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A fireworks rocket is launched vertically into the night dky with an initial speed of 47.6m/s. The rocket coasts after beinglaunched, then explodes and breaks into 2 pieces of equal mass 3slater.
A. If each piece follows the trajectory that is initially 50degrees to the vertical, what was theri speed immediately after the explosion?B. What is the velocity of the rocket's center of mass beforethe explosion?C. What is the velocity of the rocket's center of mass after explosion?D. What is the acceleration of the rocket's center of massbefore the explosion?E. What is the acceleration of the rocket's center of massafter the explosion?
An "extreme" pogo stick utilizes a spring whose uncompressed length is 34 cm and whose force constant is 1.2×104 N/m. Calculate her upward acceleration, in g's at that moment
Which container has more gas molecules?
What is the time constant of a 9.50 thick membrane surrounding a 4.0×10-2 diameter spherical cell? Suppose the resistivity of the cell membrane as and the dielectric constant is approximately 9.00.
Cloverleaf exits are approximately circular. A 740 kg automobile is traveling 60 mph while taking a cloverleaf exit that has aradius of 44.5 m. Calculate the centripetal acceleration of the car and the centripetal force on the car
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part A. Illustrate what should be the maximum speed of the car so it can round the curve safely?
q1. a hotel elevator ascends 170 m with a maximum speed of 5.9 ms. its acceleration and deceleration both have the
A student has a stretched string on density u and length L under a tesnion F. A standing wave of frequency f = 4/4 squareroot, Calculate the length of the string
If we can treat the atom as a 'box' of size 20 nm for an electron, what wavelengths could this electron have
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m^3, length 91.5cm, obtain the weight of the rod
In a 45° - 90° - 45° prism with a ray of light entering and exiting on the long side of the prism after undergoing two total internal reflections. Determine the minimum index of refraction of the prism in order for this to occur
A charge of +q is located atthe origin, while an identical charge is located on the xaxis at x = 0.50 m. Where should the third charge be located
as a laudably skeptical physics student you want to test coulombs law. for this purpose you set up a measurement in
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