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A Piece of balsa wood, with density: 0.12g/cm^3, with mass of 30g in air is affixed to alead sinker with a mass of 400g. What will be the apparent mass of this system when immersed in water?
A hollow spherical iron shell floats almost completely submerged in water. The outer diameter is 69.1 cm, and the density of iron is 7.87 g/cm3. Find the inner diameter, in cm.
Find the speed of the large fish just after it eats the small one. How much mechanical energy was dissipated during this meal?
write a rule in function notation that can be used to determine the sales tax on a purchase in Eastchester.
Question: What is the degree measure of the angle through which the hour hand on a clock rotates from 4:00pm to 8:00pm?
A small diameter, 61-cm long, solenoid has 280 turns and is connected in series with a resistor of 184 Ohm. Calculate the magnitude of the magnetic field in the middle of the solenoid when a vol
An ariplane is flying east at a constant altitude of 30,500 meters. When first seen to the east of an observer, the angle of elevation to the airplane is 63.6 degrees. After 33 seconds, the angle of
A current of 4 A flows through the wire with a uniform current density. Find the magnitude of the magnetic field at a distance of 0.6 cm from the center of the wire.
Suppose Alex wants to kick a ball over a 10 foot fence. Assuming that gravity has no effect, at what angle would he have to kick the ball if he were standing 6 feet away from the fence?
Question: A surveyor measures the angle of elevation from eye level to the top of a building as 60 degrees. If he is standing 40 m away from the building and is 1.6 m tall, how high is the building
It is placed in a uniform magnetic field of 62.0mT. The initial angle between the plane of the coil and the magnetic field B is 58.0degrees. What is the magnitude of the torque acting on the coil?
A weight attached to a spring is pulled down 2 inches below the equilibrium position. Assuming that the frequency of the system is 5/π cycles per second, determine a trigonometric model that give
An ac generator with E = Emsin(?dt), is connected to a capacitor with capacitance C. When the current is a maximum, what is the emf (E) of the generator?
Suppose that a weight on a spring has an initial position of s(0)=-5 inches and a period of P=2 seconds. Find a function s(t)=acos(2πFt) that models the displacement of the weight.
A 77 kg rock with a volume of 4 L is completely submerged in water. The density of water is 1 kg/L. What volume of water is displaced by the rock?
A 40607 lb force is applied to a surface that measures 79 in long and 8 in wide. Determine the pressure exerted on the surface by the force in both psi and Pa. 1 Pa = 1.45×10-4 psi.
To calculate the height of a tree, susie measures the angle of elevation from a point A to be 34 deg. she measures her distance to be 8 m from the base of the tree. How high is the tree to the neare
The medians of a right triangle that are drawn from the vertices of the acute angles have lengths of 2√3 and √73. Find the length of the hypotenuse.
A 1.5-kg copper block is given an initial speed of 4.0 m/s on a rough horizontal surface. If the block absorbs 85% of its initial kinetic energy as internal energy, calculate its increase in temperat
From a fixed point, a surveyor locates a pole at 215.6 ft due east and a bulding corner at 358.2 ft at 37.72 degrees north of east. What is the displacement of the building from the pole?
The surface water is at a temperature of 25°C, while the bottom of the pond is at 12°C. Find the rate at which energy is transferred by conduction from the surface to the bottom of the pon
Two cities have nearly the same longitude of 101 W. the latitude of the first city is 23 2', and the latitude of the second city is 36 50'. approximate the distance between the cities if the average
The diagonal of a rectangle is 340 millimeters, while the longer side is 277 millimeters. Find the shorter side of the rectangle and the angles the diagonal makes with the sides.
Using the capacitance C = 26 uF , calculate the current in the circuit 7.4 ms after the switch is closed. Assume that the capacitor is uncharged initially and that the emf of the battery is 9.0 V.
A bicycle with a 27-in diameter wheels has a chain ring with 52 teeth and a cog with 26 teeth. The cyclist is pedaling at 1 revolution per second. What is the velocity of the bicycle in mi/hr?