Yo help homeboy out will u!!?? 2 questions

A doctor has told Frida she must engage in physical activities to improve her heart health and minimize the chance of injury. Which of the following is best for her to try? (1 point)

Dancing

Sit-ups

Pull-ups

Karate

Increased physical activity can improve your metabolism, which can in turn (1 point)

improve your self esteem

decrease your self esteem

offend people who don't exercise

distract from your responsibilities

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

How do you tell if someone actually cares about you? and just say they do?

While studying chemical reactions and conservation of matter, sarah's class conducted a variety of experiments. sarah and her lab partner found the mass of a wax candle and placed the candle in a flask. the students lit the candle and let it burn to completion. all that was left was wax and charred candle wick. per their teacher's instructions, the students found the mass of the products. their data can be seen in the data table. formulate a hypothesis the students could test to explain why the experiment did not support the law of conservation of matter. a) the students could repeat the experiment using different candles; there might have been a flaw in the candle. b) the experiment should be repeatable. the students should run several trials and then take an average of the after mass in each trial. c) the students should have someone in the class check their measurement skills as they repeat the experiment. they may have made an error using the balance. d) the students should burn the candle in a container that has some type of lid so that any gas that is a product of the reaction can be contained and massed. submit