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An object is under the force F = (k1*x) i - (k2*y) j. Calculate the work done by this force when the object:
a) moves on the x-axis from the origin to the point (a,0), and then goes from (a,0) until (a,b) parallel to the y-axis;
b) moves from the origin to the point (0,b), and then goes from (0,b) until (a,b) parallel to the x-axis.
A plane, diving with constant speed at an angle of 49 ° with the vertical, releases a projectile at an altitude of 570 m. The projectile hits the ground 7.0 s after release.
What is an actual mechanical advantage of the system
Atoms can be cooled using multiple laser beams. In such an experiment, the temperature of sodium atoms can be cooled to 0.1 mK. What is the rms speed of the atoms at this temperature
A 1.98 nF capacitor with an initial charge of 4.55 µC is discharged through a 1.23 k? resistor. What is the maximum current in the resistor
Suppose one gallon of gasoline produces 1.1 108 J of energy, and this energy is sufficient to operate a car for 16 miles. how many miles would the car go on a single tablet
A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.55 10^4 m/s, and the radius of the orbit is 5.50 10^6 m. What is the orbital speed of the second satellite
How many carbon atoms are there compared to gold atoms - What are these temperatures in Celsius?
A transverse wave on a string is described by the equation y(x, t) = (2.12 cm) sin[(101 rad/s)t + (14 rad/s)x]. How fast does the wave move along the string
Can sound travel through- (a) iron (b) water. Can sound travel through vacuum.Name the type of waves which are used by astronauts to communicate with one another on moon (or in outer space).Name one solid, one liquid and one gas through which sound c..
an electric dipole has charges of 4.55pc that are separated by 6.75cm . the dipole lies on the x-axis its positive end
The flux through a loop is given by ?m = (0.20t 2 - 0.58t) , where ?m is in webers and t is in seconds. Find the induced emf as a function of time
What is highest water pressure at which electrolysis can be performed to derive oxygen and hydrogen? Does the dielectric constant of water, which lowers as pressure increases, have an effect on this?
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