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A diffraction grating with 345 lines/nm is 1 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.4 cm from the central maximum on the screen?
The deltoid muscle connects the shoulder blade to the upper arm (humerus), and so contraction of the deltoid raises the arm, Find the force the shoulder joint exerts on the humerus
X-rays having an energy of 280 keV undergo Compton scattering from a target. The scattered rays are detected at 36.0° relative to the incident rays. Find the Compton shift at this angle
how can you tell if there is a difference of potential between two points? urgent? b is work required to move a charge
A partially evacuated airtight container has a tight-fitting lid of surface area 75.4 cm2 and negligible mass. If the force required to remove the lid is 384 N and the atmospheric pressure is 1.00 × 105 Pa, what is the air pressure in the containe..
An automobile club plans to race a 700kg car at the local racetrack. The car needs to be able to travel around several 155m radius curves at 87km/h.
Find out the lengths of acceleration and deceleration phases
A railroad car with a mass of 2.46 x 10^4 kg moving at 3.25 m/s collides and joins with two railroad cars already joined together, each with the similar mass as the single car and initially moving in the same direction at 1.49 m/s.
In a laboratory, a wavelength of a particular hydrogen emission line (Balmer beta line) is observed as 486.1 nm. what is the stars radial velocity
in a series r-l circuit r0.125 ohms l500 microhenrys and the batterys emf is 0.750 v.a what is the energy stored in the
In this section assume the sound speed in air is 343 m/s . A goose flying toward you at 11.3 m/s emits a squawk, which you hear at 246 Hz . Find the wavelength of the sound you hear
the dry weight of a man is 845 n. when he is submerged underwater the reading on the scale is only 43.2 n.a what is the
Assume that the air temperature is 20C and that no wind is blowing. How much time would elapse if the wind were blowing toward the observer at 33.0Km/h from where the rail was struck?
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