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1. A scale model of an object (m = 100 kg, A = 35 cm2, V = 40 cm3) is made such that the dimensions of the scale model are 5 times larger than the original object, but the scale model is identical to the object in every other way. What is the surface area Amodelin cm2of the scale model?
2. A scale model of an object (m = 100 kg, A = 35 cm2, V = 40 cm3) is made such that the dimensions of the scale model are 5 times larger than the original object, but the scale model is identical to the object in every other way. What is the volume Vmodel in cm3 of the scale model?
A star's temperature is 4951 K. Accordingto the Stefan-Boltzmann law, what is the total power output of the star
Two forces, and , act on the 7.00-kg block shown in the drawing. The magnitudes of the forces are F1=55.5 N and F2=33.5 N. Find the horizontal acceleration of the block
A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.
a. Estimate the settling speed of a grain of salt. b. How long does it take for the salt to reach the bottom of the bowl if the depth of soup is 10 cm.
A long straight wire carries a current of 35A in a region where a uniform external magnetic field parallel to the current has a 25μT magnitude. What is the magnitude of the resultant magnetic field at a point that is 25 cm from the wire? 38 μT is ..
A horizontal wire of length 0.11 m, carrying a current of 3.0 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.30 x 10^11 m apart. What is the mass of the smaller star
a 11 g bullet is fired into a 12 kg wood block that is at rest on a wood table. the block with the bullet imbedded
what is the angular speed in radians per second
The air inside a bicycle tire pump has 221 joules of work done on it as 60.1 joules of heat is conducted away from it
a swimmer maintains a speed of 0.15ms relative to the water when he swims directly toward the opposite shore of a
A 2.1 kilogram mass is connected to a spring with spring constant k = 150 N/m and unscratched length 18 centimeter. Evaluate what is the radius of its path
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