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A Porsche 914 accelerates uniformly from 0 to 60 miles per hour n 5 seconds. Assuming a frictionless air track and a glider mass of 550 g, find the mass M2 that one must hang from the glider in order to estimate acceleration equal to that of the Porsche.
A 2.0 m pendulum is released from rest when the support string is at an angle of 25 degrees with the vertical. What is the speed of the pendulum bob at the bottom of the string
The spheres are then separated so that there is a distance of 200mm between their centers. What is the force between them?
A water balloon is released from rest from the top of the Thurmond Marshall School of law. Ignore the air resistance. Find the position and velocity of the water balloon
A guitar string, destined to be an upper E string, has length 98.00 cm and mass 0.460 g. What is its mass per unit length? What length of this string should be used on a guitar if the fundamental frequency is to be 330 Hz and its tension is to be 78...
A beaker with a capacity of exactly 100 mLcontains 99.5mL of ethanol at 26?C. at what temperature will it overflow
A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. What is the focal length of the diverging lens
A square coil of wire with 18 turns is in a magnetic field of 0.46 T. The total flux through the coil is 0.62 T·m2. Find the area of one turn if the field is perpendicular to the plane of the coil
a loudspeaker at the origin emits sound waves on a day when the speed of sound is 340 ms. a crest of the wave
A bat flying at 5.25 m/s is chasing an insect in the same direction. The bat emits a 40.10-kHz chirp and receives back an echo at 40.50 kHz. What is the speed of the insect
At the end of a factory production line, boxes start from rest and slide down a 35o ramp 4.8 m long. If the slide is to take no more than 2.1 s, what is the maximum coefficient of friction between the slide and the box?
In the ground state of hydrogen, the uncertainty in theposition of the electron is roughly 0.10 nm. how fast is the electron moving
The three charged particles in the figure below are at the vertices of an isosceles triangle (where d = 3.80 cm). calculate the electric potential at point A, the midpoint of the base
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