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Water waves in a lake travel 3.77 m in 2.09 s. The period of oscillation is 1.5 s. What is the speed of the water waves? Answer in units of m/s.
Suppose a 61 kg boy and a 43 kg girl use a mass less rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
What travel time is required for the landing
A 3*5 card containing two pinholes, 0.08mm in diamter andseparated center to center by 0.10mm, how far away should the screen be
four charges, q1=1.5 nC, q2=4nC, q3=20nC and q4=-1nC are placed so that q4=(0,0) q1 is north of q4 and .5m away q2 is east of q4 and 1.0m away q3 is SW of q4 at angle of 36.9 degrees
A negatively charged particle remains stationary in an downwardly directed E field between two parallel charged plates separated by 2cm. How many electrons does the charged particle contain
A 125-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1720 N. Inside this rocket, Find the acceleration of the rocket
Suppose the uranium nucleus was at rest just before the decay. If the α particle is emitted at a speed of 1.74×107 m/s, illustrate what would be the recoil speed of the thorium nucleus?
The hot resistance of a flashlight bulb is 2.20 , and it is run by a 1.53 V alkaline cell having a 0.100 internal resistance. Calculate the power supplied to the bulb using I2Rbulb
Suppose a photon with a wavelength of 7155 angstroms strikes ahydrogen anion, which has an electron binding energy of .75419eV.Is this sufficient to cause ejection of the electron? If so, whatwill be the kinetic energy and the deBroglie wavelength..
The length of a table in the laboratory was measured as 182.36 cm, What is the relative uncertainty of the length, What is the uncertainty of the length
A 4-g bullet is fired into a 1.4-kg block that is resting on a table. After impact, What was the initial speed of the bullet?
The magnitude of the electric field due to a disk of radius 3 m and a uniformly distributed positive charge is measured to be 150 N/C at a location in the air 6 mm from the center of the disk, what is the magnitude of the electric field due to the ..
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