Physics, 04.03.2021 05:00 gennhill14
On a windy winter's day, the actual air
temperature is – 5°C and the wind speed is
15 kilometers per hour. What would the wind-
chill factor make the temperature feel like to a
person outdoors?
F 1.7°C
G -5°C
H -10.6°C
J-16.7°C
Answers: 1
Physics, 21.06.2019 18:10
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.
Answers: 2
Physics, 22.06.2019 14:30
A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.
Answers: 1
On a windy winter's day, the actual air
temperature is – 5°C and the wind speed is
15 kilomet...
15 kilomet...
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