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solong [7]
3 years ago
9

If a fossil contains 50% of the amount of carbon that a living animal contains, how many half lives have passed while it decayed

? How old is the fossil? (half lives x 5730)
Physics
1 answer:
Igoryamba3 years ago
4 0

Answer:

Carbon 14 has a half life of 5730 years? I think this is right hope it helps!

Explanation:

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How does depth of liquid affect pressure in solids
enyata [817]
The higher the depth, the higher the mass of the liquid that creates pressure
6 0
3 years ago
A car is moving on the distance 35km in the time 30minutes,stays 20 minutes,the it moves again vith the velocite 60km/h in 25 mi
FinnZ [79.3K]
Velocity = distance/time
v = (35)/(1/2)
v = 70 km/h


60 km/h for 25 minutes
25 minutes = 25/60 hour
    distance= velocity * time
d =(60) * (25/60)
d = 25 km

ΔV = { V(initial) - V(final) } / time
v= (70-60) / (45/60)
average velocity = 13.33 km/h
avg veloticy = 3.7 m/s

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8 0
3 years ago
Two waves meet and overlap. The first wave has an amplitude of 4.6 centimeters and the second wave has an amplitude of 2 centime
vodka [1.7K]

Answer:

Explanation:

The amplitude of resultant wave as the result of  overlap of two waves depends upon the phase difference between the two.  If the waves meet crest to trough , the phase difference is 180 degree or they are in opposite phase . Hence they will destroy each other . The amplitude of resultant wave can be obtained by subtracting the amplitudes of two waves. They will interfere destructively.

Amplitude of resultant gives waves = 4.6 - 2 = 2.6 cm.

3 0
3 years ago
What is the answer please help me!
Juliette [100K]

Answer:

The greatest force of gravity on the ball will occur at the point when the ball is near to hit the ground

Explanation:

We know that the earth's center attracts everything towards its center with an acceleration of 9.8 m/s² so it simply means that the change in velocity must occur to produce acceleration. When the ball comes towards the earth, its speed  continuously increases and it is at maximum level when it is about to hit the ground so this is the point where gravitational force is maximum.

I hope this helps ^_^

6 0
3 years ago
Before light can undergo total internal reflection when incident on material 2 from material one, what must be true
otez555 [7]

Uh i think you need to show me the material one and material 2?

7 0
2 years ago
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