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A small 15.0-g bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction. The bar has mass 50.0g and is 120cm in length. The bug jumps off in the horizontal direction, perpendicular to the bar, with a speed of 20.0cm/s relative to the table.
A) What is the angular speed of the bar just after the frisky insect leaps?
A jet flying at 125 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, Calculate the magnitude of the necessary lifting force
An open container holds ice of mass 0.595kg at a temperature of -13.5 celcius . The mass of the container can be ignored. How much time passes before the ice starts to melt
Calculate P necessary to just start opening the 2 m wide gate.
A 47.60 g golf ball is driven from the tee with an initial speed of 56.0 m/s and rises to a height of 28.4 m. (a) avoid air resistance and determines the kinetic energy of ball at its highest point. (b) What is its speed while it is 8.02m below it..
It is possible to use electromagnetic radiation to ionize atoms. To do so, the atoms must absorb the radiation, What is the longest radiation wavelegth
A spherical mirror is to be used to form, on a screen located 5.0 m from the object, What should the radius of curvature be for the mirror
A block of mass m= 2.00kg is released from rest at h=0.500m above the surface of a table, at the top of a 30 degree incline. What is the velocity of the block as it leaves the incline
A positron emission tomography (PET) scanner examines the gamma rays emitted when positrons and electrons annihilate each other. What is the wavelength of the photons
Tarzan swings on a 35.0-m-long vine initially inclined at an angle of 32.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
An Olympic skier whose mass is 50 kg is moving at 25 m/s down a 20degree slope encounters a region of wet snow of coefficient of frictio Uk=0.55 which reduces her speed. Find the acceleration of the skier
A particle with charge ?2 µC is located on the x-axis at the point 4 cm, What is the magnitude of the total electrostatic force on a third particle with a charge of -2 µC placed on the x-axis at -2 cm
A turtle crawls along a straight line, which we will call the x-axis with the positive direction to the right. The equation for the turtle's position as a function of time is x(t) = 50.0 cm +(2.00 cm/s)t -(.0625 cm/s^2)t^2 At what time is the turt..
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