Physics, 24.12.2019 03:31, walkinginmypurpose
As a small bullet leaves a gun, a net force is applied to shoot it through a barrel. if the bullet has a mass of 34.67 grams and leaves the barrel at a speed of 249.7 m/s. if the barrel of the gun is only 13 cm, what force is applied to the bullet as it leaves the gun?
Answers: 2
Physics, 21.06.2019 18:10, zuleromanos
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 15:30, ayoismeisalex
What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology
Answers: 2
As a small bullet leaves a gun, a net force is applied to shoot it through a barrel. if the bullet h...
Mathematics, 16.11.2020 22:20