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When a resistor with resistance R is connected to a 1.50-V flashlight battery, the resistor consumes 0.0625 W of electrical power. (Throughout, assume that each battery has negligible internal resistance.) What power does the resistor consume if it is connected to a 12.6-V car battery? Assume that R remains constant when the power consumption changes.
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.350mm wide. The diffraction pattern is observed on a screen 3m away.
Copper wire has a breaking stress of about 3×108 N/m2. What is the maximum load that can be hung from a copper wire of diameter 0.66 mm
a ruler of mass m 75g and l3.0meters is placed so that it is exactly balanced across two spinning cylinders a distance
A copper block is removed from a 300^0 C oven and dropped into 1 L of water at 20.0^0 C. The water quickly reaches 25.5^0 C and after that remains at that temperature. What is the mass of copper block.
A merry-go-round accelerating uniformly from rest achieves its operating speed of 2.5 rpm in five revolutions. Find how many seconds does it take the merry-go-round to reach its operating speed
You are traveling on an airplane. The velocity of the plane with respect to the air is 110 m/s due east. What is the speed of the plane with respect to the ground
Laura is walking straight toward a plane mirror at a speed of 0.5 m/s relative to the mirror. Find at what speed is her image approaching the mirror
A baseball player hits a baseball (m = 0.144 kg) as shown in the figure below. The ball is initially traveling horizontally with speed of 39 m/s. find the magnitude of the average force of the bat on the ball
A skier of mass 125 kg travels down a ski trail. Suppose the ski trail is not frictionless. If the skier has a speed of 50 m/s at the bottom of the hill, What is the work done by friction on the skier
Two hockey pucks of equal mass, one red and one blue, are involvedin an elastic collision. Determine the final speed of each puck
What multiple of the time constant τ gives the time taken for an originally uncharged capacitor in an RC series circuit to be charged to 14.0% of its final charge?
an iron wire has a cross-sectional area of 1.31 x 10-5m2. carry out steps a through e to compute the drift speed of the
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