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A light ray propagates in a material with index of refraction 1.21, strikes an interface, and passes into a material whose index of refraction is 1.35. The angle of incidence at the interface is 42.
The ray from the laser strikes the mirror 35.5 cm from the wall, and the reflected ray strikes the wall 37.5 cm above the mirror. Find the angle of incidence of the laser ray on the mirror.
Four point charges have the same magnitude of 3.2 × 10-12 C and are fixed to the corners of a square that is 6.8 cm on a side. Three of the charges are positive and one is negative. Determine
Determine the density of an unknown gas used to fill a 2.0g balloon to a volume of 4.0L if the balloon floats at equilibrium of the air.
A moth at about eye level is 12 cm in front of a plane mirror; you are behind the moth, 34 cm from the mirror. What is the distance between your eyes and the apparent position of the moth's image i
A 28kg suitcase is being pulled with constant speed by a handle that is at an angle of 30^\circ above the horizontal. If the normal force exerted on the suitcase is 180N , what is the force {F} appl
What is the angular separation between the red and violet components of the spectrum that emerges from the glass?
An elevator (cabin mass 530 kg) is designed for a maximum load of 3300 kg, and to reach a velocity of 3.5 m/s in 3 s. For this scenario, what is the tension the elevator rope has to withstand?
To suck lemonade of density 986 kg/m3 up a straw to a maximum height of 3.82 cm, what minimum gauge pressure (in atmospheres) must you produce in your lungs?
The starter motor of a car engine draws a current of 170A from the battery. The copper wire to the motor is 4.0mm in diameter and 1.2m long. The starter motor runs for 0.90s until the car engine sta
A concave mirror used by a person who is shaving or applying makeup creates a virtual image of the face that is 1.50 times larger than the person's actual face when the face is 12.0 cm from the mirr
Use ray tracing to find the position of its lamp when the patient is positioned 1.1 m from the mirror (you'll need a careful drawing to get a good answer).
Suppose he looks at a 11-cm-long pencil held vertically 1.0 m from his glasses. Use ray tracing to determine the location and height of the image.
(a) What is the radius R of curvature of the convex surface of the lens? Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step care
If the radius of the equipotential surface of a point charge is 23.0m and is at a potential of +1.30kV (compared to zero at infinity), what are the magnitude and sign of the point charge?
Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2. If M1 = 1.57kg, M2 = 3.26kg, and F = 5.95N, find the size of the contact force between the two blocks.
What is the capacitance of capacitor B? Please note that for water, the latent heat of fusion is Lf = 33.5 x 104 J/kg, and the latent heat of vaporization is Lv = 22.6 x 105 J/kg
A compact disc spins at 2.2 revolutions per second. An ant is walking on the CD and finds that it just begins to slide off the CD when it reaches a point 2.9 cm from the CD's center. (a) What is the
A particle moves along the x axis. It is initially at the position 0.180 m, moving with velocity 0.100 m/s and acceleration -0.300 m/s2. Suppose it moves with constant acceleration for 4.30 s. (a)
(a) The potential on the outer surface of the membrane is +75.9 mV greater than that on the inside surface. How much charge resides on the outer surface? (b) If the charge in part (a) is due to K+ i
A bicycle wheel of radius 0.30 m is spinning at a rate of 60 revolutions per minute. What is the centripetal acceleration of a point that is 0.13 m from the outer edge of the wheel?
The potential difference between any two successive surfaces is 1.05 x 103 V. Starting at a distance of 1.85 m and moving radially outward, how many of the additional equipotential surfaces are cross
Stan accelerates from a standing start at 2 m/s2 and one second later Kathy accelerates from a standing start at the same position at 4 m/s2. (a) How long does it take Kathy to catch Stan? (b) What
A 16.0-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are 0.880 and 0.640, respectively.
A 2.1mm -diameter glass bead is positively charged. The potential difference between a point 2.5mm from the bead and a point 4.5mm from the bead is 500 V. What is the charge on the bead?