Question

1. A 36.6-kg block of ice at 0 °C is sliding on a horizontal surface. The initial speed of the ice is 9.02 m/s and the final speed is 3.89 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice, and determine the mass of ice that melts into water at 0 °C.

2. A rock of mass 0.396 kg falls from rest from a height of 28.3 m into a pail containing 0.447 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1880 J/(kg ·C°). Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.

Answer #1

A 41.9-kg block of ice at 0 °C is sliding on a horizontal
surface. The initial speed of the ice is 8.83 m/s and the final
speed is 3.69 m/s. Assume that the part of the block that melts has
a very small mass and that all the heat generated by kinetic
friction goes into the block of ice, and determine the mass of ice
that melts into water at 0 °C.

A 48.5-kg block of ice at 0 °C is sliding on a horizontal
surface. The initial speed of the ice is 8.24 m/s and the final
speed is 4.08 m/s. Assume that the part of the block that melts has
a very small mass and that all the heat generated by kinetic
friction goes into the block of ice, and determine the mass of ice
that melts into water at 0 °C.

Question 1: A rock of mass 0.453 kg falls from rest from a
height of 23.0 m into a pail containing 0.335 kg of water. The rock
and water have the same initial temperature. The specific heat
capacity of the rock is 1920 J/kg C°. Ignore the heat absorbed by
the pail itself, and determine the rise in temperature of the rock
and water in Celsius degrees.
Question 2: A 33.7-kg block of ice at 0 °C is sliding on...

A rock of mass 0.309 kg falls from rest from a height of 23.4 m
into a pail containing 0.444 kg of water. The rock and water have
the same initial temperature. The specific heat capacity of the
rock is 1880 J/kg C°. Ignore the heat absorbed by the pail itself,
and determine the rise in temperature of the rock and water in
Celsius degrees.

A rock of mass 0.354 kg falls from rest from a height of 25.0 m
into a pail containing 0.438 kg of water. The rock and water have
the same initial temperature. The specific heat capacity of the
rock is 1880 J/kg C°. Ignore the heat absorbed by the pail itself,
and determine the rise in temperature of the rock and water in
Celsius degrees.

1. A copper block with a mass 1.32 kg is given an initial speed
of 2.7 m/s on a rough horizontal surface. Because of friction, the
block finally comes to rest. Assume that 70.8 % of the initial
kinetic energy is absorbed by the block in form of heat, what is
the change in temperature (in - do not enter units) of the block?
Data: cCu=387
2. A 2.62g aluminum bullet at 32.0°C is fired at a
speed of 275...

A 1.000 kg block of ice at 0 °C is dropped into 1.354 kg of
water that is 45 °C. What mass of ice melts?
Specific heat of ice = 2.092 J/(g*K) Water = 4.184
J/(g*K) Steam = 1.841 J/(g*K) Enthalpy of fusion =
6.008 kJ/mol Enthalpy of vaporization = 40.67 kJ/mol

A 5.00 kg block of ice melts at a temperature of 0 degrees Celsius.
What is the change in entropy of the ice when changing from solid
ice to water?
be detailed pls

A block of ice, mass
0.98 kg and initial temperature of -12 oC, is placed in
an insulating container. 2.57 kg of water at temperature 18
oC, is added to the container. The water and ice
exchange heat, but no other heat flows into or out of the
container.
In the process of the
water and ice reaching equilibrium, how much ice melts?
Give your answer in kg
to three digits.
Note: It is possible
that the answer is zero.

The speed of a block (weight= 10N) sliding across a
horizontal ice surface decreases at the rate of 1.5 m/s^2 . whats
The coefficient of kinetic friction between the ice amd the
block?

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