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Q. A container of hot water at 80 degrees cools to 79 degrees in 15 seconds while it is placed in a room that is t 20 degrees. Use newton's law of cooling to estimate the time it will take for the container to cool from 50 degrees to 49 degrees?
Q. A cubic box of volume 6.10×10-2 is filled with air at atmospheric pressure at 20. The box is closed and heated to 178.00.
What is the net force on each side of the box?
Speedy Sue, driving at 33.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 175 m ahead traveling with velocity 5.10 m/s. Sue applies her brakes but could accelerate only at -2.00 m/s2 because the road is wet. Will there be a co..
The atomic mass of copper is 64 g/mole, and the density of copper is 8.9 g/cm3.
What will most likely cause arcing at the switch contacts.
find out kinetic energy of ball at the highest point of motion.
A hot (70°C) lump of metal has a mass of 250g and a specific heat of 0.25 cal/g°C. John drops the metal into a 500 g calorimeter containing 75g of water at 20°C.
A shuffleboard disk is accelerated to the speed of 6.1 m/s and released. If the coefficient of kinetic friction between disk and the concrete court is 0.30, how far does the disk go before it comes to a stop? The courts are 14.5m long.
Determine the eccentricity of the orbit of Uranus
State the direction as an angle with respect to the +x axis.
A 2.00 syringe has an inner diameter of 5.00, a needle inner diameter of 0.270, and a plunger pad diameter (where you place your finger) of 1.20. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100. Suppose the ..
A certain freely falling object requires 1.7s to travel the last 37m before it hits the ground. From what height above ground did it fall.
Calculate the size of the average force. plan the force vectors with their tails at the left sphere
Mark and Clark are identical twins at the amusement park riding on the bumper cars. Both boys have the same mass, 85kg. The cars are identical with a mass of 120 kg.
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