The Figure Shows a 100-Kg Block Being Released from Rest

question 75

Multiple Choice

The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes it 0.90 s to reach the floor. What is the mass m of the other block? The pulley has no appreciable mass or friction.

• A) 60 kg
• B) 54 kg
• C) 48 kg
• D) 42 kg

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Definitions:

Intermolecular Forces

The forces which mediate interaction between molecules, including hydrogen bonding, dipole-dipole interactions, and dispersion forces.

Physical Properties

These are characteristics of a substance that can be observed or measured without changing its identity, such as density, color, melting point, and boiling point.

Condensation Point

The temperature at which a gas becomes a liquid; the cooling point where gaseous substances convert into their liquid state.

Alkanes

Hydrocarbons containing only single bonds between carbon atoms, with the general formula CnH2n+2.