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Suppose that you have a certain spring to which you add weights. The spring does not stretch until you add 10 N, but it then stretch 10 cm for every 100 grams that you add. What is the equilibrium weight W0 of this scale, in newtons? The equilibrium weight of this spring is _________ N. What is the spring constant of this scale, in newtons/meter? The spring constant for this spring is __________ N/m.
A series RLC ac circuit is at resonance. It contains a resistor of 30 Ohms, a capacitor of 0.35 microFarads and an inductor of 90 mH. If an effective (rms) voltage of 150 V is applied, what is the peak current?
A rotating door is made from four rectangular sections. The mass of all section is 85kg. A person pushes on the outer edge of one section by a force of F = 68N that is directed perpendicular to the section. All section measures 1.2m from the axis ..
A large steam pipe is covered with 1.3-cm-thick insulating material of thermal conductivity 0.25 J/(s m °C). How much energy is lost every second
A block is resting on a ramp with coefficient of friction between the blockand the ramp being .350, What is the max angle that the block can make without slipping
Determine how much work W must be done on a particle with a mass of m to accelerate it from rest to a speed of 0.897c
As Jupiter (or any planet) orbits the sun, the sun responds by orbiting in a much smaller “orbit” around their mutual center of mass. At what distance from the center of the sun is the Sun-Jupiter center of mass? What is the sun’s circular velocity ..
Styrofoam has a density of 300kg/m3. What is the maximum mass that can hang without sinking from an 80.0cm -diameter Styrofoam sphere in water
A disc has a radius of 2.20 cm and a mass of 27.0 grams and is initially at rest. Starting at time t=0, two forces are applied tangentially to the rim as indicated, calc the moment of inertia of the uniform disc
A hospital orderly pushes horizontally on two boxes of equipment ona rough horizontal floor, as show in figure 4.38. Make a free-bodydiagram of each box if the force applied to the 50lb boxis 115N and each box experiences frictional forces of 8.2N.
A 0.100 kg block is suspended from a spring. When a small pebble of mass 40 g is placed on the block, the spring stretches an additional3.8 cm. By the pebble on the block, the block oscillates with amplitude of 15.0cm. (Suppose that the pebble is glu..
A 4mC charge passes through the point (3m, 4m) at a speed of 100m/s. Find the components of the magnetic force felt by the charge
A capacitor with an initial potential difference of 144 V is discharged through a resistor when a switch between them is closed at t = 0 s. At t = 10.0 s, What is the time constant of the circuit
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