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Solve the given problem:
Problem: A 40-mH ideal inductor is connected in series with a 68-Ω resistor through an ideal 16-V DC power supply and an open switch. If the switch is closed at time t = 0 s, what is the current 7.0 ms later?
Show all work, use additional paper if necessary.
A point source emits 26.2 W of sound isotropically. A small microphone intercepts the sound in an area of 0.121 cm2, determine the power intercepted by the microphone
An object starts from rest at t= 2 s at an initial position of x = 7.2 m and moves with constant acceleration. What is the magnitude of the acceleration of the object
What plate separation is required for a parallel plate.
A block of mass m = 2.00 kg is dropped from height h = 90 cm onto the spring of spring constant k = 1960 N/m. Find out the maximum distance the spring is compressed.
The speed of light in material A is 1.4 times as large as it is inmaterial B. What is the ratio of the refractive indices ,nA/nB, of these materials
A man sitting in a bosun's chair that dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. The combined mass of the man and chair is 86 kg. With what force magnitude should the man pull on ..
Two wheels have the same mass and radius of 4.1 kg and 0.38 m, respectively. Find the net external torque that acts on each wheel
A converging lens with a focal length of 92.0 cm forms an image of 32.0 cm tall real object that is to the left of the lens. The image is 4.60 cm tall and inverted. Where are the object and image located in relation to the lens? Is the image real or ..
A reflecting telescope has a main mirror with fM = 540 mm. If an eyepiece with a magnification of 5 is used, what is the total magnification of the telescope
Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 3.00 A for 5.00 h is rated at 15.00 A · h.
A proton of mass (m) moving with a speed of 3.0x 10^6 m/s undergoes a head-on elastic collision with an alpha particle of mass (4m), What are the velocities of the two particles after the collision
What is the net torque about the origin on a flea located at coordinates (0 m,-8 m, 4 m) when forces F1 = ( 3 N) k and F2 = (-2 N) j act on the flea? i-component of torque?
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