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Anna [14]
3 years ago
5

PLEASE HELP!!

Physics
1 answer:
zhuklara [117]3 years ago
5 0

Answer:

Sample Starting Temperature Ending Temperature Change in Temperature

50 g sand      

50 g water      

100 g water      

Explanation:

Its

20C

32C

46C

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Causing a collision while speeding puts points on your license
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Yes, I believe it will put points on your license. I think in some cases you will get your license revoked
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3 years ago
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Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.
serg [7]

Explanation:

The given data is as follows.

          Electric field (E) = 1 \times 10^{7} N/C

          Charge (e) = 1.6 \times 10^{-19} C

Formula to calculate the magnitude of force is as follows.

                F = qE

                   = 1.6 \times 10^{-19} \times 1 \times 10^{7} N/C

                   = 1.6 \times 10^{-12} N

Therefore, we can conclude that magnitude of the force on a calcium ion with charge +e is  1.6 \times 10^{-12} N.

6 0
3 years ago
1. Is there a relationship between the volume of water displaced and the total volume of the block that has anything to do with
strojnjashka [21]

Answer:

The volume of the block is equal to the volume of water displaced by the block.

Explanation:

Volume refers to the amount of space occupied by a given object (in this case the block). When an object such as the block is immersed in water, it displaces its own volume of water. This volume of water displaced is equal to the volume of the block. Hence we can write;

Final Volume of water - Initial Volume of water= Water Displaced = Volume of the block

Recall that the density of a body is given by;

Density= mass/volume

If we obtain the volume of the block by measuring the volume of water displaced by the block, then we weigh the block using a weighing balance, we can obtain the density of the block easily from the relationship shown above.

8 0
3 years ago
Why would a baseball traveling at 20 m/s have more kinetic energy than a baseball traveling at 5 m/s?
bagirrra123 [75]

Answer:

because formula of kinetic energy is K=1/2mv^2 that means more the velocity then more kinetic energy

5 0
3 years ago
In his experiments on "cathode rays" during which he discovered the electron, J.J. Thomson showed that the same beam deflections
Andrews [41]

Answer:

A) his observation is of little importance ,

B) This observation is very important since the movement of the point of light depends on the relationship between the already magnetic electric force

C)   see that in this second case it is 4 times less  

D) the force of gravity is of the order of 10⁻⁴⁰

therefore it is 10²⁸ times less than the electric force,

Explanation:

A) This observation is of little importance since the cacodylate ray tube always emits electrons, regardless of the material of which it is made.

B) This observation is very important since the movement of the point of light depends on the relationship between the already magnetic electric force

C) the elect's load is 1.6 10⁻¹⁹ C its mass is 9.1 10⁻³¹ kg, let's look for its relation

        e / m = 1.6 10⁻¹⁹ / 9.1 10⁻³¹

         e / m = 0.1 758 10 10¹² N

look for this in the case of an atom, let's use the lightest atom hydrogen

the homogenize have an electron of charge 1.6 10⁻¹⁹ C

and a mass of 1.6735575 10⁻²⁷ ka

        e / M = 1.6 10⁻⁻¹⁹ / 1.67 10⁻²⁷

       e / M = 0.96 10⁸ N

We see that in this second case it is 4 times less

D) the force of gravity is of the order of 10⁻⁴⁰

therefore it is 10²⁸ times less than the electric force, therefore it should not contribute to the movement of the light beam

8 0
3 years ago
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