Hello Paige,
Question - Please select the word from the list that best fits the definition Fossils up to 75,000 years old can be dated with ______.
Answer - Carbon 14
A model train traveling at a constant speed around a circular track has a constant velocity. FALSE.
Hope this helps you!
The longest distance that a person can swim is 5.64 m.
<h3>What is the longest distance?</h3>
We know that the diameter of a circle is a line that is drawn from one point to another in the circle. Now we are told that the pool is circular in nature. That implies that the longest that a person can swim could be obtained form the diameter of the circle.
Given that;
A = πr^2
A = area of teh circular pool
r = radius of the pool
r = √A/ π
r = √25/3.142
r = 2.82m
Diameter of the circular pool = 2 r = 2 (2.82 cm) = 5.64 m
Learn more about circle:brainly.com/question/11833983
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Missing parts;
An ad for an above-ground pool states that it is 25 m2. From the ad, you can tell that the pool is a circle. If you swim from one point at the edge of the pool to another, along a straight line, what is the longest distance d you can swim? Express your answer in three significant figures.
1. It moves in waves
2. The distance light travels in one year
3. 300,000 kilometers
4. reflection
5. 30 degrees
6. true
7. false
Answer:
V=28.5m/s
b=V=28.5m/s
c=V=28.5m/s
Explanation:
A slingshot fires a pebble from the top of a building at a speed of 15.0 m/s. The building is 30.0 m tall. Ignoring air resistance, find the speed with which the pebble strikes the ground when the pebble is fired.
(a) horizontally,
(b) vertically straight up,
(c) vertically straight down.
u=15m/s
yi=30m
v=?
yf=0
system=pebble+earth
workdone=0
chnage in energy=0
ki+Ui=Kf+Ui
K=kinetic energy
U=potential energy
1/2mv^2+mgyf=1/2mu^2+mgyi
V^2=u^2+2gyi
V=
V=28.5m/s
b. and c will be the same as a. because the magnitude of the kinetic energy is dependent on the velocity and not the magnitude which the pebble is tilted at
