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A diver springs upward from a boardthat is three meters above the water. At the instant she contactsthe water her speed is 8.70 m/s andher body makes an angle of 73.0°with respect to the horizontal surface of the water. Determine her initial velocity, both magnitude and direction.
m/s (magnitude)
° (direction)
Object O1 is 14.7 cm to the left of a converging lens with a 10.8-cm focal length. What is the overall magnification of this system
a monatomic ideal gas with an initial pressure of 500 kPa and an initial volume of 1.80L expands isothermally to a final volume of 5.20L. how much work is done on the gas in this process
A column of soldiers, marching at 134 paces per minute, keep in step with the music of a band at the head of the column. what is the approximate length of the column
A 5 kg block, measuring 10 cm per side, is held 50% submerged in water by a Helium balloon. If the density of Air is 1.18g/L, what is the diameter of the balloon
One way to attack a satellite in Earth orbit is tolaunch a swarm of pellets in the same orbit as the satellite but inthe opposite direction. What is the kinetic energy of the pellet in the reference frame of the satellite just before the collision
Let us assume that the winter consists of 150 days in which the outside temperature is 0C. This will give the typical number of "heating degree days" observed in a winter along the northeastern US seaboard.
The positively charged plate of a parallel-plate capacitor has a charge equal to Q. When the space between the plates is evacuated of air, What is the dielectric constant of the material
Calculate the work done by an external agent during anisothermal compression of 1.00 mol of oxygen from a volume of24.0 L at 0°C and 1.00 atmpressure to 17.5 L
A hang glider and its pilot have a total mass equal to 119 kg. While executing a 360° turn, What is the net force on the hang glider
Two narrow slits are illuminated by a laser with a wavelength of 560 nm. Calculate the distance between the two slits
A 47.0-g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 25.6 m. Neglect air resistance and determine the kinetic energy of the ball at its highest point
A charge of +3.3 micro-Coulombs is placed in a capacitor without a dielectric. It starts from rest and accelerates toward the negative plate. After it has traveled 309.2 cm, it is moving at 7.2 x 103 m/s.
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