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A) If a compressive force of 3.2×104N is exerted on the end of a 18cm long bone of cross-sectional area 4.3cm2 , will the bone break? Use Ebone=1.5×1010N/m2, tensile strength of bone = 1.3×108N/m2.
B) By how much does it shorten?
Two cars have a head on collision. Both were traveling at 42m/s toward each other. Car A has a mass of 722 KG. Car B has a mass of 848KG. After impact, car A is moving backward at 2 m/s. What is car B's velocity after impact.
A 676kW power station delivers power to a factory, How much less power is wasted in the transmission wires if the electricity is delivered from the power station at 54200V rather than 13700V
At what average rate does the force from the cable. A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 15 {rm m}/{rm s} as the hand is 2.0 {rm m} above the ground.
A 39.00 g ball is fired horizontally with initial speed v_0 toward a 110g ball that is hanging motionless from a 1.00 m-long string. The balls undergo a head-on, perfectly elastic impact, after which the 110 g ball swings out to a highest angle th..
Pennies today are copper-covered zinc, What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral
Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V
A mode-locked, titanium-sapphire laser has a wavelength of 850 nm and produces 100 million pulses of light each second. What is the average power produced by the laser
Two sounds differ in intensity level by 4.62 dB. What is the ratio of the intensities of these two sounds? (Let I1 be the intensity of the first (higher) sound and I2 be the intensity of the second (lower) sound.)
Billiard ball A of mass = 0.130 moving with speed = 2.80 strikes ball B, initially at rest, of mass = 0.150. Consequently of the collision, ball A is deflected off at an angle of 28.0 with the speed = 2.00.
A 2 meter wire carrying 0.9 A of current is at a 90 degree angle to a magnetic field. compute the strength of the field
A satellite moves in a circular orbit around the Earth at a speed of 4420 m/s. Determine the period of the satellite's orbit
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
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