Use Rutherford’s gold-foil experiment to answer : What did Rutherford expect to happen when he aimed particles at the gold foil?

Suppose an electron is chasing a proton up this page when suddenly a magnetic field pointing into the page is applied. What would happen to the particles?

Barbed wire is often made of steel, which is primarily iron, and coated with zinc. Compare the number of particles and the mass of 1 mol of each.

Four particles are located at the corners of a square that is 50 mm on a side. All four particles carry a charge of magnitude 3.0 nC, with positive charge at the lower left corner and negative charge at the other corners. Draw the electric field vectors at the center of the square caused by each of the four source charges, then determine the magnitude and direction of the electric field at the center of the square.

Consider the following experiment: flip a coin until a head appears.

Find the probability that it takes more than 6 rolls to observe a 3.

Suppose that S={1,2,3,4,5,6,7,8,9,10} is the sample space for an experiment with events $E=\{1,3,5\},\ F=\{3,5,7,9\},\ G=\{2,4,6,8\}.$ Determine the indicated events. $E \cup F$

Match the subatomic particles (1 to 3) to the descriptions below: mass number – atomic number

1. protons 2. neutrons 3. electrons

What might have been the product ratios observed in this experiment if an aprotic solvent such as dimethyl sulfoxide had been used instead of water?

For the experiment of tossing a coin and rolling a die, list the event corresponding to each description and find its probability.

a number less than $10$

Choose the letter of the best answer. In a mineral, the particles line up in a repeating pattern to form a(n) a. element. b. crystal. c. mixture. d. compound.

Assume the same information as in the preceding exercise except that Roosevelt has an active trading strategy for these bonds. The fair value of the bonds at December 31 of each year-end is as follows.

$$\begin{array}{lrr} \text{2017}&\text{\$\hspace{5pt}534,200}\\ \text{2018}&\text{515,000}\\ \text{2019}&\text{513,000}\\ \text{2020}&\text{517,000}\\ \text{2021}&\text{500,000}\\ \end{array}$$

Instructions

• a. Prepare the journal entry at the date of the bond purchase.
• b. Prepare the journal entries to record the interest revenue and recognition of fair value for 2017.
• c. Prepare the journal entry to record the recognition of fair value for 2018.

Find the energy absorbed by a $78 \mathrm{~kg}$ person who is exposed to $52 \mathrm{~mrem}$ of $\alpha$ particles with an $\mathrm{RBE}$ of $15$.

When a gong vibrates, the air particles next to the gong do not reach your ears, yet you hear the sound of the gong. Explain.

When Max was able to describe his experiment so thoroughly that Maurice could get the same results, Max's experiments now had __ _