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The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 3.85 m/s. If non-conservative forces,such as kinetic friction and air resistance, are negligible, whatwould be the height h of the highest point reached by the skateboarder on the right side of the ramp?
Assume that the sun radiates as a blackbody , if Lp=5000A for the solar spectrum, what is the surface temperature of the sun
a binary channel with capacity 36 k bitssec is available for pcm voic transmission. if signal is band limited to 3.2
A small block of mass m1 = 0.5kg slides to the left, with a velocity of v1 = -8.40 m/s, towards a curved wedge of mass m2 = 3 kg which sits on an icy, frictionless lake surface.
on a spacecraft two engines fire for a time of 541 s. one gives the craft an acceleration in the x direction of ax
What percentage of the neutrons would not interact if the concrete slab were made 45.0 cm thick? How many centimeters thick would the concrete need to be so that 12.0 per cent of the neutrons are transmitted.
A proton and an electron are moving due east in a constant electric field that also points due east, Determine the magnitude of the acceleration of the proton and the electron
A mass of 50 kg hangs from a cable that, in turn, is tied to two other cables, What are the tensions in the two upper cables, TL and TR
what is the mass of the earths atmoshere (the radius of the earth is 6.37 x 10^6 m, and atomosheric pressure at the surface is 1.013 x 10 ^5 N/m^2)
A dentist's drill starts from rest. After 2.90 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min. Find the drill's angular acceleration
A light spring-gun projectile launcher is mounted on an 0.533 kg air track glider. What is the speed of the air-track glider after the gun is fired
Three sticks are arranged to forma right triangle. if the lenghts of the sticks are .47m, .62m, and .78m, what are the angles of the triangle?
As the drawing illustrates, a siren can be made by blowing a jet of air through 20 equally spaced holes in a rotating disk. What must be the angular speed in radians per second of the disk
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