Which of the following accurately describes the behavior of water when subjected to temperature change. A- The volume of water will decrease if she cheated from 6 degrees C to 7 degrees Celsius. B-The volume of water will increase if cooled from 3 degrees Celsius to 2 degrees Celsius. C- A mass of matter will contract if cooled from 1 degrees Celsius to 0 degrees Celsius. D- A mass of water will expand if heated from 0 degrees Celsius to 2 degrees Celsius

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The volume of water will increase if cooled from 3°C to 2°C accurately describes the behavior of water when subjected to temperature change.

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The volume of water will increase if cooled from 3°C to 2°C accurately describes the behavior of water when subjected to temperature change.

Added 7/16/2019 12:31:27 PM

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Confirmed by Masamune [7/17/2019 3:23:36 AM]

Billy drops a water balloon from the roof of his house. Since the balloon began with an original velocity of 0 how far above ground was the balloon dropped if it took 2.5 seconds to hit the ground?

Question|Asked by Mordo

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Updated 131 days ago|7/22/2020 10:30:58 PM

1 Answer/Comment

Billy drops a water balloon from the roof of his house. Since the balloon began with an original velocity of zero, 30.6 meters far above the ground was the balloon dropped if it took 2.5 seconds to hit the ground.

Solution:

Distance = (1/2) (gravity) (time)²

= (1/2) (9.8 m/s²) (2.5 sec)²

= (4.9 m/s²) (6.25 sec²)

= 30.6 meters (answer)

Solution:

Distance = (1/2) (gravity) (time)²

= (1/2) (9.8 m/s²) (2.5 sec)²

= (4.9 m/s²) (6.25 sec²)

= 30.6 meters (answer)

Added 131 days ago|7/22/2020 10:30:58 PM

This answer has been confirmed as correct and helpful.

The force of gravity acting on a child's Mass on Earth is 490 Newtons. What's the child's Mass? **Weegy:** If the force of gravity acting on a child's Mass on Earth is 490 Newtons.The child's Mass (m) will be: 50 kg. Force (F) = 490N; Gravity (g) = 9.8 m/s/s. Formula: m = F/g. Substitution: m = 490 N/9.8 m/s2. Answer: 50 kg. (More)

Question|Asked by Mordo

Expert Answered

Updated 4/6/2018 6:24:44 PM

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On the Celsius scale one degree indicates the same temperature as? A. 1 degree Fahrenheit
B. 1 Kelvin
C. 5 / 9 degree Fahrenheit
D. 9/5 Kelvin? **Weegy:** One degree Celsius indicates the same temperature change as ONE KELVIN. **User:** Unlike other kinds of liquids volatile liquids. (More)

Question|Asked by Mordo

Not Answered

Updated 6/28/2019 4:10:27 PM

1 Answer/Comment

Unlike other kinds of liquids, volatile liquids: evaporate rapidly at a relatively low temperature.

Added 6/28/2019 4:10:27 PM

This answer has been confirmed as correct and helpful.

The force of gravity acting on a child's Mass on Earth is 490 Newtons. What's the child's Mass? **Weegy:** If the force of gravity acting on a child's Mass on Earth is 490 Newtons. The child's Mass will be: 50 kg. Force (F) = 490N; Gravity (g) = 9.8 m/s/s. Formula: m = F/g. Substitution: m = 490 N/9.8 m/s2. Answer: 50 kg. (More)

Question|Asked by Mordo

Expert Answered

Asked 4/5/2018 3:01:14 PM

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How much heat energy in (megajoules) is needed to convert 7 kilograms of ice at -9 degrees C. to water at 0 degrees C.? A) 3.09 MJ. B) 2.48MJ. C) 2.13 MJ D) 3.26 MJ

Question|Asked by Mordo

Not Answered

Updated 55 days ago|10/6/2020 8:39:00 PM

1 Answer/Comment

2.48 MJ of heat energy is needed to convert 7 kilograms of ice at 9 C to water at 0 C.

Solution:

Q = mLf+mci T

Q = (7 kg*3.34×10 J/kg) + ((7kg*2100J/kgK*{0°C-(9°C)})

= 2.48 MJ (MEGA JOULES).

Solution:

Q = mLf+mci T

Q = (7 kg*3.34×10 J/kg) + ((7kg*2100J/kgK*{0°C-(9°C)})

= 2.48 MJ (MEGA JOULES).

Added 55 days ago|10/6/2020 8:39:00 PM

This answer has been confirmed as correct and helpful.

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