Answer:
Hello the options to your question is missing attached below are the missing options
- Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical
- The electric forces are equal in this case because both balloons had the same amount of electric charge
Answer :
Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical
Explanation:
The Balloons have the same amount of force exerted on them, because Electrical forces are symmetrical, The electric repulsion of the Balloons is equal because electric forces between two objects are always symmetrical, therefore the two Balloons are deflected to the same angle
Answer:
A 0.0 m/s
An object at rear is not moving so it is morning 0m every second.
We just set the the changes in Energy of the two Object equal to each other:
300g * 4.184J/g * (temperature(final)C - 22.3C) =
94.5g * 0.235 J/g *(temperature(final)C - 94.5C)
1255.2 J * (temperature(final)C - 22.3C)=
22.2075 J * (temperature(final)C - 94.5C)
1255.2 J * t(f) - 27990.96 JC=
22.2075 J * t(f) - 2098.60875JC
1232.9925 J* t(f) = 30089.56875 JC
temperature(final) = 24.4036916283 C° = 24.404 C°
The light bends around the edges of the slit B I think
Answer:
A) ΔU = 3.9 × 10^(10) J
B) v = 8420.75 m/s
Explanation:
We are given;
Potential Difference; V = 1.3 × 10^(9) V
Charge; Q = 30 C
A) Formula for change in energy of transferred charge is given as;
ΔU = QV
Plugging in the relevant values gives;
ΔU = 30 × 1.3 × 10^(9)
ΔU = 3.9 × 10^(10) J
B) We are told that this energy gotten above is used to accelerate a 1100 kg car from rest.
This means that the initial potential energy will be equal to the final kinetic energy since all the potential energy will be converted to kinetic energy.
Thus;
P.E = K.E
ΔU = ½mv²
Where v is final velocity.
Plugging in the relevant values;
3.9 × 10^(10) = ½ × 1100 × v²
v² = [7.8 × 10^(8)]/11
v² = 70909090.9090909
v = √70909090.9090909
v = 8420.75 m/s