Measurements of the sun distance
Why did Aristarchus make his measurements of the sun's distance at the time of a half moon?
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A negative charge -21.00μ C is placed on the fourth corner. At the position of the negative charge, what is the magnitude of the electric field due to the three positive charges?
Ignoring all the frictional forces and assuming the pulley has no mass, find the acceleration of the two blocks, and the tension in the cord.
Explain the process of charging by induction. Compare this to the process of charging an object by direct contact.
A 24.0 kg beam is attached to a wall with a hinge and its far end is supported by a cable. The angle between the beam and the cable is 90o. If the beam is inclined at an angle of q = 29.4° with respect to horizontal. What is the horizontal com
The coefficient of kinetic friction between the block and incline is = 0.45. The mass of the spring is negligible.
A brick is thrown upward from the top of a building at an angle of 40° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building?
They then both turn around the spindle with their centers superposed. What is the angular frequency in rev/s of the combination?
You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 31 kg. The rope is at an angle of 30 degrees to the ground. As you pull with a force of 30 N, the sled travels a distance of 45 m.
Two spherical objects solid and solid cylinder have the same mass (m1 = m2) and the same radius (r1 = r2) rotates about its axis with angular velocity sama. Perbandingan kinetic energy between two objects is.
Sally applies a horizontal force of 254 N with a rope to drag a wooden crate across a floor with a constant speed. The rope tied to the crate is pulled at an angle of 55? relative to the floor. What work is done by the floor through force of frict
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