A driver notices that her 1130 kg car slows down from96 km/h to 64 km/h in about 6.5 s onthe level when it is in neutral... 查看全部
A simple model considers a continent as a block of density 2768 kg/m² floating in the mantle rock of density 3357 kg/m3 ... 查看全部
In the diagram below the displacement-time-graph of a spring oscillator is given. y/cm 20+ 10+ t/s or 0.2 0.4 0.6 0.8 i ... 查看全部
This is an displacement-time (x-t) graph of a SHM. А 2T -A For A = 4.5cm and T = 1.5s find the velocity at 0.3s. Write r... 查看全部
An object executing SHM with an amplitude 20 cm. Find the magnitude of its displacement in cm) when the value of its kE ... 查看全部
8) (15 points) A child drags her toy box (m = 4 kg) up a hill by applying a force F = 25î + 3ſ(N). The surface of the hi... 查看全部
An object executing SHM with an amplitude 19 cm. Find the distance (in cm) from the extreme position when the value of i... 查看全部
An object of mass 1772 g undergoing simple harmonic motion takes 1.5 s to travel from one point of zero velocity to the ... 查看全部
Plimsoll mark on the floating ship is reference mark located on a ship's hull that indicates the maximum depth to w... 查看全部
A geologist finds that a moon rock of mass 22 kg has an apparent mass of 6.9 kg when submerged fully in a liquid of dens... 查看全部