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A metal block of mass 1.220 kg is hanging from a string. The tension in the string is 7.712 N. The block is submerged in a beaker of fluid and is stationary. What is the magnitude and direction of the buoyant force acting on the block? Consider making a free body diagram showing the three forces acting on the block.
Upward or downward?
A long cylindrical insulating shell has an inner radius of a = 1.42 m and an outer radius of b = 1.62 m, What is the magnitude of the electric field at a distance of r= 0.59 m from the axis
A proton accelerates from rest in a uniform electric field of 690 N/C. At one later moment, its speed is 1.30 Mm/s, Find the acceleration of the proton
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
An object undergoes simple harmonic motion with a period of 0.015 s, and an amplitude of 1.2E-2 m. What's the fastest the object travels during its motion
Two objects with masses of 2.90 kg and 8.00 kg are connected by a light string that passes over a frictionless pulley, Determine the acceleration of each object
A highway is to be built between two towns, one of which lies 44.0 km south and 71.0 km west of the other. at what angle would this highway be directed
Most of the asteroids orbit the Sun in a belt between Mars and Jupiter. how long does the average asteroid take to orbit the Sun
The speed of a light wave in a certain transparent material is 0.501 times its speed in vacuum, what is its wavelength in nanometers
A charge of -3.0 nC is at the origin and a second charge of 13.0 nC is at x = 8.00 m. Find the magnitude and direction of the electric field halfway in between the two charges.
An astronaut on the Moon drops a rock straight downward from a height of 1.50m. what is the speed of the rock just before it lands
Three resistors with values 1.0 , 2.2 , and 5.5 , respectively, are connected in parallel in a circuit with a 5.0 V battery. What is the total equivalent resistance
A charged particle A exerts a force of 2.69 ?N to the right on charged particle B, when the particles are 14.0 mm apart. Particle B moves straight away from A to make the distance between them 17.0 mm. What vector force does it then exert on A?
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