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A Porsche 914 accelerates uniformly from 0 to 60 miles per hour n 5 seconds. Assuming a frictionless air track and a glider mass of 550 g, find the mass M2 that one must hang from the glider in order to estimate acceleration equal to that of the Porsche.
In a Newton's ring experiment, the radius of curvature R of the lens is 4.0 m and the lens diameter is 26 mm. How many bright rings are produced
A car initially traveling at 24.7 m/sunder goes a constant negative acceleration of magnitude 1.50 m/s 2 after its brakes are applied. How many revolutions does all tire make before the car comes to a stop, assuming the car does not skid and the t..
A 38.0 kg wheel, essentially a thin hoop with radius 2.40 m, is rotating at 460 rev/min. It must be brought to a stop in 23.0 s. (a) How much work must be done to stop it? (b) What is the required average power? Give absolute values for both parts.
A charge particle of mass .0020kg is subjected to a 6 T magnetic field which is acts as a right angle to its motion. if the particle moves in a circle of radius .20m at a velocity of 5.0 m/s. what is the magntiude of the charge on the particle.
two point charges lie along the y-axis. a charge of q1 -8.5 microc is at y 6.0 m and a charge of q2 -7.5 microc is
assume that the area of contact between an automobile tire and the road is a rectangle with dimensions 17.5 cm cross
The efficiency of a Carnot engine is 27%. The engine absorbs 795 J of heat per cycle from a hot reservoir at 499 K. Determine the heat expelled per cycle and the temperature of the cold reservoir.
A cyclist starts from rest and rides in a straight line, increasing speed so that her wheels have a constant angular acceleration of 2.0 rad/s2 around their axles. determine how far has the cyclist traveled
The center of mass between an uknown spacecraft and a probe of mass 10^5 kg is 1000 m from the probe. if the spacecraft is 1010 m from the probe, what is the mass of the spacecraft
A solid block is suspended from a spring scale. The reading on the scale when the block is completely immersed in water is 25.8 N, and the reading when it is completely immersed in a liquid of density 869 kg/m3 is 26.7 N.
a small object is released from rest and falls 1.00 times 102 feet near the surface of the earth. neglect air
Three resistors with values of 4.0 \Omega,7.0 \Omega, and13 \Omega areconnected in series in a circuit with a 6.5 Vbattery. What is the total equivalent resistance? What is the current in each resistor?
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