
Determine the kinetic energy of (a) a 29-kg mass moving at 122 m/s, (b) a tennis ball weighing 58.5 g moving at 71.3 mph, (c) a beryllium atom moving at 355 m/s, (d) a neutron moving at 3.000 × 103 m/s.
(a)

Interpretation:
Kinetic energy should be calculated in the given statement by using the equation of kinetic energy
Concept Introduction:
Energy is the capacity to do work or transfer heat where work is the movement of a body using some force. The SI unit of energy is joule (
where
Explanation of Solution
To find: Determine the kinetic energy of a
Kinetic energy (in joule) is calculated using the formula:
where
Therefore, the kinetic energy of a
(b)

Interpretation:
Kinetic energy should be calculated in the given statement by using the equation of kinetic energy
Concept Introduction:
Energy is the capacity to do work or transfer heat where work is the movement of a body using some force. The SI unit of energy is joule (
where
Explanation of Solution
To find: Determine the kinetic energy of a tennis ball weighing
Kinetic energy (in joule) is calculated using the formula:
where
The mass of the tennis ball in kilograms is
The velocity of the tennis ball in meters per second is
Substitute the given values in the formula,
Therefore, the kinetic energy of a tennis ball weighing
(c)

Interpretation:
Kinetic energy should be calculated in the given statement by using the equation of kinetic energy
Concept Introduction:
Energy is the capacity to do work or transfer heat where work is the movement of a body using some force. The SI unit of energy is joule (
where
Explanation of Solution
To find: Determine the kinetic energy of a beryllium atom moving at
Kinetic energy (in joule) is calculated using the formula:
where
The mass of a beryllium atom in kilograms is
Substitute the given values in the formula,
Therefore, the kinetic energy of a beryllium atom moving at
(d)

Interpretation:
Kinetic energy should be calculated in the given statement by using the equation of kinetic energy
Concept Introduction:
Energy is the capacity to do work or transfer heat where work is the movement of a body using some force. The SI unit of energy is joule (
where
Explanation of Solution
To find: Determine the kinetic energy of a neutron moving at
Kinetic energy (in joule) is calculated using the formula:
where
The mass of a neutron in kilograms is
Substitute the given values in the formula,
Therefore, the kinetic energy of a neutron moving at
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Chapter 3 Solutions
GEN COMBO CHEMISTRY: ATOMS FIRST; ALEKS 360 2S ACCESS CARD CHEMISTRY:ATOMS FIRST
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