Select which of the following are outside influences that can affect a researcher’s ability to control an experiment. attrition statistical models selection bias Hawthorne effect history sample population maturation

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Which of the following is a measure of the amount of light a star directly emits?               a.  luminosity    b.  intensity    c.  wavelength    d.  brightness