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Suppose the meter stick made an angle of 20 with the horizontal (the 0 mark above and the 100 cm mark below the horizontal ) when in equilibrium. Find the perpendicular distance between the axis of rotation and the lines of action of W & the 100 gm mass.
q1. an electron librated from a hot filament cathode is attracted by an anode with a potential of 1200v positive with
A common flashlight bulb is rated at 0.30 A and 2.8 V (the values of the current and voltage under operating conditions). what is the temperature of the filament when the bulb is on? The filament is made of tungsten
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 51° C. What is the temperature coefficient of resistivity
A box of unknown mass begins at the base of a 30 degree ramp with an initial velocity of 10.0 m/s. calculate the maximum distance up the ramp which the box will reach
When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.67 cm. What is the force constant of the spring
Connections to the body for electrocardiography (ECG) and electroencephalography (EEG) are normally made with metal electrodes and conductive gels to ensure good electrical contact. Whats the minimum electrode capacitance
The Ed-Scale defines the perfect temperature of a martini to be 8.0 degrees E and boling point of antifreese to bee 100 degrees E. Use this equation to find the freezing point of water in Eds
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. How much work is done on the hovercraft by the force during this time
Two thin-walled concentric sphere of radii 5.0 cm and 10 cm have a potential difference of 100 V between them. What is the charge carried by each sphere
Suppose that the Earth's orbit around the Sun is perfectly circular. Employing conservation arguments, find the value of the eccentricity e of the orbit
A particular race car can cover a quarter mile track (402 m) in 6.20 s starting from a standstill. what horizontal force must the road exert on the tires
A certain lightbulb is rated at 165 W when operating at an rms voltage of 1.5 V. What is the peak voltage applied across the bulb
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