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Find stress,strain and young's modulus of elasticity in the case of wire 1.5 m long and 1mm2 in cross section ,if it increased by 1.5 mm in length,when a weight of 10 kg. is suspended from it.
suppose that each vehicle is initially moving at 8.60 m/s and that they undergo a perfectly inelastic head-on collision. what force does the seat belt exert on each driver
At t=1.0s, a 0.70kg object is falling with a speed of 6.0 m/s. At t=2.0s, it has a kinetic energy of 25 J. What is the kinetic energy of the object
if an acoustic wave from an echo sounder on a ship take .30 seconds to reach the sea-floor and reflected wave returns to the boat in .30seconds how deep is the water.
A cord is 20cm long, four complete waves fit along its length when vibrated 30 times per second for the waves on the cord. What is the wavelength? What is the frequency? What is the speed?
A water pipe having a 2.60 cm inside diameter carries water into the basement of a house at a speed of 0.827 m/s, find water pressure (in kPa) at the second floor
An electron is at rest just above the surface of a sphere with the radius of 1.90 mm and a uniformly distributed positive charge of 2.1 x10-15 C.
A 0.20 kilogram ball is thrown straight up into the air with an initial speed of 13 m/s. Determine the momentum of the ball at its maximum height
A parallel-plate capacitor has square plates that are 8.00cm on each side and 4.20mm apart. how much electrical energy is stored in the capacitor
The distance between two successive minima of a transverse wave is 2.45 m. Five crests of the wave pass a given point along the direction of travel every 14.5 s. (a) Find the frequency of the wave. Hz (b) Find the wave speed. m/s
at 20 deg c an alum ring has an inner diameter of 5.000 cm and a brass rod has a diameter of 5.050 cm. a if only the
A 4.0 uF capacitor is connected in series with a 2.0 kilaOhm resistor across a 20-V DC source and an open switch. If the switch is closed at t=0 s, what is the charge on the capacitor at t= 9 ms
The pupil of a person's eye has a diameter of 5.40 mm. According to Rayleigh's criterion, what distance apart must two small objects be
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