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A car with energy absorbing bumper hits a tree. The mass of the car is 1500kg, the initial velocity was 10 m/s. If the car came to rest uniformly in 2 meters
a. What was the energy absorbed?
b. What was the force constant?
A positive charge Q1 = 3.00 µC is in the origin and a negative charge Q2 = -5.00 µC is at point x = 11m. Find the position of point P between the charges, where the electric potential equals zero.
A pendulum is 1.20 metres long. What is the speed of the bob when it passes by its equalibrium position if it is pulled aside until it makes an angle of 25 degrees to vertical.
In an RLC series circuit, these three elements are connected in series: a resistor of 67.0 ?, a 33.0-mH inductor, and a 0.0480-F capacitor. Find the resonant frequency for the circuit
What will be the acceleration of three of these objects glued together if they are pulled by two rubber bands
A movig particle encounters an external electric field that decreases its kinetic energy from 9130 eV to 7570 eV as the particle moves from position A to position B, Determine the charge of the particle
The distance between the objective and eyepiece lenses in a microscope is 24cm, What eyepiece focal length will give the microscope an overall angular magnification of 350
The 500[m] Short Track speed skating Olympic world record is 39:937[sec] held by American JR Celski. Calculate JR's average speed in [miles=hr] during his record- setting performance.
If Michaela needs to wear reading glasses with refractive power of +3.0 D, what is her uncorrected near point
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves needed for the bat to detect an insect that is 0.53 cm long? (Assume the speed of soun..
What is the magnitude of the acceleration caused by magnetic force? Ignore the gravitational force acting on the electron.
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 beam of ultraviolet radiation, with frequency of 2.56×1015 Hz is directed at a clean metal surface. Calculate the maximum kinetic energy for an electron dislodged from the surface by the radiation
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