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A rectangular block of ice 13 m on each side and 1.4 m thick floats in sea water. How high does the top of the ice block float above the water level?
A cube of ice is taken from the freezer at -9.3°C and placed in a 101 g aluminum calorimeter filled with 314 g of water at room temperature of 20°C. The final situation is observed to be al
A battery having an emf of 10.20 V delivers 115 mA when connected to a 74.0 load. Determine the internal resistance of the battery.
A car is driven 145 km west and then 75 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)
Pass through a circular opening with diameter d = 0.06 mm. According to the Rayleigh criterion, what must be the minimum angle between the two objects?
A 2cm cub of Fe (density = 7860kg/m3) is suspended by a thread and submerged in water so that the bottom of the cube is 5cm below the surface. What is the absolute pressure in Pa at the bottom of th
What single experimental requirement makes superconducting devices expensive to operate? In principle, can this limitation be overcome?
Direction of 30 degree north of east then it flies 150 km 20 degree west of north to point B finally it flies 195 km due west to point C. find the location of C from the origin.
A woman exerts a force of 500 N straight up to lift a 35 kg basket. What is the acceleration of the basket?
A car moving with an initial velocity of 24 m/s slows down at a constant rate of -2 m/s^2 for 3 seconds What distance does the car cover in this time?
When the can and the liquid are heated to 78 °C, 9.5 × 10-6 m3 of liquid spills over. What is the coefficient of volume expansion of the liquid?
When the connection is made, the wires are pushed aside by the repulsive force between the wires, and each wire has an initial horizontal velocity of magnitude v_0. Assume that the time for the capa
What are sunspots and how are they related to the Sun's magnetic field? Is the magnetic field stronger weaker in sunspots?
A 95-kg water skier floating in a lake is pulled from rest to a speed of 13 m/s in a distance of 30 m. What is the net force exerted on the skier, assuming his acceleration is constant?
The length of a string is 462 cm. It is held fixed at each end. The string vibrates in seven sections; i.e., the string has seven antinodes, and the string vibrates at 110 Hz.
When both pipes vibrate at their fundamental frequencies, a beat frequency of 12 Hz is heard. Calculate how many centimetres were cut off the end of the second pipe.
A bucket of mass 1.80 is whirled in a vertical circle of radius 1.30 . At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket. How f
An Earth satellite moves in a circular orbit 557 km above Earth's surface with a period of 95.59 min. What are (a) the speed and (b) the magnitude of the centripetal acceleration of the satellite?
Unfortunately, the motorcycle engine dies just as he starts up the ramp. He is going 11 [m/s] at that instant, and the rolling friction of his rubber tires is not negligible. Does he survive or is h
Two spherical shells have a common center. A -3.00 x10-6 C charge is spread uniformly over the inner shell, which has a radius of 0.050 m. A +6.00 x10-6 C charge is spread uniformly over the outer s
The unit vectors along the cartesian coordinate axes') in units of Tesla. Calculate the y-component of the magnetic force acting on a segment of wire of length L = 18.0 cm.
What is the kinetic energy of the cam-shaft combination when it is rotating with angular speed ω about the shaft's axis?
The bottom of an inclined plane. If the angular velocity of the disk is 5.35 rad/s at the bottom, what is the height of the inclined plane?
A car moving at 35 m/s approaches a stationary whistle that emits a 220 Hz sound. The speed of sound is 343 m/s. What is the frequency of sound heard by the driver of the car?
A chair of weight 130 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 43.0 N directed at an angle of 35.0 degrees below the horizontal and th