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What is a reasonable estimate of the uncertainties in both the resonant frequencies and the recorded wavelengths? Are they equal to the instrument uncertainty? Explain why or why not.
A boxer stops a punch with his head. To approximate the force of the blow, treat the opponent's glove, hand, and forearm as aparticle of mass 1.68 kg moving with aninitial velocity of 21.5 m/s.
Determine the normal force for a laundry basket with a mass of 4.2 kg in each of the following situations (a) at rest on a horizontal surface _____ N
The 1D2 state of atomic oxygen lies 1.968 eV above the ground state. Calculate the enthalpies of reaction for the HOx cycle reaction 1DO + H2O r 2OH and the corresponding ground state reaction 3PO + H2O→ 2OH.
A stone is thrown horizontally from a vertical cliff 25m highand lands on the ground below, What was the original horizontal speed of the stone
Find the Current through R1, Potential difference across R1, Current through R2, Potential difference across R2, Current through R3, Potential difference across R3, Current through R4 and Potential difference across R4.
A siren has a frequency of 906 Hz when it and an observer are both at rest. The observer then starts to move and finds that the frequency he hears is 1239 Hz. What is the seed of the obsrver
Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1400 kg , is going from north to south at 13.0 m}/ s. How fast were the enmeshed cars moving just after the collision
Examine the major effects that government policies have on production and employment.
1. Calculate the image position. 2. Calculate the image height. Type a positive value if the image is upright and a negative value if it is inverted.
A 2,315-kilogram roller coaster car starts at point A almost at rest. It first runs downhill and then is approaching a hill. At its top, the hill can be described by a circle with radius 9 m. Find the height required at point A, such that the norm..
a double slit is illuminated with 656.3 nm light the screen is located 80 cm from the slits, which are separated by 0.180mm. calculate the fraction of the maximum intensity 0.6 cm from the central maximum.
a parachutist with a camera descends in free fall At a speed of 14m/s. What is the velocity of the camera just before it hits the ground
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