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marshall27 [118]
4 years ago
8

what happens when tectonic plates move away from each other? A.molten matter cools and sinks towards the core B. lava travels wa

y from the crust and forms the mantle C. molten matter seeps through crust and forms new land D. lava seeps into ground and cracks the ground
Physics
1 answer:
Allisa [31]4 years ago
3 0

Answer:

i would say C

Explanation:

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If you cannot exert enough force to loosen a bolt with a wrench, which of the following should you do?
stepan [7]

Answer:

2.) Use a wrench with a longer handle.

Explanation:

It is suggested to use a wrench with longer handle if you cannot exert enough force to loosen a bolt with a wrench.

In doing this work, the torque which is the force that can turn the screw is not enough;

      Torque  = force x distance

If we increase the distance or the length of the handle, we can generate more torque to overcome the force needed.

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3 years ago
Hydraulic press is a force multiplier . show mathematically
Vadim26 [7]
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5 0
4 years ago
what is the desnity of a material that has 2500 grams and a volume of 500 cubic centimeters in grams per cubic centimeter
Ann [662]
Divide 2500 g by 500 cc. The quotient is 5 g/cc ... the density.
4 0
4 years ago
How are electrical charges similar to magnets?
earnstyle [38]

Answer:

The two types of forces are related; a moving magnet can make electrical charges move, cause an electric current, and in turn cause magnetism. ... Objects that have the same charge, both positive or both negative, repel each other, and those with opposite charges attract each other.

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5 0
3 years ago
object of mass m=2.6 kg is dropped from rest at a height of h above a massless spring with spring constant k=494.3 N/m that is i
tekilochka [14]

Answer:

3.56 m

Explanation:

As the object falls from height h, and then compresses the spring a distance of 0.66m, its initial potential energy is converted into elastics energy of the spring.  

Let g = 9.81m/s2. Knowing that the total change in potential height is h + d, we have the following equation

E_p = E_s

mg(h + d) = kd^2/2

2.6*9.81(h + 0.66) = 494.3*0.66^2/2

h + 0.66 = 4.22

h = 4.22 - 0.66 = 3.56 m

3 0
3 years ago
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