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Question1
Babe Didrikson holds the world record for the longest baseball throw (296 ft) by a woman. For the next questions, imagine that a ball is thrown at an angle of 45.0° above the horizontal, that it travels a horizontal distance of 292 ft, and is caught at the similar level from which it was thrown.
(a) What is ball's initial speed?
(b) How long is ball in the air?
Question2
A small steel ball bearing with a mass of 25.0 g is on a short compressed spring. While aimed vertically and suddenly released, the spring sends the bearing to a height of 1.27 m. estimate the horizontal distance the ball would travel if the same spring were aimed 36.0 deg from the horizontal.
A 1.0-cm-diameter microscope objective has a focal length of 2.8 mm . It is used in visible light with a wavelength of 550 nm. What is the objective's resolving power if used in air
The currents in household wiring and power lines alternate at a frequency of 60.0 Hz. What is the wavelength of the EM waves emitted by the wiring
Assume an astronaut in training sits in a seat at one end, facing the axis of rotation 29.0 ft away. Determine the rotation rate, in revolutions per second, required to give the astronaut a centripetal acceleration of 18.5g.
Calculate the radius of its ground-state orbit, Calculate the energy of the electron in the ground state of double ionized lithium
A jeweler examines a diamond with a magnifying glass. find the angular magnification when the diamond is held 5.39cm from the magnifying glass
Two manned satellites approaching one another at a relative speed of 0.300 m/s intend to dock. What is the loss of kinetic energy in this inelastic collision
It is expected to measure an X-ray peak which occurs at an angle of around 31.6g. Alter viewing the scale and pointer, with what accuracy w ill you quote the result?
When a 0.31-kg mass is attached to a vertical spring, the spring stretches by 15 cm. How much mass (total) must be attached to the spring to result in a 0.53-s period of oscillation
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
A 2.00-mol sample of hydrogen gas is heated at constant pressure from 302 K to 414 K. Calculate the energy transferred to the gas by heat
A falling skydiver of mass 86.0 kg accelerates downward at 6.7 m/s2. What is the upward force due to air resistance
Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. how many TOTAL number of maxima can be seen
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