physics

A hot stell ball of mass 1 kg is dropped into a 4 L bucket of water at room temperature (70 degrees F). If the system reaches an equilibrium temperature of 320 K, what was the initial temperature of the steel ball before it was dropped into the water? Cp of steel = 490 J/kg degrees C, Cp of water = 4186 J/kg degrees C.

  1. 👍 0
  2. 👎 0
  3. 👁 115
asked by Meghan
  1. the sum of heats gained is zero.

    HeatgainedSteelBall+ HeatgainedWater=0
    1kg*490*(Tf-Ti)+4000*4186*(Tf-70)=0
    solve for Ti

  2. thank you!

    1. 👍 0
    2. 👎 0
    posted by Meghan

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Please help me, I am in dire need of it, A football quarterback shows off his skill by throwing a pass {5.70 m downfield and into a bucket. The quarterback consis- tently launches the ball at 38.00' above horizontal, and the

    asked by Kristi on October 9, 2017
  2. Physics

    A football quarterback shows off his skill by throwing a pass 45.90 m downfield and into a bucket. The quarterback consistently launches the ball at 40.00 ∘ above horizontal, and the bucket is placed at the same level from which

    asked by Lily on October 22, 2016
  3. Physics

    Please help me, I am in dire need of it, A football quarterback shows off his skill by throwing a pass {5.70 m downfield and into a bucket. The quarterback consis- tently launches the ball at 38.00' above horizontal, and the

    asked by Kristi on October 10, 2017
  4. Physics

    A rubber ball with a mass of 0.130 kg is dropped from rest. From what height was the ball dropped, if the magnitude of the ball's momentum is 0.710 kg · m/s just before it lands on the ground?

    asked by Nicco on November 5, 2014
  5. physics

    a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped?

    asked by sim on December 9, 2011
  6. Physical Science

    If a hot iron ball is dropped into 200.0 gram of cooler waterthe water temperature increases by 2.0 celsius and the temperature of the ball decreases by 18.6 celsius. What is the mass?

    asked by Anonymous on February 22, 2012
  7. Physical Science

    A hot iron ball is dropped into 200.0 g of cooler water. The water temperature increases by +2.0°C and the temperature of the ball decreases by -18.6°C. What is the mass of the iron ball?

    asked by elise on July 15, 2015
  8. Physics

    A small ball of mass m is placed on top of a large ball of mass 3m. Both balls are dropped simultaneously from a height h = 5.50 m as shown in the figure. Assuming the radius of the large ball and small are small and thus

    asked by Bill on July 11, 2018
  9. Physics

    A 3.40 kg block of copper at a temperature of 74 °C is dropped into a bucket containing a mixture of ice and water whose total mass is 1.20 kg. When thermal equilibrium is reached the temperature of the water is 14 °C. How much

    asked by Jennifer on April 23, 2015
  10. Physical science

    A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?

    asked by Savannah on October 16, 2012

More Similar Questions