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A 530kg cannon fires a 11kg cannonball with a speed of 200m/srelative to the muzzle. The cannon is on wheels that roll without friction.
When the cannon fires, what is the speed of the cannonball relative to the earth?
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light in nm
A man is running at speed c (much less than the speed of light) to catch a bus already at a stop. At t=0, while he is a distance b from the door to the bus, the bus starts moving with the positive acceleration a.
find the speed and direction of a proton passing through the origin and where the magnetic fields are: B1=1.0x10^-13 (j hat) T at (x,y,z)= (1,0,0) in mm, B2= -1x10^-13 (i hat) at (0,1,0) in mm
During a hard sneeze, your eyes might shut for 0.50s. If you are driving a car at 90 km/h during such a sneeze, how far does the car move during time.
A typical red blood cell subtends an angle of only 1.91E-5 rad while viewed at a person's near-point distance of 25cm. Assume a red blood cell is examined with a compound microscope in which the objective and eyepiece are separated by a distance o..
Explain by how much time is required for the bullet to reach the target? Using the approximate value of g = 10 m/s2, how far does the bullet fall in this time?
A 35kg child slides down a playground slide at aconstant speed, The slide has a height of 4.0mand is 7.4m long, find the magnitude of the kinetic friction force acting on the child
During this experiment the first step in the procedure was the measurement of the string's mass and total lenght, Calculate lthe linear mass density of the string in g/cm
A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
Use the ideal gas approach to find the thermal velocity, and determine the scaling law based on the resulting equation
(a) In what direction are the electrons deflected? toward the negative plate toward the positive plate (b) By how much are the electrons deflected after passing through these plates?
The hunter uses a small powerboat that moves at a maximum speed of 14 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
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