Voices of swimmers at a pool travel 400 m/s through the air and 1,600 m/s underwater. The wavelength changes from 2 m in the air

a=Δv/Δt=(30.0-18.0)/8.0=12.0/8.0=1.5 m/s²

In collision-related situations, momentum remains constant.

Thus, we can deduce:

To resolve these problems we also need another equation concerning the restitution coefficient:

With these two equations, we can calculate the velocities after a collision.

Here, the contact force brings about changes in velocity during their interaction.

This represents the impulse that occurs when the two objects are briefly in contact during the collision, which modifies their velocities.

The responses would be:

C. Bubbles form

E. There is a change in color

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While the chosen answers are indicative of chemical reactions, if you are solely referring to the chemical reaction in your example, these two answers represent the only options.

A chemical reaction occurs when reactants create a new substance. Indicators of a chemical reaction include alterations in smell, color, and temperature. At times, precipitates may develop.

Answer:

The voltage across the bulb measures 3.0 V,

Explanation:

The bulb's voltage aligns with the voltage of the batteries, as they are the only power source for the bulb. Therefore, the voltage across the batteries is 3.0 V.

Answer:

The equivalent distance in kilometers is 4012 × km.

Explanation:

It's known that 1 millimeter converts to meters. Then, 1 meter converts to kilometers. Therefore, the conversion for 1 millimeter to kilometers can be stated as

1 mm = m

1 m = km

Thus, 1 mm = × km = km.

Given the distance of 4012 mm, the corresponding distance in kilometers will be

4012 mm = 4012 × km.

The distance therefore is 4012 × km.