NOTE: Check your formula sheet if you have one these are often there.
Ac =
= rω^2
We know r = 4.00m
but what is ω?
ω =
= 2π*f
f is our frequency. we want it in seconds so we can divide by 60.
300/60 = 5rev/s
Ac = rω^2 = (4)(5)^2 = 100m/s
(b) Linear speed or v is equal to v = ω = (5)(4) = 20m/s
340 / 20 = 17
The speed of sound is 17 times faster.
NOTE: finished physics so i might be rusty and use an equation wrong. Tell me if something doesnt make sense. Im still new to this myself.
Explanation:(a) Was this an observational study or an experiment? Explain your reasoning. Experiment, because certain variables were controlled (he sets the screen brightness to low and then starts a movie) to determine if iPhones last longer if the screen brightness is set to low, and it proves the cause and effect relationship.
(b) What is the explanatory variable and the response variable? Response Variable- To determine if iPhones last longer if the screen brightness is set to low Explanatory variable- he sets the screen brightness of 10 of the iPhones to high and starts a movie, then the other 10 to low and starts a movie.
(c) Was a random sample used to collect the data? Yes- “he selects a random sample of 20 brand new iPhones”
It depends,
-during timed tests, such as the SAT or ACT, one does need to remember the passages and information given to answer the questions with deliberate speed to finish on time
-regarding schoolwork, it’s better to read it over twice or thrice just to understand the question and to develop an answer that would best fit it.
The type of homeostatic regulation that is best described by the physiological responses of Jared would be the extrinsic regulation. It is the homeostatic regulation that results from the endocrine system and the nervous system activities. These organ systems are responsible of controlling a number of activities in the body simultaneously.<span />
Answer:
nucleus-the central and most important part of a cell forming the basis for its activity and growth.
organelle- miniscule organs and specialized structures within a living cell, required for cell life and functions
DNA- AKA Deoxyribonucleic acid is a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
Explanation:
