How can scientists reduce Bias in scientific investigation

Which of these describes an exothermic reaction? 1. energy is released by the reaction 2. energy is absorbed by the reaction 3. no energy is transferred by the reaction 4. energy is created in the reaction

What is the instrumental uncertainty of the clock and the odometer?

Which spectral class does the sun belongs to

A rocket is fired at 100 m/s at an angle of 37, what was its speed at the top of its path?

What causes resistance in an electrical current

California has been spending money to establish desalination plants. The state is preparing for

What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2? A. 0.25 N B. 49 N C. 196 N D. 748 N

When two or more pure substances are blended together the result is a?

10 PTS. A resistor has a value of 2.2 x 10⁵ Ω ± 20%. What is the range of possible values for this resistor?

Describe 3 uses of radioactivity isotopes