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- To recharge a 12 V battery, a battery chargermust move 4 × 105 C of charge from the negative terminal to the positive terminal.How much work is done by the batterycharger?Answer in units of J.This homework problem is giving me some issues, help would be greatly appreciated! Thanks!Question 6 A body of mass 25kg falls on the ground from a height of 19.6m. The body penetrates into the ground. Assume the resistance by the ground to penetrate is constant and equal to 4998N. Take = 9.8m/s². А. Find the final velocity of the body just before it hits the ground. В. Calculate the retardation (acceleration) when the body is penetrating the ground. С. Find the distance through which the body will penetrate into the ground.
- 261.3 Ohmmeter: In order to use the basic meter as an ohmmeter, a variable resistor and a DC voltage source, for example a battery, should be connected in series to the meter. The connection diagram is given in Fig. 3. The resistor to be measured is connected between terminals a and b. Ry max 1 mA Rm A + a Rx Figure 3. . VDC 9Figure 1.30 For Prob. 1.19. 1.20 Find V, in the circuit of Fig. 1.31. 10 = 2 A 30 V 6 A 1 + 6 A Figure 1.31 For Prob. 1.20. 12 V + 3 A + Vo 1 A + 28. V + 28 V +1 + 6 V 510 3 A
- QUESTION 8 Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties I = 2.4 Amps, 81 = 0.2 Amps and R = 29.5 Ohms and SR = 0.6 Ohms. What is the uncertainty in %3! %3D the , SV ? Units are not needed in your answer.What are the expected readings of the following[ ideal ammeter (Give your answer in mA.) Jin the figure below? (R = 6.20 Q, AV= 6.50 V) %3D R Δν 10.0 N 5.00 N R 4.50 VThe energy needed to run an electric circuit can be expressed by E=IVt, where I is the electric current in the circuit, V is the voltage across the circuit, and t is the amount of time that it runs. How much time would it take a 2000 kg electric car to go from rest to a speed of 35 m/s if the electric motor runs on 375 V and the system uses 628 Amps of current while accelerating? Note for formula: I is uppercase i.