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Dominik [7]
3 years ago
7

Here you go, just answer the question, 100 points

Physics
2 answers:
saul85 [17]3 years ago
8 0

Answer:

THANK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU

Explanation:

I REALLY NEED THIS

densk [106]3 years ago
5 0

Answer:

Oh my gosh yayyy one of the asnwers got deleted!!!! Yay thx for the points

Explanation:

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Energy in an ecosystem is first obtained by
Likurg_2 [28]

Answer:

The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs.

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A 2kg block of which material would require 450 joules of thermal energy to increase its temperature by 1 degree Celsius?
12345 [234]

The block is made of A) Tin, as its specific heat capacity is 0.225 J/(g^{\circ}C)

Explanation:

When an amount of energy Q is supplied to a sample of material of mass m, the temperature of the material increases by \Delta T, according to the following equation :

Q=mC_s \Delta T

where  C_s is the specific heat capacity of the material.

In this problem, we have:

m = 2 kg = 2000 g is the mass of the unknown material

Q = 450 J is the amount of energy supplied to the block

\Delta T = 1^{\circ}C is the change in temperature of the material

Solving the equation for C_s, we can find the specific heat capacity of the unknown sample:

C_s = \frac{Q}{m \Delta T}=\frac{450}{(2000)(1)}=0.225 J/(g^{\circ}C)

And by comparing with tabular values, we can find that this value is approximately the specific heat capacity of tin.

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3 years ago
Definition: The force applied when using a simple machine.
jek_recluse [69]

the force applied when using a simple machine is called the effort force

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3 years ago
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If an object has a fast velocity, the dots on a ticker tape diagram will be _____.
Gala2k [10]

Answer:

If an object has a fast velocity, the dots on a ticker tape diagram will be far apart.

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The graph shows the displacement of a mouse
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The farthest position the mouse reaches inside the tunnel is 4 meters into the tunnel.

From the graph,

The positions reached after,

5 s = 4 m

10 s = 2 m

20 s = 2 m

35 s = 3 m

40 s = 0 m

So the farthest position here is 4 m into the tunnel.

The rate of change of positions is displacement. So displacement will be change in initial and final positions divided by change in time.

s = Δx / Δt

Therefore, the farthest position the mouse reaches inside the tunnel is 4 meters into the tunnel.

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1 year ago
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