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Given the total radiant exitance of 64 W∙m-2 integrated over the wavelength range 2.41-2.90 μm, what is the average radiant exitance over this interval in W∙m-2∙μm-1? 


A rectangular plate has a length of 21.3
A massless spring( k= 311N/m) is pulled by 0.5 m from its natural length and released..the spring is attached to a 0.8 kg block and oscillates across a horizontal frictionless surface
1 maximum velocity?
At 0.27m from it natural length, it's
2 velocity will be?
3 acceleration will be?
3 restoring force will be?

If the angular momentum is conserved and if a black hole is a dimensionless singularity, where does the angular momentum of the accretion material go?


displacement of 24 16 18 28 meters


A Ball is thrown straight upwards and rises to a maximum height of 20m above its launching point


A bottle full of meecury has a mass of 720gms.When full of water its mass is 90gms. Calculate the volume of empty density bottle.


what is the velocity of a rock which was thrown down from a bridge if it has a velocity of 35 m/s after 3 s?


A steel cable whose cross sectional area is 2.5 cm2 supports a 1,000 kg elevator. The elastic limit of the cable is 3.0 X 108 Pa. What is the maximum upward acceleration that be given the elevator if the tension in the cable is to be no more than 20 % of the elastic limit?if the acceleration of the elevator upward is 6 m/s2, what is the tension force in the cable

if the acceleration of the elevator upward is 6 m/s2, what is the tension force in the cable



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