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mamaluj [8]
3 years ago
12

Thorium (Th) has an average atomic mass of 232.04 u and an atomic number of 90. In the space below, draw a square from the perio

dic table to represent thorium.
Physics
1 answer:
Alchen [17]3 years ago
3 0

Answer:

Explanation:

90

Th

232.04

Box that and there is your answer.

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A sound wave travels in a straight line at a constant speed of 660 mph. What is
Fed [463]

Answer:

a = 0

Explanation:

The velocity of a sound wave in a straight line is 660 mph. The wave is moving with a constant velocity. It means that the change in velocity is equal to 0.

We know that acceleration of an object is equal to the change in velocity divided by time taken. But here the change in velocity is 0. As a result the acceleration of the sound wave is 0.

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Smialarities between kinetic friction and static friction?
kiruha [24]

Kinetic and static friction are both resistive forces

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The magnitude of each force is 208 N the force on the right is applied at an angle 36° and the mass of the block is 17 kg the co
djyliett [7]

Answer:

<em>11.06m/s²</em>

Explanation:

According to Newtons second law of motion

\sm F_x = ma_x\\F_m - F_f = ma_x\\mgsin \theta - \mu R mgcos \theta = ma_x\\

Given

Mass m = 17kg

Fm = 208N

theta = 36 degrees

g = 9.8m/s²

a is the acceleration

Substitute

208 - 0.148(17)(9.8)cos 36 = 17a

208 - 24.6568cos36 = 17a

208 - 19.9478 = 17a

188.05 = 17a

a = 188.05/17

a = 11.06m/s²

<em>Hence the  the magnitude of the resulting acceleration is 11.06m/s²</em>

6 0
2 years ago
Why are atoms of lithium, sodium, and potassium almost never found alone together in nature?
nikdorinn [45]

atoms of lithium, sodium, and potassium almost never found alone in nature because t<span>hey have only one electron in their outer most shell which makes them very reactive and they react with other atoms thats why. I hope this can help you</span>

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What is carbon dating?
ratelena [41]

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Im pretty sure its number 2

Explanation:

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