8. For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotope:

You have an neutrally charged isotope with 30 electrons and a mass number of 64. How many neutrons?

30

34

94

64

Suppose you have a 113-kg wooden crate resting on a wood floor. (μk = 0.3 and μs = 0.5) (a) What maximum force (in N) can you exert horizontally on the crate without moving it?

The difference in electric potential between a thunder cloud and the ground is 1.53 108 V. Electrons move from the ground which is at a lower potential to the cloud which is at a higher potential.

Consider a simple ecosystem of a shrub, worm, bird, and soil microbes and identify the producer, primary consumer, secondary consumer, and decomposers.

Why does the weight of an object change and mass of an object does not change when the object is moved to a different planet

Dan earns?360 over the course of a five-day week. How much is that per day?

How was bohr atomic model similar to Rutherford's model

A rigid container filled with a gas is placed in ice. What will happen to the pressure of the gas? And what will happen to the volume?

A man is sitting on a 20 m height building and his mass is 50 kg. Calculate the mechanical energy.

Which of the following correctly describes which types of waves travel through which types of mediums? A) Transverse waves travel through solids, liquids, and gases.

Niko was hiking in the mountains when he found a spring, or a place where water naturally flows out of the ground. Where did the water in the spring come from? A. It is water that was squeezed out of an igneous rock when the rock changed. B.