall is represented by T
Short is represented t
Phenotypically, TT and Tt have the same expression.
The phenotype of an organism denotes the observable feature it possesses. Although determined by the genetic composition but the environment plays a very important role in its expression.
The genotype is the genetic make up of an organism. TT and Tt denotes the genes that occupy positions in the nucleus of the cell.
Both TT and Tt shows that the organism is tall. t is short and recessive.