Which statement applies only to electric force instead of both electric and magnetic

Find the net force produced by a 6 N and an 8 N when acting in same

tankabanditka [31]

Answer:

14 newtons is the answer

Explanation:

because if they act in the same direction they are added together

5 0

2 years ago

Read 2 more answers

The more cores in a golf ball, the more ________ that will be created.

Free_Kalibri [48]

The answer is spin.

The more cores in a golf ball, the more spin that will be created.

Depending on how many layers or cores there are in a golf ball, the number of spins that it will generate when a shot is made increases accordingly.

8 0

3 years ago

A 2.0kg rocket is traveling straight up. What force muse be applied to the rocket for it to move at a constant velocity?

Yuliya22 [10]

A equal force it always has to be equal

5 0

3 years ago

Which of the following statements are true about Electric Force, Electric Field, Electric Potential and Electric Potential Energ

JulsSmile [24]

Answer:

(ii) The Electric Field reports the Electric Force on a 1C test charge placed at a particular location.

(iii) The Electric Potential reports the Electric Potential energy of a 1C test charge place at a particular location.

(iv) The spatial derivative of the electric potential at a particular location reports the electric field at that location.

ii, iii and iv are true.

Explanation:

Electric force per unit charge is the electric field. It is a vector. E = F/q.

Electric potential is the electric potential energy per unit charge and is a scalar quantity, like the electric potential. V = U/q where U is the electric potential energy and q the charge.

Electric field exists due to a difference of potential, between two different points.E =dV/dx .

3 0

3 years ago

An automobile tire is filled to a gauge pressure of 200 kPa when its temperature is (Gauge pressure is the difference between th

Elena L [17]

This question is incomplete, the complete question is;

An automobile tire is filled to a gauge pressure of 200 kPa when its temperature is 20°C (Gauge pressure is the difference between the actual pressure and atmospheric pressure.)

After the car has been driven at high speeds, the tire temperature increases to 55°C

(a) Assuming that the volume of the tire does not change and that air behaves as an ideal gas, find the gauge pressure of the air in the tire. (kPa)

(b) Calculate the gauge pressure if the tire expands so the volume of the enclosed air increases by 10 percent. (kPa)

Answer:

a) the gauge pressure of the air in the tire is 236 kPa

b) the gauge pressure if the tire expands so the volume of the enclosed air increases by 10 percent is 205.33 kPa

Explanation:

Given the data in the question;

Gauge pressure at 20°C = 200 kPa

Absolute pressure at 20°C is; p = 200 + 101.3 = 301.3 kPa

Initial temperature T = 20°C = 20 + 273 = 293 k

Final temperature T" = 55°C = 55 + 273 = 328 K

Now, at constant volume, P"/P = T"/T

P"T = PT"

P" = PT" / T

we substitute

P" = ( 301.3 × 328 ) / 293

P" = 98826.4 / 293

P" = 337.29

so Gauge pressure at 55°C is;

⇒ P" - 101.3

⇒ 337.29 - 101.3 = 235.99 ≈ 236 kPa

Therefore, the gauge pressure of the air in the tire is 236 kPa

b)

Final Volume V'' = V + 10% of V

V" = V + 0.1V

V" = 1.1V

we know that;

P"V"/T" = PV/T

P" = P (T"/T)(V/V")

we substitute

P" = 301.3 (328 /293 )(V/1.1×V)

P" = × 1/1.1 × V/V

P" = 337.29 × 1/1.1

P" = 306.628 kPa

so, absolute pressure at 55°C = 306.628 - 101.3 = 205.33 kPa

Therefore, the gauge pressure if the tire expands so the volume of the enclosed air increases by 10 percent is 205.33 kPa

5 0

3 years ago