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A particle starts from the origin with velocity 5 m/s at t = 0 and moves in the xy plane with a varying acceleration given by = (8t), where is in meters per second squared and t is in seconds.
(a) Determine the velocity of the particle as a function of time.
(b) Determine the position of the particle as a function of time.
A pumpkin sets in front of a mirror with radius of curvature of -20 cm. How far away is the pumpkin from the mirror
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. Find the angle of incidence of the laser ray on the mirror
Electrons are ejected from a metallic surface with speeds ranging up to 4.60 × 105 m/s when light with a wavelength of 625 nm is used. a)What is the work function of the surface? b) What is the cutoff frequency for this surface?
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. how much is on the outer surface of the car
The specific heat of a 100-g block of a substance is to be determined.The block is placed in a 25-g copper calorimeter holding 60 g of water at 20°C. Determine the specific heat of the block
In 2.0 minutes, a ski lift raises six skiers at constant speed to a height of 175 m. The average mass of each skier is 65 kg. Illustrate what is the average power provided by the tension in the cable pulling the lift?
Assuming an electron free Earth. Find the force on a single proton just above Earths surface under these conditions. Compare your answer with the weight of the proton.
A cardinal (Richmondena cardinalis) of mass 4.00×10-2 and a baseball of mass 0.143 have the equal kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
On a nice winter day at the South Pole, the temperature rises to ?63°F. What is the approximate temperature in degrees Celsius
What is the magnitude and direction of the net force on the box?
Two large, parallel, conducting plates are 17 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces, Find the electric field at the position of the electron
A projectile is shot with initial velocity 20.0 m/s at launch angle ? = 60.0? up from horizontal. How far from the gun does the other fragment land
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