An isotope has a half life of 2 days. After 6 days, how much of the original material is left?

A. 12%

B. 12.5%

C. 30.2%

A runner starts jogging with an initial velocity of 0.85 m/s and eventually reaches with a final velocity of 5.2 m/s. This change in velocity occurs over a displacement of 12.0 m. What is his acceleration?

What is demonstrated by water moving up a straw? evaporation and condensation sublimation and deposition cohesion and adhesion precipitation and transpiration

Find the speed of sound in air at 0 ∘C (1100 ft/s) in m/s

If a tank contains water 4 m deep, what is the pressure at the bottom of the tank? (Neglect the atmospheric pressure.)

What is the main difference between the intertidal zone and the neritic zone?

When a light shines through an object it is called

A man goes from his house to office with a speed of 57km/hr and returns to the house with a speed of 83km/hr in his car. Calculate the average speed of the car.

Identify several factors in the environment that can affect physical fitness levels.

Do Brain cells act and look like skin cells? Why or why not?

A taxi hurries for 1 3/4 hours with a constant speed of 84 mph and then for another 1 hour 45 minutes with a constant speed of 24 mph. what is its average speed for the total trip?