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A car travels at a constant speed around a circular track, whose radius is 2.6 km. The car goes once around the track in 360s. What is the magnitude of the centripetal acceleration of the car?
a) 0.79m
b) 0.79m/s
c) 0.79 s
d) 0.79m/s
the medians of a right triangle that are drawn from the vertices of the acute angles have lengths of 2radic3 and
A diver proposed using a plastic bag full of air, immersed in water, as an underwater lens. what shape should the air pocket have
A solenoid has a radius of 1.87 cm and 1080 turns per meter. Over a certain time interval the current varies with time according to the expression I = 2.91e0.2t, Calculate the electric field 4.54 cm from the axis of the solenoid
The earth orbits the sun once per year at the distance of 1.50 x 1011 m. How long (in earth days) does it take for Venus to make one orbit
A 12 kg piece of zinc at 65C is placed in a container of water. The water had a mass of 20 kg and a temperature of 12C before the zinc was added. What is the final temperature of water and zinc
Physics: Mechanics about two curling stones - calculate speed, resistive force Two curling stones A and B, each having a mass of 2 kg, are on an ice rink floor. A is stationary and 10 meters from a boundary wall, while B is sliding at right angles..
An iron bar of mass, 0.55 kg, slides down a frictionless incline 0.41 m high. What is the speed of the combined masses after collision
A centrifuge in a medical laboratory rotates at an angular speed of 2000 rev/ min. Find the constant angular acceleration of the centrifuge
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A planet's moon travels in an approximately circular orbit of radius 5.4 107 m with a period of 7 h 21 min. Calculate the mass of the planet from this information
suppose that 1.00g of ydrogen is seperated into electrons andprotons. supoose also that the protons are placed at theEarth's North Pole, What is the resulting compressional force on the Earth
Two balls of identical mass of 1.152 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.310 m. If the angle with respect to the vertical that the strings form is 24.5 degrees.
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