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A microscope for viewing blood cells has an objective with a focal length of 0.50 cm and an eyepiece with a focal length of 2.5 cm. The distance between the objective and eyepiece is 14.0 cm. If a blood cell subtends an angle of 2.1 x 10-5 rad when viewed with the naked eye at a near point of 24.0 cm, what angle (magnitude only) does it subtend when viewed through the microscope?
Standing at the edge of a cliff 33.5 m high, you drop a ball. Later, you throw a second ball downward with an initial speed of 12.7 m/s. What is the increase in speed of the second ball
Knowing the temperature at the surface of the Earth to be 72 F, find the temperature at the surface of Venus. ( show your work step by step.)
A young boy with a broken leg is undergoing traction. What is the magnitude of the force exerted on the femur by the lower leg
A thermometer can be made from a brass wire (temperature coefficient of resistivity 0.00150°C^?1 at 20.0°C), What is the resistance of the wire
A ceiling fan is turned on and a net torque of 2.2 N · m is applied to the blades. The blades have a total moment of inertia of 0.20 kg · m2
Derive an equation for specific gravity in terms of the ry sample weight and the apparently lighter submerged weight, Calulate the specific gravity of each sample
An automatic rifle fires 50 gram bullets at aspeed of 900 m/s at a rate of 50 bullets per second. What is the average recoil force against the gun's mount
The 54-MW wood-fired McNeil Generating Station in Burlington, Vermont, produces steam at 950 ?Fto drive its turbines, Find McNeil's maximum thermodynamic efficiency
A .5kg mass attached to the end of a string swings in a vertical circle (radius =2m), What is the magnitude of the force of the string on the mass at this position
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20° C, the initial current is1.50 A. A few seconds later, the toaster warms up and the currentnow has a value of 1.24 A. The averagetemperature coefficient of resistivity for..
in a game of pool the cue ball strikes another ball of the same mass and initially at rest. after the collision the cue
A sphere that is a perfect blackbody radiator has a radius of 0.080 m and is at 250°C in a room where the temperature is 29°C. find the net rate at which the sphere radiates energy
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