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A particle moves so that its position (in meters) as a function of time in (in seconds) is r = I + 3.0 t^2 J+t K. Write expressions for its velocity and its acceleration as functions of time. Evaluate for t = 6.1 s. i-component of velocity?
j-component of velocity?
k-component of velocity?
i-component of acceleration?
j-component of acceleration?
k-component of acceleration?
A man is pushing a heavy box across the floor. The box weighs 95 lbs. The man is pushing forward on it with a force of 56 lbs. What is the resultant horizontal force on the box
it takes 60 joules of work to move 2 coloumbs of charge from point A to point B. what is the potential difference between point A and point B
A uniform solid disk of mass 2.97 kg and radius 0.200 m rotates about a fixed axis perpendicular to its face. If the angular frequency of rotation is 5.97 rad/s, evaluate the angular momentum of the disk when the axis of rotation passes during its c..
A 10 cm high object is situated 25 cm in front of a convex mirror that has a radius of curvature of 1.00 102 cm.
two ropes pull on the ring shown. the net force action on the ring is 205 n directly upward. what are the magnitudes of
What capacitance must be used in this circuit if the time constant is to be 3.4 ms.
A car heading north collides at an intersection with a truck heading east. If they lock together and travel at 28 m/s at 22° north of east just after the collision
A long, straight wire lies in the plane of a circular coil with a radius of 0.040 m. The wire carries a current of 5.0 A and is placed along a diameter of the coil. What is the net flux through the coil
Calculate the speed of sound in air at a temperature of 12.0 degrees C given that the speed of sound in air at a temperature of 0.0 degrees C is 331 m/s.
The pressure in the fluid at the distance from the axis of rotation is. You may ignore the variation in pressure with depth; suppose that it is much smaller than the variation in pressure with radius.
Most workers in nanotechnology are actively monitored for excess static charge buildup. what is the max number of steps any worker should be allowed before touchingthe components
Amy (mass 60kg) and initial velocity +7.5m/s, is skating on ice toward Bob (mass 90kg) and initial velocity +4.0m/s. They collide at some point. Determine amys final speed
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