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A car speeds up as it turns from traveling due south to heading due east. When exactly halfway around the curve, the car's acceleration is 2.70 m/s2, 10.0 degree north of east.
a) Find the radial component of the acceleration at that point?
b) Find the tangential component of the acceleration at that point?
A boy with a mass of 45 kg is hangingfrom a spring with a spring constant of 180 N/m. With what frequency does the boy bounce up and down
A plane normally takes 10 hours to travel 5, 500 miles. One day significant headwinds slow the plane down, how long will the entire trip take
A particular race car can cover a quarter-mile track (402m)in 6.40s starting from a standstill. what horizontal force must the road exert on the tires
An object with mass 2.5kg is executing simple harmonic motion, attached to a spring with spring constant 330N/m. Calculate the maximum speed attained by the object
A 55 g piece of aluminum at 21 °C is cooled to -196 °C by placing it in a large container of liquid nitrogen at that temperature. How much nitrogen is vaporized
A stone has a mass of 4.00 x10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.76.
A 370-g block is dropped onto a vertical spring with spring constant k=3.2 N/cm. While the spring is being compressed, what work is done by the block's weight
An RL series circuit has R= 78.0? and L= 2.00mH. The series combination is connected across a 165V(rms), 65Hz power supply. Find the impedance of the RLcombination
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.139 N when their center-to-center separation is 69.5 cm.
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
A particle moves along the x-axis. Its position is given by the equation x= 7 + 3t2 - 8t3 where x in meters and t in seconds. Find what is the objects acceleration
A neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density in g/cm3
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