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An object is thrown straight upwards with a speed of 40.8 m/s from the top of a 59.2 m tall building. What is the maximum height (from the ground) that the object reaches?
Water at 25 degrees celius is pumped from 100kPa to 5MPa in a pump with an efficiency of 75%, Calulate the temperature rise in the real pump
Consider a weathered rock or soil particle lying on a slope. How would the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope.
A sample of an unknown material appears to weigh 255 N in air and 195 N when immersed in alcohol of specific gravity 0.700. What is the volume of the material
A student wants to find out the speed of a high-speed projectile, but doesn't have a high-speed measuring device. what is the speed of the projectile just before the collision
A coin placed on a turntable rotating at 33.0 rev/min will stay there if its center is placed no further than 7.2 cm from the axis of rotation. What is the maximum distance the center of the coin can be placed from the axis
q1. a 0.12-kg ball is placed in a shallow wedge with an opening angle of 120deg as shown in the figure. for each
Sixty-seven million years ago, a large asteroid impacted Earth. It is widely accepted in the field of paleontology that this impact played a large role in a mass extinction that included all dinosaurs, find the change in the angular velocity of th..
A light board, 10 m long, is supported by two sawhorses, one at one edge of the board and a second at the midpoint. What is the force exerted by the sawhorse at the end of the board
An indoor swimming pool of depth 2m transfers heat at a rate of 100w/m2 to the 10m of air between the pool and the roof for 1000s. What is the temperature change of the air
a 57 kg researcher absorbs 6.3*10^8 neutrons in a workday. The energy of the neutrons is 2.6 MeV. What is the equivalent dosage of the radiation exposure
A lens of focal length +1.25 cm is used as a simple magnifier by holding outside the eye. what is the angular magnification
A highway is to be built between two towns, one of which lies 37.0 km south and 49.0 km west of the other. What is the shortest length of highway that can be built between the two towns
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