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riadik2000 [5.3K]
3 years ago
6

Fossils cannot be used to explain changes in the earth. True or false

Physics
2 answers:
Zina [86]3 years ago
4 0

False, you can learn what has happened during that time period, for example, an earthquake in 730 AD, volcano eruption, 720 AD, etc etc

kogti [31]3 years ago
3 0
<h2>Answer:</h2>

<u>The statement is</u><u> False</u>

<h2>Explanation:</h2>

Fossils are the traces of an extinct animal or plant which have been preserved on materials such as rocks.  By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. So the statement is False

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Three resistances 2 ohm ,3ohm and 5 ohm are connected in parallel and a
hammer [34]

The potential difference across 3 Ohm resistor is 20V.

The resistors are connected in parallel which means all the three resistances have a fully potential difference of 20V.

7 0
3 years ago
How much work can be done by a 50w motor in 5 sec?
Vaselesa [24]
A 50w motor can do 500w in 5 seconds
4 0
3 years ago
Mr. Jones's prescription calls for 1.04 tablets per day. Based on this information, how many tablets should Mr. Jones take per d
Katarina [22]

Answer:

C.) 1

Explanation:

1 is the closest to 1.04

Also you never want to go above your prescription amount

7 0
3 years ago
Using a horizontal force of 200 n, we intend to move a wooden cabinet across a floor at a constant velocity. What is the frictio
grin007 [14]

By using the second law of Newton, the frictional force is 200N.

We need to know about the second law of Newton (force) to solve this problem. The total force applied an object is proportional to the mass of object and acceleration. It can be defined as

∑F = m . a

where F is force, m is mass and a is acceleration.

From the question above, we know that

F1 = 200N

v = constant therefore (a = 0 m/s²)

By using second law of Newton, we get

∑F = m . a

F1 - Ffriction = m . 0

200 - Ffriction = 0

Ffriction = 200 N

Hence, the frictional force is 200N.

Find more on force at: brainly.com/question/25239010

#SPJ4

5 0
1 year ago
Determine the capacitive reactance for a 20 uF capacitor that is across a 20 volt, 60 Hz source
aleksandr82 [10.1K]

Answer:

Capacitive reactance is 132.6 Ω.

Explanation:

It is given that,

Capacitance, C=20\ \mu F=20\times 10^{-6}\ F=2\times 10^{-5}\ F

Voltage source, V = 20 volt

Frequency of source, f = 60 Hz

We need to find the capacitive reactance. It is defined as the reactance for a capacitor. It is given by :

X_C=\dfrac{1}{2\pi fC}

X_C=\dfrac{1}{2\pi \times 60\ Hz\times 2\times 10^{-5}\ F}

X_C=132.6\ \Omega

So, the capacitive reactance of the capacitor is 132.6 Ω. Hence, this is the required solution.

4 0
3 years ago
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