A student repeats a reaction several times to test the effects of various changes on the reaction rate. The data table shows the results. How does
increasing the temperature of the system change the reaction rate?
Conditions
Original
Higher concentration
Higher temperature
Metal added
Reaction Time (5)
10 seconds
5 seconds
5 seconds
5 seconds
A. Increasing the temperature has no effect on the reaction rate.
B. Increasing the temperature increases the reaction rate.
C. More information is needed to determine what happens to the
reaction rate.
D. Increasing the temperature decreases the reaction rate.

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular