# Posts by jessika

Total # Posts: 15

**Physics**

A shell is fired from the ground with an initial speed of 1.60 × 103 m/s (approximately five times the speed of sound) at an initial angle of 43.0◦ to the horizontal. The acceleration of gravity is 9.81 m/s2 . a) Neglecting air resistance, find the shell’s ...

**Biology 111**

what is the amino acids?

**science**

What is the magnitude of g at a height above Earth's surface where free fall acceleration equals 6.5m/s^2?

**physics**

A 0.10 g plastic bead is charged by the addition of 1.0 x 1010 excess electrons. What electric field (strength and direction) will cause the bead to hang suspended in the air?

**businness**

Regional Integration for and Against Articles • Felix, a U.S. technology company has recently developed a revolutionary wireless phone. The product offers exciting new features along with all of the features of current products, but at a fraction of the manufacturing ...

**Chemistry**

a solution has a density of 1.50 g/mL. how many grams are needed to obtain 10.0 mL of solution?

**statistic**

ok olvidenlo ya entregue

**statistic**

o Formulate a hypothesis statement regarding your research issue.? o Perform a regression hypothesis test on the data.? o Interpret the results of your regression hypothesis test.? 11,809 12,009 12,095 12,050 11,671 11,952 11,975 11,774 10,864 11,402 11,871 11,794 11,674 12,...

**statistic**

Hypothesis Test: Independent Groups (z-test) Machine I Machine II 22.25 23.63 mean 3.06 1.30 std. dev. 8 8 n -1.375 difference (Machine I - Machine II) 1.175 standard error of difference 0 hypothesized difference -1.17 z .2421 p-value (two-tailed)

**statistic**

. A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to assemble products. The...

**math**

how do i Perform the indicated operation. 10 3/7+ 19 5/9

**math**

i don't understand how to use the formula in the second problem. what would i plug into A and B?

**math**

i have a few questions cosx + cosx =2secx ----- ----- 1+sinx 1-sinx cos(x-B)-cos(x-B) = 2sinxsinB csc2x= 1 secx cscx --- 2 cotx= cos5x+cos3x ----------- sin 5x-sin 3x

**science**

write up a conrol group and a experimaental group Example: Control:Plant with no fertilizer Eperimental groups:plant with fertilizer. The point of the control is to prove that the IV did something to the plant. Here's another example: http://skepdic.com/control.html

**science**

write up a conrol group and a experimaental group I will be happy to critique your work on this. You almost need a hypothesis to be tested to do this.