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Calculate the initial velocity for each using the average time of fligh up, the acceleration of gravity and the initial velocity. The average time up for A is 3.18s and for B is 1.87s and using the formula t=Vo Sin(θ)/g.
A ball of mass 0.30 kg is fired with velocity 160 m/s into the barrel of a spring gun of mass 2.5 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses direction, changeing from +20.9 km/s to 18.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration(in m/s^2) du..
Find a formula for the harmonic frequencies (fn) for a pipe open at only one end based on v=f*lamda and the formula we got for the harmonic wavelengths and For a pipe of length 0.40m, find the first five harmonic wavelengths and frequencies.
consider a simple harmonic oscillator. calculate the time averages of the kinetic and potential energies over one cycle
A 1,500kg satellite is placed in an orbit 8,000km above the surface of the Earth. How long does it take the satellite to go around the Earth
I've been looking around about LCD monitors, and how they polarise light. When a pixel needs to be black, the light is "twisted" so that it can't go through the polarising sheet in front. What happens to this light? Does it relfect back into the s..
The minimum angle of resolution of the diffraction patterns of two identical monochromatic point sources in a single-slit diffraction pattern is 7.5×103rad. what is the wavelength of the sources
a 6.00 kg bowling ball is rolling at 9.00 m/s. It collides with a 1.50 kg bowling pin at rest. What is the velocity of the ball after the collision
A 2000-kg car accelerates uniformly from rest to 30 m/s in a time of 20 s. What is the net force acting on the car
an engineering student has made a robot mouse that is running around a circle on a horizontal table. the mouse is kept
How many carbon-14 nuclei decay per second in a 70-kgperson, assuming that the person's body contains 12% of carbon and that there is one carbon-14 nucleus for every 10 12carbon-12 nuclei? How much time must pass after this person dies before the C..
consider a black body of surface area 20 cm2 and temperature 6000 k.a how much power does it radiate?b at what
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