What does PreCambrian mean in Greek? Precambrian* – all the time prior to the start of the Cambrian (not a formal era/eon name) * synonymous with “Cryptozoic” – Greek for “hidden life” Proterozoic eon – Greek for “former life” What does period mean in geologic time scale? Period, in geology, the basic unit of the […]
Is it OK to use microwave everyday?
Is it OK to use microwave everyday? (Of course, the heat in a microwave isn’t harmless — so you should never put, say, a living creature inside of a microwave. “Microwaves are part of the electromagnetic waves we’re exposed to daily. When you bake bread, you’re exposed to electromagnetic waves and infrared energy from the […]
What are two ways to increase kinetic energy?
What are two ways to increase kinetic energy? If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. The word “kinetic” comes from the Greek word “kinesis” which means motion. Kinetic energy can be passed from one […]
What is the best evidence in the text for the prediction that Champollion will eventually figure out the T hieroglyph?
What is the best evidence in the text for the prediction that Champollion will eventually figure out the T hieroglyph? The only hieroglyph that confused Champollion was the one for “T,” which was different in the two names. What is the best evidence in the text for the prediction that Champollion will eventually figure out […]
What is a quantized value?
What is a quantized value? Quantized: In quantum mechanics, the concept that a system cannot have any possible energy value but instead is limited to certain specific energy values (states). The states depend on the specific system in question. How is a piano An example of a quantized system? When you play a piano, you […]
Which group is very unreactive?
Which group is very unreactive? noble gases Why does group 18 have no charge? Noble gases are relatively inert and nonreactive due to their full outer shell of electrons. Having a full valence shell of 8 electrons means that the atom is already in its most stable state, and thus, there is no need for […]
What is the difference between radar and Doppler radar?
What is the difference between radar and Doppler radar? How is Doppler different from conventional radar? Conventional radar detects the presence of dense objects (such as precipitation) in the field, while the Doppler system detects a phase shift between the outgoing and incoming signals. What does a tornado look like on Doppler radar? Meteorologists look […]
What will be my mass if my weight is 50 kg?
What will be my mass if my weight is 50 kg? However, WEIGHT does vary given the gravitational well. A mass of 50⋅kg has a WEIGHT of 50⋅kg×9.81⋅N⋅kg−1=490.5⋅N on the earth, but a weight of 50⋅kg×1.622⋅N⋅kg−1=81.1⋅N on the moon…… What is a healthy weight for a 4 11 female? Height and Weight Chart Height Weight […]
What are 2 types of diffusion?
What are 2 types of diffusion? Diffusion can be classified into two main types: Simple diffusion and facilitated diffusion. Why does simple diffusion happen? The kinetic energy of the molecules results in random motion, causing diffusion. In simple diffusion, this process proceeds without the aid of a transport protein. it is the random motion of […]
Is gold a solute?
Is gold a solute? Not all solutions are liquids. Solutions can also be solids. In a solid solution, both the solvent and the solute are solids. In this case, gold is the solvent and the other metals are the solutes. Why is gold a homogeneous mixture? Because the material is uniform throughout, it is homogeneous. […]