3/5•(4e+5kg)
:
Factor out 3/5 from the expression
3/5•(4e+5k)
Use the commutative property to reorder the terms
3/5(4e+5k)
Answer:

Explanation:
The Law of Conservation of Mass states that mass cannot be created or destroyed.
So, in a chemical reaction, the mass before a reaction and after cannot be different. In other words, the mass of the products must be equal to the product of the reactants.
So, this is a <u>true statement.</u>
Answer:
Explanation:
This problem can be solved with the conservation of the momentum.
If the ball is fired upward, the momentum before and after the ball is fired must conserve. Hence, the speed of the ball is the same that the speed of the car just in the moment in wich the ball is fired.
Hence, the result depends of the acceleration of the car. If the change in the speed is higher than the speed of the ball, it is probably that the ball will be behind the car or it will come back to the car.
If the ball is fired forward, and if the change in the speed of the car is not enogh, the ball will be in front of the car.
HOPE THIS HELPS!!
Any unit of acceleration must have the dimensions (form) of
(a unit of length) / (a unit of time)²
You would have to use a machine to convert the colors to one visible by humans or become some other species of animal with a larger light spectrum.