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The rod in question c is now lies horizontally, supported on eachend by a piece of wood (point A is the end farthest from the centerof gravity, and point B is the end nearest to the center ofgravity). If a 75.9 kg mass is placed onthe rod 26.84 m from point A, find the force exerted by the pillars on the rod.
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how
The blades in a blender rotate at a rate of 6900rpm . When the motor is turned off during operation, What is the angular acceleration as the blades slow down
A softball of mass 0.220 kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially atrest. compute the velocity of the target ball after the collision
two cars are racing. car one accelerates at 4.88ms2 and car two at 3.66ms2. if car two gets a 1 second head start when
A 250 g bob is constrained at a 53 degree angle by two strings. What is the initial tension in the diagonal string
A 35.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 430 N. Find the child's speed at the lowest point
Determine the temperature at which the resistance of atungstenwire will bethree timesits value at 20°C. Assume its coefficient of resistivity remains constant.
The position of a particle moving along the x amis by x=6t^2 -1t^3, where x is in meters and t in secconds. What is the positiion of the particle
An He+ ion has one electron , just as a hydrogen atom does , but has two protons in its nucleus instead of just one .Find a formula for the wavelength lambda of an emission line for this ion in terms of the magnitude of the hydrogen ground-state ene..
You have 31m of wire, which you want to use to construct a 45cm diameter coil whose magnetic field at its center will exactly cancel the earth's field of 0.55 gauss
A 2.10 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 20.5 cm. Find the total mechanical energy of the system
A cannonball is shot (from ground level) with an initial horizontal velocity of 41.0 m/s and an initial vertical velocity of 21.0 m/s. find the initial angle of the cannonball with respect to the ground
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