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A certain lightbulb has a tungsten filament with a resistance of 19.1 ? when at 20.0°C and 139 ? when hot, Find the temperature of the hot filament
a jetliner is moving at a speed of 270 km/h. the plan then decelerates at 4.5 m/s2. what is the minimum runway length on which this aircraft can land
The flash of a digital camera totally consumes the energy of an arrray of identical 7 F capicitors when a picture is taken, How many capicitors are in the array
Determine the tension in an elevator cable if the 2000 kg elevator is accelerating upward with an acceleration of 1.8 m/s^2
An object is thrown vertically upward and has a speed of 20.0 m/s when it reaches two thirds of its maximum height above the launch point, determine The velocity of the object at maximum height
A 5.0 kilogram block is experiencing an applied 3.0 newton force in the positive x direction and is held stationary by an opposing frictional force, Determine the magnitude of the normal force
A fighter jet lands on the deck of an aircraft carrier. It touches down with a speed of 70.4 m/s and comes to a complete stop over a distance of 197.4 m, What is the acceleration of the jet
A canal boat (mass=25,000 kilograms) is being towed at a uniform velocity v=3.10 m/s, Determine the magnitude and direction of the towing force
A pilot knows a 7.00 km distance lies between two landmarks A and B on the level ground below. When he is over landmark A, What is the airplanes altitude
A ball of mass 20 kg moves with a velocity of 2 m/s along the +x axis (call it ball A). It collides with a ball of mass 12 kg which is initially at rest (call it B), What is the final velocity of ba
The wheel of a car has a radius of 0.320 m. The engine of the car applies a torque of 288 N · m to this wheel, What is the magnitude of the static frictional force
Explain the difference between a fluorescence emission spectrum and a fluorescence excitation spectrum, What is the force constant for the CO bond
A 1.00 kg soccer ball is kicked down field at 5 m/s by a Bob on Team A. Tom, a member of Team B, runs up and kicks the ball so that it is traveling at 15 m/s, what is the impulse acting on the ball
Two resistors, 48.8 and 60.5?, are connected in parallel. The current through the 60.5-? resistor is 3.72A, What is the total power supplied to the two resistors
Explain what you think the "Roaring 20's" means. Explain America's economics at the start of the 1920's-also be able to explain why.
A projector lens having a focal length of 15 cm puts an image of a 35 mm slide on a screen 4 m away, How large is the image of the slide on the screen
A 0.300 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.750m/s when it makes a head-on collision with a stationary 0.150 kg glider, Find the final kin
What is the name of the Global Navigation Satellite Systems of the Rusia and in which year became operational?
How did western civilization define the world, especially countries such as latin America, North America, New Zealand, Europe & any others you can think of. & what types of impact have remaine
For a common emitter amplifer, current gain is 70. If the emitter current is 8.8mA, Calculate the collector and base current. Also calculate current gain
think about the modes of substances in the gas phase and explain why potential energy is included in the thermal energy of some substances in the gas phase, when a monatomic solid/liquid turns into
How did Germany succeed in combating the depression the Western countries encountered in the interwar years? Within the integration Western Europe, an economic system emerged based on social solidarit
A silt of width a is illuminated bymonochromatic light of wavelength 650nm at normal incidence. Calculate the value of a , when the first minimum falls at an angle of diffracction 30 degree
A spherical capacitor contains a charge of 3.20 nC when connected to a potential difference of 220 V, Calculate the radius of the inner sphere