4. A 70.0 kg student is running at 4.0 m/s. The student jumps and grabs a rope hanging at 3.0 m from the ground without slowing down. Using the principle of energy conservation and neglecting air resistance, how high above the ground will the student swing? (g=10m/s?) a. 3.0m b. 2.7m 3.8m d. 4.1m 5. Which of the following is a valid way to measure wavelength? a. Crest to crest b. Node to crest C. Node to node d. Crest to trough 6. A Tesla roadster has a parallel circuit on the inside. The total current is 28 A and it has 2 resistors as shown. What is the voltage of the Tesla roadster? a. 23v b. 34v I = 28 A C. 120v d. 210v R = 20 R = 30 V = ?V