1. A race car drives one lap around a race track that is 500 meters in length.

1. The "Opportunity" rover that just landed on Mars transmitted music back to Earth. If the distance to Earth at the time was 9x107 km and radio waves (a kind of "light") travel with a speed of 3x108 m/s, how long did it take for the signal to reach

a metronome is a device used by many musicians to get the desired rhythm for a musical piece. if a metronome is clicking back and forth with a frequency of. 5 Hz, what is the period of the metronome

If an oxygen has 8 protons in its nucleus what is its atomic number A. 6 B. 8 C. 4 D. 12

What is used to represent a recessive trait in the a Punnett square.

What is the biggest planet?

Solve the following automotive-services problem. Remember I = E/R, where (I = amps) against resistance (R = ohms) in the electric field (E = volts.). Resistance = 0.2 ohm Current = 30 amps Voltage = 6 (T/F)

1: Explain how you can use Boyle's Law to determine the new volume of gas when its pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 L. Assume the temperature and number of particles are constant.

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If a skater who is spinning pulls her arms in so as to reduce her rotational inertia by half, by how much will her angular momentum change? by how much will her rate of spin change?

What an object is made up of and the color of light that strikes it determine the A) apparent color of object B) transparency of the object C) opacity of the object D) translucence of the object