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Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C. 4. Compare the thermal energy of 0.5 L of coffee at 38°C and 0.25 L of coffee at 38°C. 5. Compare and contrast the shape and volume of water as it changes state: a. A 6 cm3 piece of ice is placed in a beaker. b. The beaker is heated to more than 0°C and the ice melts in the beaker. c. The liquid water is heated to above 100°C and eventually evaporates.
A concave mirror (R = 56.0 cm) is used to project a transparent slide onto a wall. How far from the wall should the mirror be located
When a slice of buttered toast is accidentally pushed over the edge of a counter, it rotates as it falls. Suppose the distance to the floor is 86 cm and the toast rotates less than 1 rev. (a) What is the smallest angular speed that causes the toast t..
A plank 2.00 cm thick and 13.7 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
A ray of light has an angle of incidence of 34.0 ° on a block of quartz and an angle ofrefraction of 17.5°. What is the index of refraction for this block of quartz?
q1.a thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates
A tennis player swings her 1000 g racket with a speed of 12 m/s. She hits a 60 g tennis ball that was approaching her at a speed of 24 m/s. How fast is her racket moving immediately after the impact
A man is stationary and he observes that the rain is striking him at 60? from the horizantal. When he starts moving with a velocity of 25 m/s, then he observes that the rain strikes him at an angle of 30? from the horizantal. Calculate actual velo..
A 82-kg sprinter accelerates from rest to a speed of 11.0 m/s in 4.5 s. at what average rate is he burning Calories
A 40g block of ice is cooled to -78 deg celcius and is then added to 560g of water in an 80g copper calorimeter at a temperature of 25 degrees celcius, determine how much ice is left
A car traveling at 18 {rm m/s} runs out of gas while traveling up a 24.0^circ slope. How far up the hill will it coast before starting to roll back down.
A rectangular loop of wire 6cm wide and 10cm long is placed with its plane parallel to a magnetic field of 0.08T. What is the magnitude of the resultant torque on the loop if it carries a current of 14.0A?
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
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