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You need to build an ammeter that can measure up to 0.5 A. You are given a galvanometer that reads 75 A at its full-scale deflection, and are told that this galvanometer has an internal resistance o
Suppose you wish to make a solenoid whose self-inductance is 1.5 mH. The inductor is to have a cross-sectional area of 1.6 x 10-3 m2 and a length of 0.073 m. How many turns of wire are needed? Please
What is the quantity corresponding to the area under the curve (the induced voltage multiplied by its respective time interval)? Hint: rearrange the equation representing Faraday's law.
A neon sign uses a step up transformer with a turns ratio of 50. the sign is plugged into a standard wall outlet at 120V. what voltage gets supplied to the sign?
A particular satellite was placed in a circular orbit about 145 mi above Earth. (a) Determine the orbital speed of the satellite. (b) Determine the time required for one complete revolution.
A sample of blood is placed in a centrifuge of radius 12.0 cm. The mass of a red blood cell is 3.0 10?16 kg, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 x 10-1
A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 34.0 m/s. With what maximum speed can it go around a curve having a radius of 65.0 m?
Light rays in a material with index of refrection 1.25 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material
The core of an optical fiber has an index of refraction of 1.29, while the index of refraction of the cladding surrounding the core is 1.19. What is the critical angle for total internal reflection
A light beam is traveling through an unknown substance. When it exits that substance and goes into air, the angle of reflection is 35.0° and the angle of refraction is 48.0°. What is the in
In order to help identify this material, you determine its index of refraction by measuring the angles of incidence and refraction for which you find the values 40.1° and 36.3°, respectively
The ray from the laser strikes the mirror 67.9 cm from the wall, and the reflected ray strikes the wall 34.9 cm above the mirror. Find the angle of incidence of the laser ray on the mirror.
Ball B is hanging from an inextensible cord. An identical ball A is released from rest when it is just touching the cord and drops through the vertical distance hA = 200mm before striking ball B. As
1. Perfectly spherical raindrops with a diameter of 2 mm are falling through a deep layer of atmosphere. There are 1000 such raindrops evenly distributed in every m3 of air. a. What is the terminal
Ignoring the thickness of the blades, find the minimum linear speed with which the ball moves along the ground, such that the ball will not be hit by the next blade.
Eight uncharged capacitors with equal capacitances are combined in series. The combination is connected to a 7.45-V battery, which charges the capacitors. The charging process involves 2.37 ×
Suppose our experimenter repeats his experiment on a planet more massive than Earth, where the acceleration due to gravity is . When he releases the ball from chin height without giving it a push, h
Blocks with masses of 1kg , 3kg , and 5kg are lined up in a row on a frictionless table. All three are pushed forward by a 57N force applied to the 1kg block. A)? B) How much force does the 3kg bloc
An electric motor rotating a workshop grinding wheel at a rate of 9.80 x 101 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.20 rad/s2. (a) How l
A centrifuge in a medical laboratory rotates at an angular speed of 3,550 rev/min. When switched off, it rotates through 46.0 revolutions before coming to rest. Find the constant angular acceleratio
A dentist's drill starts from rest. After 2.50 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min. (a) Find the drill's angular acceleration. (b) Determine the angle (in radian
A singly ionized oxygen atom moves at 9000m/s in a circular path perpendicular to a 0.85T magnetic field. Find the radius and period of its circular motion. Part A) Find the radius of its circular