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A dipole with a positive charge of 3.0uC and a negative charge of -3.0uC is centered at the origin and oriented along the x axis with the positive charge located to the right of the origin. The char
Objects measure with masses m1=10.0 kg and m2=5.00 kg are connected by a light string that passes over a frictionless pulley. If, when the system starts from rest, m2 falls 1.0 m in 1.20 s, determin
Steam at 100 degree C is bubbled into 0.230 kg of water at 28 degree C in a calorimeter cup, where it condenses into liquid form. How much steam will have been added when the water in the cup reache
To decrease the body temperature of a 73 kg person by 1.0 degree C, what mass of alcohol must be evaporated from person's skin? Ignore the heat involved in raising the temperature of alcohol to its
Assume that all the power delivered to the wires is used immediately to melt the ice. Find the cross-sectional area of each wire?
A cylindrical copper cable carries a current of 1200 A. There is a potential difference of 1.6*10^-2 V between two points on the cable that are 0.24 m apart. What is the radius of the cable?
An insulated beaker with negligible mass contains liquid water with a mass of 0.205kg and a temerature of 67.1 degree C. How much ice at a temperature of -14 degrre C must be drop into the water so
A glass plate whose index of refraction is 1.62 is immersed in a liquid. The surface of the glass is inclined at an angle of 37° with the vertical. A horizontal ray in the glass is incident on t
Your 2.25kg physics book rest on a horizontal tabletop. a) find the normal force on the book b) suppose you pull up on the book with a 15.0 N force. Now what's the normal force?
Suppose you apply the brakes and do not turn the steering wheel. Find the minimum distance you must be from the wall to avoid a collision
A 1.5 kg mass is shot straight up with an initial speed of 3 m/s. What is the kinetic energy of the mass when it is launched, how much work does the gravitational force do on the mass during its acc
what is the kinetic energy of the rock as it reaches the bottom of the hill, and what is its speed?
(a) At what angle, measured relative to the direction of flow of the river, must the boat be pointed in order to travel in a straight line and land in the clearing on the north bank? (b) How long wi
After flying for 13 min in a wind blowing 44 km/h at an angle of 18° south of east, an airplane pilot is over a town that is 52 km due north of the starting point. What is the speed of the airpl
A 3.33 kΩ resistor is connected to a generator with a maximum voltage of 151 V. A). Find the average power delivered to this circuit. Answer in W.
An rms voltage of 100 V produces a maximum current of 3.0 A in a certain resistor. Find the resistance of this resistor. Answer in Ω. Please show your work!
A 0.20 A current is charging a capacitor that has circular plates 10.0 cm in radius. Explain your reasoning for the key steps when you find: (a) the time rate of increase of the electric field betwe
Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 210 N and a coefficient of kinetic friction on snow of 0.14. Unfortunately, the skis run out
A 844-kg wrecking ball hangs from the end of a crane by a 38.7 m cable. If the crane operator quickly moves the end of the crane 3.84 m to the left, how many seconds pass before the wrecking ball pa
The pendulum consists of a uniform disk with radius 9.3 cm and mass 456 g attached to a uniform rod with length 46 cm and mass 222 g. The rod is attached to the edge of the disk and rotates around
A model airplane is flying on a 14-m guideline in a horizontal circle. The guideline is parallel to the ground. Find the speed of the plane such that the plane and the satellite have the same centri
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.75x10^4 m/s, and the radius of the orbit is 5.15x10^6 m. A second satellite also has a circular orbit arou
Two banked curves have the same radius. Curve A is banked at an angle of 15°, and curve B is banked at an angle of 21°. A car can travel around curve A without relying on friction at a speed
A 0.012-kg ball is shot from the plunger of a pinball machine. Because of a centripetal force of 0.023 N, the ball follows a circular arc whose radius is 0.24 m. What is the speed of the ball?
A 0.1 lb golf ball is struck by a club and leaves the tee at an angle of 30 degrees. The ball then travels 500 ft before striking the ground on a horizontal plane with the tee. What is the average i