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Question1
A solid cylinder of mass 8.9 kg and radius 32 cm is yoked to a spring as shown. To be precise, axle of the cylinder is attached to a horizontal spring of force constant 1335 N/m.
The cylinder rolls back and forth on a horizontal base without slipping. For ease, assume that the spring, the axle and the yoke that connects them have negligible masses compared to the cylinder itself. What is an angular frequency of the cylinder rolling back and forth around equilibrium position? Answer in units of s 1.
Question2
A rocket set to land on mars is accelerating straight up from the earth's surface.At 1.15s after liftoff, rocket clears the top of its launch platform, 63m above the ground. After an additional 4.75s it is 1.00km above the ground. Compute magnitude of the average velocity of the rocket for?
Question3
A school yard teeter totter with a total length of 4.8 m and mass of 36 kg is pivoted at its center. A 15 kg child sits on one end of the teeter totter.
(a) Where should a parent push with a force of 185 N in order to hold teeter totter level?
(b) Where should the parent push with a force of 363 N to keep teeter totter level?
An experiment finds that standing waves on a 0.800-m-long string, fixed at both ends, occur at 24.0 Hz and 32.0 HZ, but at no frequencies in between. What is the wave speed on the string
question1the position of a particle moving along an x axis is given by x 12t2 - 2t3 where x is in meters and t is in
A 2.8 kg block slides along a frictionless horizontal with a speed of 5.5 m/s. After sliding a distance of 8m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 43 degrees to the horizontal. The acceleration of gravit..
Four charges of equal magnitude Q = 65 nC are placed on the corners of a rectangle of sides D1 = 25 cm and D2 = 10 cm. calculate the numeric value for the vertical force
Two sinusoidal waves of the same frequency travel in the same direction along a string. what is the amplitude (in cm) of the resultant wave
An occupant of a car has a chance of surviving a crash if the deceleration all through the crash is not more than 30.00 g. Approximation the force on a 72 kg person decelerating at this rate.
A playground merry-go-round has a radius of 4.20m and a moment of inertia of 255kg m2 and turns with negligible friction about a vertical axle through its center. What is the average power supplied by the child
The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge crowds expected for the After Thanksgiving Sale. How long were they in the mall
A spring oscillator is designed with a mass of 0.132 kg. It operates while immersed in a damping fluid, Find the required damping constant for the system
Find out the magnitude of the friction force acting on the case. Laser light with a wavelength = 680 illuminates a pair of slits at normal incidence. What slit separation would produce first-order maxima at angles of 40 from the incident direction.
A 10 kg block sits motionless on a table in spite of an applied horizontal force of 2 N. What are the magnitudes of the reaction force
A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. If the total area, planting area plus sidewalk area, is 150 m^2, what is the sidewalk width w in meters.
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