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A boy pulls a box with a mass of 30 kg with a force of 25 N at 30 deg angle in the North East direction. Ignoringfriction, what is the acceleration of the box? What is the normalforce exerted on the box by the ground?
a metal sphere of radius 19 cm has a net charge of 6.0 10-8 c.a what is the electric field at the spheres surface?b if
A pickup truck with mass 1.88x10^3 kg is traveling eastbound at +16.0 m/s, while a compact car with a mass of 8.56x10^2 kg is traveling westbound at -16 m/s. find the speed of the entangled vechicles after collision
A 1970-kg car is moving down a road with a slope of 14% while speeding up at a rate of 3m/s^2. What is the direction and magnitude of the frictional force
An explorer in dense jungles of equatorial Africa leaves his hut. He takes 41 steps at an angle 45 north of east, then 81 steps at an angle 60 north of west, then 51 steps due south. Suppose his steps all have equal length. Save him from becoming ..
Each of two small non-conducting spheres is charged positively, the combined charge being 40 mC. Determine the magnitude of the smaller of the two charges
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
What should the charge (sign and magnitude) of a particle of mass 1.47 be for it to remain stationary when placed in a downward-directed electric field of magnitude 610.
A simple pendulum is constructed from a mass of 2 kg and a massless string of length 3.5 m. The pendulum is pulled 5.5 cm to the right and released to start the motion. What is the period of the pendulum
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 16.4 rad/s. What is the angular speed of the wheel
A long, current-carrying solenoid with an air core has 1640 turns per meter of length and a radius of 0.0173 m. What is the mutual inductance of this system
a spelunker is surveying a cave. she follows a passage 160m straight west then 290m in a direction 45 degree east of
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.59 x 104 m/s, What is the orbital speed of the second satellite
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