Question 7 This question contains multiple parts. Make sure to read all the instructions and answer...
Consider two boxes of masses, m and 2m, both initially at rest. You push each box separately with a force, F, over a distance, d, across a frictionless surface. How does the final speed of the smaller box compare to the final speed of the larger box? a. The speed of the smaller box is half that of the larger box b. The speed of the smaller box is 4 times that of the larger box c. The speed of the...
Question 10 This question contains multiple parts. Make sure to read all the instructions and answer each part Part a What will happen to the period of a ball-on-a-spring if the ball is replaced by a smaller one with half the mass? Select the correct answer O Period stays the same O Period is halved Period decreases by 29% Period is doubled Your Answer Period increases by 41% CHECK ANSWER 1 of 2 attempts used LAST ATTEMPT
Question 13 This question contains multiple parts. Make sure to read all the instructions and answer each part Consider a round parallel plate capacitor consisting of two circular metal plates of radius, R-1.0 cm, separated by d = 150 μm of air. The capacitor is connected to a potential source, as shown in the figure below. Part a Calculate the capacitance of this capacitor in picoFarads? (1pF 10-12 F) Part b If the potential source has a voltage of Vo...
Question 15 This question contains multiple parts. Make sure to read all the instructions and answer each part. An electron is confined in a box of length 0.10nm. Part a What is the wavelength of photons emitted when the electron transitions from an n 3 to an n-2 energy state? Enter answer here nm 1 nm Answer of 4 attempts used Part b What is the wavelength of photons emitted when the electron transitions from an n-4 to an n...
Question 15 This question contains multiple parts. Make sure to read all the instructions and answer each part THIS IS A BONUS QUESTION Consider a ball of mass m attached to a spring of stiffness k, oscillating with amplitude A on a frictionless horizontal surface. Part a At what displacement from equilibrium does the system have equal quantities of kinetic and potential energy? Select the correct answer Part b At what displacement from equilibrium does the ball have half its...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer each part The figure below shows the overall acceleration vector for a particle moving clockwise in a circle of radius r = 1.25m at a certain instant in time. The magnitude of the acceleration vector is a 25.3m/s2 Image size: sML Max 30.0 (1 points) Part a At that instant, find the tangential acceleration of the particle. Please enter a numerical answer below. Accepted...
Question 12 This question contains multiple parts. Make sure to read all the instructions and answer each part. Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. His mass is 75.1kg and the vine is 4.07m long. Image size: s ML Max Part a (1 points) If his arms are capable of exerting a force of 1400 N on the rope, what is the maximum speed he can tolerate at the lowest point of...
Question 12 This question contains multiple parts. Make sure to read all the instructions and answer each part. Tarzan plans to cross a gorge by swinging in an arc from a hanging vine. His mass is 75.8kg and the vine is 3.64m long. Image size: sML Max Part a (1 points) If his arms are capable of exerting a force of 1400 N on the rope, what is the maximum speed he can tolerate at the lowest point of his...
Question 9 This question contains multiple parts. Make sure to read all the instructions and answer each part Marvin uses a long copper wire with resistivity 1.68 x 10-8Ω . m and diameter 1.00 x 10-3 m to create a solenoid that has a 3.00 cm radius. Part a Calculate the total resistance if Marvin uses 12.6 meters of wire to create the solenoid Enter answer here S2 0.222X Answer Your 1 of 10 attempts used CHECK ANSWER Part b...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer each part. Part a What is the derivative of f(x, t) = A sin (kx + wt) with respect to time (t)? Select the correct answer df = Aw sin(kx + at) A cos(kx +wt) 0 4 = Ak sin(kx + wt) 0 4 = Aw cos(kx + wt) Part b What is the second derivative of f(x,t)-A sin(ka+ ut) with respect to space...