Match the following with the correct definition. 1. High-energy light is released from the nucleus of an atom. 2. High-energy particles or rays are emitted by the nuclei of some atoms. 3. Mass number is the sum of the number of these and the number of protons in the nucleus of an atom. 4. This has a mass number of 4 and a charge of 2+. 5. An electron or a positron is released from the nucleus of an atom. 6. A large nucleus splits into two smaller nuclei, releasing energy. 7. These are particles that keep a nuclear chain reaction going. 8. Small atoms join to form a larger nucleus, releasing energy. a. alpha particle d. nuclear radiation g. nuclear fission b. beta particle e. neutrons (used twice) c. gamma rays f. nuclear fusion

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.

The chart shows the costs and shipping times for materials that a company needs to build a new product. which describes the best trade-off if the company needs to start building their product within the next two years? they should order the domestic materials because it is always best to choose the fastest shipping time. they should order the imported materials because it is always best to choose the lowest cost for materials. since the shipping time is longer, they should order the domestic materials because the additional cost is worth it to get the materials in time. even though the shipping time is longer, they should order the imported materials because they are less expensive and should arrive in plenty of time to build the product.