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Question 9 This question contains multiple parts. Make sure to read all the instructions and answer...
Marvin uses a long copper wire with resistivity 1.68 x 10-8. m and diameter 1.00 x...
Marvin uses a long copper wire with resistivity 1.68 x 10-8. 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 14.2 meters of wire to create the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part b Calculate how many turns are in the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part c A 3.00 Volt...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer...
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 10 This question contains multiple parts. Make sure to read all the instructions and answer...
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
For a technical application, an electrical engineer needs to create a solenoid using copper wire with...
For a technical application, an electrical engineer needs to create a solenoid using copper wire with diameter d 0.500 mm. The resistance of the solenoid needs to be 3.500 and the magnetic field of the solenoid with a current of 2.50 A should be 6.50 x 10-T. Assume the resistance does not change significantly with temperature, and the radius of the solenoid is 1.00 cm. (Use p - 1.70 x 10-40-m for the resistivity of copper.) (a) How many turns...
Question 16 This question contains multiple parts. Make sure to read all the instructions and answer...
Question 16 This question contains multiple parts. Make sure to read all the instructions and answer each part. A 20 kg child is sliding at 3 m/s across a frictionless frozen pond at -45 degrees relative to the x-axis, straight towards a dangerous hole in the ice. A physics professor is out for a stroll when she spots the child in peril and heroically launches herself across the ice at +30 degrees relative to the x-axis to intercept the child....
Question 15 This question contains multiple parts. Make sure to read all the instructions and answer...
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...
PLEASE SHOW STEP BY STEP WORK . NO SHORTCUT. 1. Calculate the ratio of the resistance...
PLEASE SHOW STEP BY STEP WORK . NO SHORTCUT. 1. Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.1 mm in diameter, to 23.0 m of copper wire 1.8 mm in diameter. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m. PART A: Determine at what temperature aluminum will have the same resistivity as tungsten does at 24 ∘C. PART B: An electric car uses a 80-kW motor. If the battery pack...
Question 6 This question contains multiple parts. Make sure to read all the instructions and answer...
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...
Question 13 This question contains multiple parts. Make sure to read all the instructions and answer...
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...
A 14.0-m length of wire consists of 6.0 m of copper followed by 8.0 m of...
A 14.0-m length of wire consists of 6.0 m of copper followed by 8.0 m of aluminum, both of diameter 1.1 mm . A voltage difference of 95 mV is placed across the composite wire. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m. Part A) What is the total resistance (sum) of the two wires? Express your answer to two significant figures and include the appropriate units. Part B) What is the current through the...
Marvin uses a long copper wire with resistivity 1.68 x 10-8. 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 14.2 meters of wire to create the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part b Calculate how many turns are in the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part c A 3.00 Volt...
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 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
For a technical application, an electrical engineer needs to create a solenoid using copper wire with diameter d 0.500 mm. The resistance of the solenoid needs to be 3.500 and the magnetic field of the solenoid with a current of 2.50 A should be 6.50 x 10-T. Assume the resistance does not change significantly with temperature, and the radius of the solenoid is 1.00 cm. (Use p - 1.70 x 10-40-m for the resistivity of copper.) (a) How many turns...
Question 16 This question contains multiple parts. Make sure to read all the instructions and answer each part. A 20 kg child is sliding at 3 m/s across a frictionless frozen pond at -45 degrees relative to the x-axis, straight towards a dangerous hole in the ice. A physics professor is out for a stroll when she spots the child in peril and heroically launches herself across the ice at +30 degrees relative to the x-axis to intercept the child....
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 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...
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...
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