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ollegr [7]
3 years ago
13

The diagram shows two different types of fossils from the

Physics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

I think the answer is A. X: Mold Y: Cast

Explanation:

Hope that helps!!!

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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.

Learn more about specific heat capacity:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

7 0
3 years ago
As a mercury atom absorbs a photon of
Allisa [31]
The energy absorbed by photon is 1.24 eV.
This is the perfect answer.
8 0
3 years ago
Question 25 of 30
VARVARA [1.3K]

Answer:

it's B. circuit a and b are series circuit while c is parallel

7 0
3 years ago
The radius of the planent venus is nearly the same as that of the earth,but its mass is only eighty percent that of the earth. I
oee [108]
Weight=mg
g=GM/r^2
g on venus is 0.80w as radius is kept constant
m of object is kept constant
w α g
w(venus( is 0.8w

7 0
3 years ago
Read 2 more answers
If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:​
Stolb23 [73]

Answer:

32

Explanation:

the atomic mass is the number of protons and neutrons in the nucleus of an atom

so we will add 16 + 16 = 32

8 0
3 years ago
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