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kykrilka [37]
3 years ago
15

How do scientists identify how old rock and fossils are?

Physics
1 answer:
slavikrds [6]3 years ago
7 0

Dating Rocks and Fossils Using Geologic Methods. ... The age of the fossil must be determined so it can be compared to other fossil species from the same time period. Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms.

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Could a nucleus that has one proton but no neutrons exist?
diamong [38]
Yes, but there is only 1 atom like that and is is hydrogen. Hydrogen is the only element that could have a nucleus with one proton and no neutrons exist.
8 0
3 years ago
An automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the nafural fre
alexandr1967 [171]

Answer:Frequency = 3.525 Hertz

Explanation:In static equilibrium, kd =mg

Where k= effective spring constant of the spring.

mg= The weight of the car.

d= static deflection.

Therefore, w =SQRTg/d

w = SQRT 9.81/0.02

w= 22.15 rad/sec

Converting to Hertz unit for frequency

1 rad/s = 0.1591

22.15rad/s=?

22.15 × 0.1591= 3.525 hertz

7 0
3 years ago
Can someone please help, ;w;?
SOVA2 [1]
I believe the answer is 3). The cell wall provides protection, it doesn’t control movements of materials in and out of the cell.
7 0
4 years ago
Read 2 more answers
If the force of attraction (gravity) on the moon is 1/6 that of the force on Earth, what would
Aloiza [94]

I believe that you would weigh around 68 or 69 N, or 7 kilograms.

4 0
3 years ago
1. Calculate the momentum of each car before the collision: SHOW YOUR WORK!
a_sh-v [17]

Answer:

Momentum of red car = 5kgm/s

Momentum of blue car = 0kgm/s

Explanation:

Momentum = mass × velocity

For the red car

Mass = 1kg

Velocity = 5m/s

Momentum of the red car = 1kg × 5m/s

Momentum of the red car = 5kgm/s

For the blue car.

Mass = 1kg

Velocity = 0m/s(shows that the blue car is stationery)

Momentum = 1kg ×0m/s

Momentum of the blue car = 0kgm/s

3 0
3 years ago
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