11. the battery in rebekah's car has gone flat. michael and eddy are push-starting the car. the diagram below shows the
forces applied to the car. the men need to apply enough force to overcome the forces opposing the movement of the
car. the mass of the car is 910 kg.
eddy 400 n
son force
michael 450 n
→ internal friction 530 n
→ friction with road 150 n
draw a free body diagram showing the net forces applying to the car:

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?

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