Please help!! A certain antelope once ran 1.6 km with an average speed of 67 km/h. The antelope’s speed for the first half (0.80 km) was 88 km/h. A) How long did it take to do the the 1.6 km? B) How long did it take to do the first half? C) Using your answers from the previous two parts, how long did the second half take to run? D) Lastly, what was the average speed for the second half?

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

Will give brainliest! which statement best describes the similarities between fundamental forces? electromagnetic and strong nuclear forces influence the interaction between charged particles within an atom. gravitational and magnetic forces are both types of charges that occur in nature. nuclear and magnetic forces are both related to mass and weight. strong nuclear force is most like electrical force because they are both related to distance.

In the first law of thermodynamics, triangle e=q-w, what does q stand for