Suppose a 60.0 kg person was in a vehicle that was traveling at 26.1 m/s ( about 60 mph) at the moment it hit a concrete wall. The velocity a person equals that of the car both before and after the crash, and the velocity changes in 0.20 Sketch the problem a) What is the person's momentum in the traveling car. b)What the person's momentum in the car after it hits the concrete wall? c) What is the average force exerted on the person

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

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.