Answer:
here are some fun facts lol
Dolphins sleep with one eye open
Hot water will turn into ice faster than cold water.
A crocodile cannot stick its tongue out
It is physically impossible for pigs to look up into the sky
Grapes light on fire in the microwave
McDonald's once created bubblegum-flavored broccoli.
It's impossible to sneeze with your eyes open.
High Heels Were Originally Men's Shoes
The strongest muscle in the body is the tongue.
While they are hibernating, bears do not urinate
Gummy bears were originally called "dancing bears."
Explanation:
About a mil sience 2014-2015
Via half-life equation we have:
Where the initial amount is 50 grams, half-life is 4 minutes, and time elapsed is 12 minutes. By plugging those values in we get:
There is 6.25 grams left of Ra-229 after 12 minutes.
Momentum, p = m.v
m of the girl = 60.0 kg
m of the boat = 180 kg
v of the girl = 4.0 m/s
A) Momentum of the girl as she is diving:
p = m.v = 60.0 kg * 4.0 m/s = 24.0 N/s
B) momentum of the raft = - momentum of the girl = -24.0 N/s
C) speed of the raft
p = m.v ; v = p/m = 24.0N/s / 180 kg = -0.13 m/s [i.e. in the opposite direction of the girl's velocity]
Answer: Hot spot
The volcanic hot spot is an area in the mantle from which heat rises as a thermal plume from deep in the Earth.
