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lilavasa [31]
3 years ago
11

HELP ASAP

Physics
1 answer:
velikii [3]3 years ago
5 0

Answer:

A. negatively charged are deposited on the belt, which deposits positive charges on the metal ball.

Explanation:

Negatively charged ions are injected at one end of thebelt towards the high potntial terminal, where they are acclerated by attractive forces towards the terminal. When the particles reach the terminal, they are stripped of some electrons to make them positively charged.

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True or False: If your gas pedal jams, you should turn the key to lock to lock the steering wheel.
Bond [772]

Answer:False

Explanation:

Turn the key to lock is not advisable as it lock the steering wheel and may create a dangerous situation.

Following steps can be taken in this situation

  • Try to press the brake to stop the vehicle
  • Shift gear to neutral in order to cease the acceleration of car.
  • Try to lift the gas pedal in order to decrease the velocity of car.
5 0
3 years ago
Read 2 more answers
Pronouns in the nominative case may function as __________.
tresset_1 [31]

Pronouns in the nominative case may function as Subjects.

Like

We went to the game.
You played the game.
He/she/they watched the game.

8 0
3 years ago
A bar magnet is cut in half, as shown.
Feliz [49]

Answer:

NS/NS

Explanation:

If we cut a bar magnet in half pieces according to the image that is given below the question, then the magnet will show NS/NS that is (North-South/North-South) because the smaller pieces of the magnet will become a small magnet with the same property-carrying both the poles, north pole as well as south pole. The poles will not be separated.

5 0
4 years ago
Read 2 more answers
A 5.0 V battery storing 43.0 kJ of energy supplies 1.5 A of current to a circuit. How much energy does the battery have left aft
Free_Kalibri [48]

Answer:

B. 16 kJ

Explanation:

Energy = VIt.............. Equation 1

Where V = Voltage, I = Current, t = time

Given: V = 5.0 V, I = 1.5 A, t = 1 h = 3600 s.

Substitute these values into equation 2

E = 5.0(1.5)(3600)

E = 27000 J

E = 27 kJ.

Amount of energy left = 43 kJ - 27 kJ

Amount of energy left = 16 kJ.

Hence the right option is B. 16 kJ

3 0
3 years ago
A .183 kg ball is moving 18.8 m/s when it runs into a spring of spring constant 86.9 N/m. How much KE does the ball have when it
Lemur [1.5K]

Answer:

The value is  KE_B  = 20.59 \  J

Explanation:

From the question we are told that

   The mass of the ball is  m  =  183 \  kg

   The initial  speed of the ball is  u  =  18.8 \  m/s

    The spring constant is  k  =  86.9 \ N/m

     The compression distance is  x =  0.520 \ m

Generally the energy stored in the string is mathematically represented as

        E =  \frac{1}{2}  *  k  * x^2

=>     E =  \frac{1}{2}  *  86.9  * 0.520 ^2

=>      E =   11.75 \  J

Generally the kinetic energy of the ball is mathematically represented as

          KE_b  =  \frac{1}{2} * m * u^2

=>      KE_b  =  \frac{1}{2}  *  0.183 * (18.8 )^2

        KE_b  = 32.34 \  J

Generally the KE   the ball have when it has compressed the spring is mathematically represented as

          KE_B  =  KE_b -  E

=>        KE_B  =  32.34 - 11.75

=>        KE_B  = 20.59 \  J

7 0
3 years ago
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