Why are chloroplast not needed in animal cells?

What happens to the strength of the magnetic field as you come closer to the current carrying wire?

The period of an oscillator is 1 minute. What is the frequency and why?

Why does the moon have so many craters compared to the earth?

A television requires 100 watts of power and a current of 0.8 amps to function properly. what is the voltage at which the television operates?

A swimmer can swim 4.00 km/h in still water. He heads south across a river that flows east at 2.00 km/h. The river is 0.500 km wide. His velocity wih respect to the ground is

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