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If the coefficient of static friction is 0.500, what minimum force magnitude is required from the rope to start the crate moving?
If ?k = 0.386, what is the magnitude of the initial acceleration of the crate?
A plate carries a charge of -4 ?C, while a rod carries a charge of 2.50 ?C. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find out the maximum height H to which she rises above the end of the track.
If the parachutist comes to rest with constant acceleration over a distance of 0.610 m, what force does the ground exerts on her.
Calculate the power required by an object to lift another object
An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 25.00 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (1) How much time elapses from start to stop? ..
A dipole is formed by point charges +3.8 micro Coulomb and -3.8 micro Coulomb placed on the axis at (0.45 m, 0) and (-0.45m, 0), respectively. At what positions on the axis does the potential have the value 7.7×105 V?
Vector A is in the direction 44.0 clockwise from the negative y-axis. The x-component of is = -19.0 What is the -y component of A? What is the magnitude of A.
An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.
A piece of string 5.30 m long has a mass of 14 g. What must the tension in the string be to make the wavelength of a 128 Hz wave 120 cm.
Find the distance from the mirror to the point where the reflected rays meet.
What is the acceleration of a 747 jumbo jet, mass 31,000 kg, in takeoff when the thrust for each of its four engines is 28,000 N?
A 0.15 kg ball is placed in a shallow wedge with an opening angle of 150.For each contact point between the wedge and ball, find out the force exerted on the ball. Assume the system is frictionless.
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