# Posts by jericho

Total # Posts: 7

physics
a 1000kg car is travelling with a speed of 33.3m/s2 when the driver saw an intersection 30m away. how much force is needed to stop the car right away?

math
I ONLY HAVE ONES AND TENTHS DIGITS. I AM LESS TAHN 9. ONE OF MY DIGITS IS 3 MORE THAN THE OTHER. WHAT NUMBER AM I?

math
I am dealing with 3 digit numbers. and it's tenths and hundredths. thank you

math
my tens digit is 3 less than my hundredths digit. The difference between my tenths and hundredths digit is 5. The sum of my digits is 10. What number am I?

statistics
supposed that the average weight loss for someone on a diet is 15 pounds with the standard deviation of 4 pounds. a sample of 18 adults enrolled a sswp have a mean weight loss of 15.83. using 0.01 level of significance.

statistics
a manufacturer of bicycle tire has developed a new system which he claims an average life span of 5 years. with the standard deviation of 1.2 years a dealer product claims that the average life span of 150 samples is only 3.5 years. test the difference of population and sample...

Science
When a plastic rod is rubbed on fur, does it become negitive or positive charge. Also, is a tinsel positive or negitive charge?