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True and False
1. The slope of the velocity time graph is the instantaneous acceleration.
2. Instantaneous velocity is the derivative of the displacement time function.
3. Average acceleration and instantaneous acceleration are always the same.
4. If the displacement of a particle is decreasing at a constant rate its velocity is constant.
5. Knowing the position and velocity of a particle allows its future position to be predicted even if its acceleration is unknown.
A generator supplies 140 V to a transformer's primary coil, which has 70 turns. If the secondary coil has 610 turns, what is the secondary voltage
In a classic clip on America's Funniest Home Videos, a sleeping cat rolls gently off the top of a warm TV set. (Ignore air resistance and consider upward motion to be positive with zero at the top of the TV).
developing a more realistic model the bioengineer models the acceleration of the snow petrl by an equation of the form
question1a truck is carrying a steel beam of length 17.0 m on a freeway. an accident causes a beam to be dumped off the
An astronaut is connected to her spacecraft by a 25 meter long tether cord as she and the spacecraft orbit Earth in a circular path at a speed of 3.0 x 10^3 m/s. Find the magnitude of the vertical component of Earth's field at this location
a pingpong ball weighs 0.025 n. the ball is placed inside a cup that sits on top of a vertical spring.the spring is
an exoplanet of mass 5 times the mass of jupiter and 3 jupiter radii orbits a star identical to the sun at a distance
The filament of an incandescent light bulb typically has a temp of 2,850K. Find lamda max. Is this the wavelength within the visible band? Plot B lamda for this temp, using linear axes.
Calculate the ground state energy and corresponding speed of a particle of mass 1.0 g in a box of length L=10.0 cm assuming the particle in a box model. Compare these quantities with those of an electron in a box of length 1.0 ..
A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.65 cm. The hose ends with a nozzle of diameter 2.40 cm. A rubber stopper is inserted into the nozzl..
A car radio draws 0.13 A of current in the auto's 12-Velectrical system. How much electric power does the radio use?What is the effective resistance of the radio?
What is the tangential acceleration of a bug on the rim of a6.0 in. diameter disk if the disk moves from rest to an angular speed of 77 rev/min in 4.0s? When the disk is at its final speed, what is the tangential velocity of the bug?
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