Very important formula: (You should memorize it.)
Speed = (Distance covered) / (time to cover the distance)
Distance covered = (position at the end) minus (position at the beginning)
= ( 64 m - 4 m ) = 60 meters
Time to cover the distance = 30 seconds.
Speed = (60 meters) / (30 seconds)
= (60/30) (meters/seconds)
= 2 meters per second .
The safest way to get out of a rip current is to first go out the side of the current then go back to the beach keep in mind that you should also if a friend is with you use double power and go in the same direction and make sure your parent calls 911 or coast guard
Cheers!
AlexFray555
Answer: Option (A) is the correct answer.
Explanation:
It is known that metals are malleable and ductile. Whereas non-metals are neither malleable nor ductile.
On the other hand, metalloids are the elements which contain properties similar to both metals and non-metals.
Therefore, if a material is ductile, it is most likely a metalloid because it is not necessary that ductility is a property shown by metals only.
Wherease like non-metals, noble gases are also neither malleable nor ductile.
Answer:
P₃ > P₁ > P₂
Explanation:
To rank pressure of the given situation
a) we know
Pressure at height h below
P = ρ g h
density of salt water, ρ = 1029 kg/m³
P₁ = 1029 x 10 x 0.2
P₁ = 2058 Pa
b) density of fresh water, ρ = 1000 kg/m³
P₂ = 1000 x 10 x 0.2
P₂ = 2000 Pa
c) density of mercury, ρ = 13593 kg/m³
P₃ = 13593 x 10 x 0.05
P₃ = 6796.5 Pa
Rank of Pressures from highest to lowest
P₃ > P₁ > P₂
Answer:
Slowing down: A car decelerating because it's coming up to a red light.
Speeding up: A car accelerating because a red light has turned to a green light.
Moving at a constant speed, but changing direction: A car turning at a curve.
Moving at a constant velocity, with zero acceleration: A car on an empty highway.
Explanation:
Drive a car around or look at cars on the highway, you'll see the examples listed above happening all the time.