Answer:
A growth rate of 1.6%
It takes approximately 43.75 years to double.
Explanation:
Calculating the growth rate: 40 - 24 = 1616/1000 = 0.016 x 100 gives us a 1.6% growth rate.
Calculating doubling time: 70/1.6 equals roughly 43.75 years.
Applying the disinfectant once removes 90% of the bacteria, leaving 10% remaining.
Applying it a second time eliminates 90% of that remaining 10%, so you calculate 10 minus 90% of 10 to find the leftover bacteria after two applications.


This results in only 1% of the bacteria still being present, meaning that
99% of the original bacteria have been eradicated.
Answer:
The friction force is what counteracts the movement of the block as it slides down the ramp.
Explanation:
When a forward force is applied, the block moves horizontally along the ramp or floor. The force opposing this movement is known as friction. When stationary, static friction acts on the block preventing movement, but once the block starts moving, static friction is replaced by kinetic friction, which resists the block’s motion and slows it down.