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Physics

Braeden George

17. Elaine connects an ammeter to a lamp, which is connected to a battery. She records the current. She connects another battery in series to the circuit and records the ammeter reading again. She repeats this step two more times.

a) Which variable is Elaine not changing?

b) Which variable is Elaine changing?

c) Which variable is Elaine studying?

d) What do you expect Elaine's readings to show?

18. Mary measures the current in a long, thin extension cord. She unplugs the cord and switches it for a shorter, thicker one. What will Mary observe if she measures the current through the new extension cord?

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Physics

Mckenna Thornton

If you have two different sized velocity vectors representing two objects moving in the same direction, then what can you conclude?

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Physics

Gamble

The identity of an element depends on the number of 1. protons in the atom. 2. electrons in the atom. 3. neutrons in the atom. 4. protons and neutrons in the nucleus.

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Physics

Aleena Francis

Why do the positions of stars change in the universe?

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Physics

Darrell Meyer

If a glacier is in equilibrium, where ablation is equal to the accumulation, what occurs in the terminus or 'snout'

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Physics

Ace Frost

When the nanocrystalline semiconductor samples provided in case study are irradiated with violet light, you should observe that different samples emit different colors of light. Explain how the trend in the observed emitted colors (from violet towards red) is related to a trend in the band gap energies of these samples.

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Physics

Leandro Hansen

Which of the following best describes the function of a plant's flowers?

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Physics

Stacy Mora

Which is not true of low back pain? A. Most recover in 4-6 weeks. B. It affects just less than half of all adults. C. The recurrence rate can be quite high if not treated properly. D. Disk compression is one of a few common causes.

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Physics

Santos Powell

Which color of aurora gives off higher energy light, green or red?

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Physics

Leilani Peters

What happens to the volume when temperature is held constant and the pressure is increased to 125 kPa

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Physics

Karly Patrick

A 1,500.0 kg car hits a brick wall with a force of 60.0 N in 1.75 seconds. What is the change in the momentum of the car?

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Physics

Pace

Consider the equation 2KBr + Cl2 → KCl + Br2. What type of reaction is this?

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Physics

Abril Rangel

Talia is on a trip with some friends. In the first 2 hours, they travel 100 miles. Then they hit traffic and go only 30 miles in the next hour. The last hour of their trip, they drive 75 miles

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Physics

Sharon Fleming

A sample of gas has a volume of 25L at a pressure of 200 kPa and a temperature of 25°C. What would be the volume if the pressure were increased to 250 kPa and the temperature were decreased to 0°C?

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Physics

Ash

At which position would a person on earth see the entire lighted half of the moon?

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