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kakasveta [241]
2 years ago
12

I need help ASAP

Physics
1 answer:
ddd [48]2 years ago
3 0
I’m pretty sure the correct answer is plasma I am so so so so sorry if it’s incorrect
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When is a secondary source more helpful than a primary source?
UNO [17]

Answer:

I think the answer is C.

Explanation:

A primary source is a first hand account of an event while a secondary source is a retelling or second hand account meaning as many details will be prevalent.

8 0
2 years ago
A car has uniform velocity of 108km/hour. How far does it travel in 1 1/2 minutes
Nostrana [21]

Answer:

2.7km

Explanation:

Two methods: Convert km/hour to km/minutes or convert 3/2 minutes to hours.

Then multiply time to get the distance of the car traveled.

3 0
2 years ago
Helppppppp pleaseeee
SVETLANKA909090 [29]

Answer: (Sorry, but I don't know how to calculate mass)

1. 15 N

2. 0.4921 \frac{ft}{s^2} (feet per second squared)

4. 150 N

5. 8.202 feet per second squared

3 0
2 years ago
When the mass of an object decreases, the force of gravity - Remains Unchanged - Decreases - increases - Becomes irregular
Gwar [14]
The force of gravity decreases
5 0
3 years ago
Read 2 more answers
Determine the amount of time for polonium-210 to decay to one fourth its original quantity. The half-life of polonium-210 is 138
Tju [1.3M]

Answer:

276 days

Explanation:

1/4 th of the original means <u><em>2 half lives</em></u>

1 half life = 138 days

So,

2 half lives = 276 days

5 0
2 years ago
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