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nadya68 [22]
3 years ago
5

A proton, moving north, enters a magnetic field. Because of this field, the proton curves downward. We may conclude that the mag

netic field must have a component: _______
a. upward.
b. towards the west.
c. towards the east.
d. towards the north.
e. downward.
Physics
1 answer:
PIT_PIT [208]3 years ago
4 0

Answer:

towards the west

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A 12 g plastic ball is dropped from a height of 2.5 m and is moving at 3.2 m/s just before it hits the floor. How much mechanica
Nataly [62]

Answer:

0.24

Explanation:

Mass of ball= 12g=0.012Kg

height of ball= 2.5m

velocity of ball before falling= 3.2m/s

potential energy of the ball=mgh= 0.012*10*2.5=0.3J

kinetic energy of the ball=0.5*mv^{2}=0.5*0.012*3.2*3.2=0.6J

Loss in mechanical energy during the fall= potential energy- Kinetic energy= 0.3-0.06=0.24J

note: During the fall, the potential energy of the ball is converted to kinetic energy. the loss in energy is due to air resistance.

4 0
3 years ago
Note: the 2 in the answers are exponents
stiks02 [169]

Final speed after collision with the wall

v_f = -0.4 m/s

before collision the speed of ball initially

v_i = 0.6 m/s

time taken for the collision

\Delta t = 0.2 s

now as per the formula of acceleration we know that

a = \frac{v_f - v_i}{\Delta t}

now plug in all values in it

a = \frac{-0.4 - 0.6}{0.2}

a = -5.0 m/s^2

so acceleration is - 5 m/s/s for above situation

4 0
3 years ago
According to Bohr each orbit an electron could travel in had a certain amount of ________ associated with it.
Lena [83]
The awnser to your problem would be a as in energy
6 0
3 years ago
If the distance between the two mass double what happens to the gravitational force
Kryger [21]

If the mass of both of the objects is doubled, then the force of gravity between them is quadrupled; and so on. Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.


4 0
3 years ago
5. A group of at
Sveta_85 [38]

Answer:

A group of atoms where the magnetic fields of the atoms point in the same direction is a magnetic domain.

Explanation:

  • In every magnet's magnetic field there is a region where the magnetization is in the same direction. This region is known as magnetic domain.
  • In the magnetic domain the atoms always points in the same magnetic filed direction.
  • All the atom's magnetic field align in one particular direction.
  • This region where atoms align is called as domains.
4 0
3 years ago
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