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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)
How might tetrazolium be used in agriculture to monitor the viability of a supply of seeds before planting?
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 are the two type of blood vessels? How they are differen? Describe three major layers of large blood vessel? What are capillaries?
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?
The plasma membrane is a dynamic structure with bits continually being added and lost. Describe how this occurs. Hint Exocytosis and Endocytosis
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 is the food web for the Kudzu vine?
Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other?
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.
What is the name of specialized transmission of nerve impulses?
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
If proteases such as pepsin and trypsin digest protein, why don't they digest the stomach and small intestine,which are made from proteins?
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