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An object travels in a circle of radius 2.0 m. At time t = 0, the object has a velocity of 10 m/s and it slows uniformly to a stop in 30s.
a. Draw a circle and indicate the velocity vector and the acceleration vector at some time between 0 and 30s.
b. What is the tangential acceleration?
c. What is the magnitude of the net acceleration?
A free electron and a free proton are placed in an identical electric field. which of the following statement are true?
A camera flash delivers 3.5kW of light power for 1.9ms, Find the total momentum carried by the flash p
The potential of a typical storm cloud can be as high as 109 volts. When lightning is produced, a typical lightning strike can produces an electric current of 20,000 amps.
A train travels due south at 30 m/s (relative to the ground) in a rain that is blown toward the south by the wind. Determine the speed of the raindrops relative to the ground
A 65.0 kg person jumps from rest off a 3.19 m-high tower straight down into the water. Determine the magnitude of the average force that the water exerts on the diver
A proton having an initial velocity of 17.2i hat bold Mm/s enters a uniform magnetic field of magnitude 0.360 T with a direction perpendicular to the proton's velocity. Determine the time interval for which the proton is in the field
A 70-? electrical appliance and a 90-? electrical appliance are plugged into the outlets of a house. By what factor will the power used change
A space station is to provide artificial gravity to support long-term stay of astronauts and cosmonauts. It is designed as a large wheel, with all the compartments in the rim, how long should the motor fire
A charge q= +5.62 micro Coulons is located at the center of a regular tetrahedron ( a four- sided surface), Find the total electric flux through the tetrahedron
Consider a transverse wave were represented by function y= 2.3 sin(1.9x-25t), where y,x, and t are in units of m,m, and seconds respectively. Determine the wavelength in meters.
ravinder and mohender were discussing the role of physics in society. ravinder said to mahender that physics does not
A person of mass 75 kg stands at the center of a rotating merry-go-round platform of radius 3.1 m and moment of inertia 1300 kg ·m2. Calculate the angular velocity when the person reaches the edge
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