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strojnjashka [21]
2 years ago
15

please help with questions

Physics
1 answer:
kaheart [24]2 years ago
3 0

Answer:

Please selection one of the following

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A metal block has a mass of 5 grams and a volume of 1 cm3. What is the density of a piece of the same identical metal but with a
Fynjy0 [20]

Answer:

ρ = Mass / Volume     definition of density

ρ  = 5 g / 1cm^3 = 5 g / cm^3

Since the other object is made of the same metal its density is the same:

ρ = 5 g/cm^3

6 0
2 years ago
A satellite with a mass of 2,000 ㎏ is inserted into an orbit that is twice the Earth' s radius. W hat is the force of gravity on
dolphi86 [110]

Answer:

option (b) 4900 N

Explanation:

m = 2000 kg, R = 6380 km = 6380 x 10^3 m, Me = 5.98 x 10^24 kg, h = R

F = G Me x m / (R + h)^2

F = G Me x m / 2R^2

F = 6.67 x 10^-11 x 5.98 x 10^24 x 2000 / (2 x 6380 x 10^3)^2

F = 4900 N

4 0
3 years ago
HEEELLPPPP ME LLELLLLEEAASEEEEEEEEEEEE
irina [24]

Answer:

Valley-river Landslide-Gravity Frost wedging- Glacier Canyon-Ice.

Explanation:

I think that's right

4 0
3 years ago
What will happen to the mass and volume of a block if their is two blocks, three, blocks or four blocks? For example, if the mas
Crazy boy [7]
To solve this problem, it would be helpful to know the density of 1 block Density is defined as the mass of the substance per volume. From the example given, The density of the block is (7g)/(15.625 units^3) or 0.448 g/units^3. So, if a block is added, the new mass is 7g + 7g = 14 g And the volume 14 g /(density) = 1 unit^3
7 0
3 years ago
What material reduces thermal energy
expeople1 [14]

Answer:

Insulation helps to prevent that transfer of heat.

3 0
3 years ago
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