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For an object in uniform circular motion, which of the following statements is false?
1. The velocity of the object is constant
2. The magnitude of the velocity is constant
3. The acceleration is directed radically inward
4. The magnitude of the acceleration of the object is constant
5. The velocity is directed in a direction that is tangent to the circular path
A 4.00-kg cylindrical reel with aradius of 0.600 m and a frictionless axle, starts from rest andspeeds up uniformly as a 2.00-kgbucket falls into a well, What is the linear acceleration of the falling bucket
a home receives 1.7kw of electric power from a transformer on a nearby pole. the line from the substation to the
A drill bit on a variable - speed drill has a constant angular acceleration of 2.5 rad/s2. The drill has an initial angular speed of 5.00 rad/s (a) after 4.00s, what will the angular displacement of the bit be? (b) What will the drill bits final spee..
A spherical mirror is to be used to form an image, four times as tall as an object, on a screen positioned 4.6 m from the mirror. Describe the type of mirror required
A car moving at 78mi/hr approaches a yield sign 70m ahead. The driver slows the car with a constant acceleration of -4.5m/s2 by hitting the brakes. How long does it take the car to reach the yield sign
A round loop of diameter 12 centimeter, carrying a current of 0.40 Amp, is located inside a magnetic field B = 0.20iT + 0.40jT. Determine what is the potential energy of the loop
the parallel-plate capacitor used on each key of a computer keypad is a square 0.7 cm on a side. between the plates is
Regarding the Earth and a cloud layer 800 m above the earth as the "plates" of a capacitor, calculate the capacitance. What is the maximum charge the cloud can hold
In a rear-end collision the automobile that is accelerated to a velocity V in 0.01 s. What is the minimum velocity at which there is danger of neck fracture from whiplash?
A 35.5 kg girl and a 58.0 kg boy are on the surface of a frozen lake, 12.5 m apart. Using a rope, the girl exerts a horizontal 4.60 N force on the boy, pulling him toward her.
The cutoff wavelength for a metal is found to be 300. nm. Calculate the maximum velocity of the emitted electrons
citizens band cb radio uses radio waves with frequencies near 27 mhz. what are the wavelengths of these waves and how
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