30 points to the first correct answer(btw they need to add a simple science subject). when a frying pan containing an uncooked egg is placed on the stove top and the electric burner is turned on, the egg then cooks. what is the source of heat energy of the cooking egg? electrical energy from the power socket newly created energy that was not present earlier newly created energy that increased the total energy mechanical energy from the heating element in the kettle

Alivestock company reports that the mean weight of a group of young steers is 1100 pounds with a standard deviation of 93 pounds. based on the model n(1100,93) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1300 pounds? c) between 1150 and 1250 pounds?

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity