Questions
2) Let v, w, and x be vectors in Rn. a) If v is the zero...

2) Let v, w, and x be vectors in Rn.
a) If v is the zero vector, what geometric object represents all linear
combinations of v?
b) Same question as a), except now for a nonzero v.
c) Same question as a) except now for nonzero vectors v and w (be care-
ful!).
d) Same question as a) except now for nonzero vectors v, w, and x (be
extra careful!).

In: Advanced Math

Let V be the set of positive reals, V = {x ∈ R : x >...

Let V be the set of positive reals, V = {x ∈ R : x > 0}. Define “addition” on V by x“ + ”y = xy, and for α ∈ R, define “scalar multiplication” on V by “αx” = x^α . Is V a vector space with these unusual operations of addition and scalar multiplication? Prove your answer.

In: Advanced Math

Suppose T ∈ L(V) a) Show that V = ImT0 ⊃ ImT1 ⊃ ImT2 ⊃ ......

Suppose T ∈ L(V)

a) Show that V = ImT0 ⊃ ImT1 ⊃ ImT2 ⊃ ...

b) Show that if m ≥ 0 is such that ImTm = ImTm + 1, then ImTm + k =ImTm + k + 1 for all k ≥ 0.

c) Show that if n = dim V, then ImTn = ImTn + 1 = ImTn + 2 = ....

In: Advanced Math

Let V and W be Banach spaces and suppose T : V → W is a...

Let V and W be Banach spaces and suppose T : V → W is a linear map. Suppose that for every f ∈ W∗ the corresponding linear map f ◦ T on V is in V ∗ . Prove that T is bounded.

In: Advanced Math

The potential of a particle is given as V (x) = -Vδ (x), with V being...

The potential of a particle is given as V (x) = -Vδ (x), with V being a positive number. Find the wave function and energy of the bounded states of this particle.

In: Physics

Let v and w be two nonzero vectors in R4 . Then v and w are...

Let v and w be two nonzero vectors in R4 . Then v and w are linearly independent if only if v is not a scalar multiple of w. True or false?

In: Advanced Math

DESIGN YOUR OWN EXPERIMENT As a future scientist, you have the opportunity to show your laboratory...

DESIGN YOUR OWN EXPERIMENT

As a future scientist, you have the opportunity to show your laboratory skills by designing your own experiment. Below you will be provided an experimental question. Your job will be to physically complete an experiment to test the hypothesis associated with your question. Once again, you must conduct the actual experiment and document it. Use your Experimental Planning Form to guide you through the experiment. Keep in mind the overall goal is to conduct a valid experiment using the scientific method!!!!!

Topic: What is the effect of salt on the boiling temperature of water?

Below are more helpful pointers of details of how to document your experimental process.

Title

This should be short, but describe the experiment.

Problem Statement

What scientific question are you planning to investigate?

Background Information

Write a short paragraph describing some background information that you have learned about the topic of your investigation.

Hypothesis

You will propose a possible outcome for your experiment that includes the data that will support your hypothesis.

Materials List

Make a list of all of the materials you will use to complete your experiment.

Include consumable supplies and lab equipment in your list.

Procedure

This section must be written in a step-by-step numbered format, so that another student who is not in your group can follow it.

You can draw a picture to show how you will set-up your experiment (optional).

SAFETY – List what lab safety equipment you will need.

Data Table

Your data table should include a title, column headings, units (if needed) and a place to record all data from your experiment.

You must show at least three trials of data for your experiment, so be sure to leave room in your data table for all trails.

Conclusion Paragraph 1 –

Your conclusion should state if your data DID support your hypothesis or your data did NOT support your hypothesis and why (use data for support).

Summarize your data in a few sentences.

Paragraph 2 –

Explain what you learned about the problem statement from the experiment.

List some errors you and your partner(s) could have made while conducting the experiment that could affect your results. YOU MAY NOT SAY “NOTHING WENT WRONG” OR “THE EXPERIMENT WENT WELL”. Think here!!!!

In: Biology

The potential in a region between x = 0 and x = 6.00 m is V...

The potential in a region between x = 0 and x = 6.00 m is V = a + bx, where a = 12.6 V and b = -7.90 V/m.

(a) Determine the potential at x = 0.
______ V

Determine the potential at x = 3.00 m.
______ V

Determine the potential at x = 6.00 m.
______ V

(b) Determine the magnitude and direction of the electric field at x = 0.

magnitude ________ V/m
direction +x or -x?


Determine the magnitude and direction of the electric field at x = 3.00 m.

magnitude ________ V/m
direction +x or -x?


Determine the magnitude and direction of the electric field at x = 6.00 m.

magnitude ________ V/m
direction +x or -x?

In: Physics

Problem 3. Throughout this problem, we fix a matrix A ∈ Fn,n with the property that...

Problem 3. Throughout this problem, we fix a matrix A ∈ Fn,n with the property that A = A∗. (If F = R, then A is called symmetric. If F = C, then A is called Hermitian.) For u, v ∈ Fn,1, define [u, v] = v∗ Au. (a) Let Show that K is a subspace of Fn,1. K:={u∈Fn,1 :[u,v]=0forallv∈Fn,1}. (b) Suppose X is a subspace of Fn,1 with the property that [v,v] > 0 for all nonzero v ∈ X. (1) Show that [−, −] defines an inner product on X. (c) Suppose Y is a subspace of Fn,1 with the property that [v,v] < 0 for all nonzero v ∈ Y. (2) If X is a subspace with property (1), prove that X + K + Y is a direct sum, where K is defined in part (a).

In: Advanced Math

The final product of the Calvin Cycle (the product that EXITS the Calvin Cycle, assuming successful...

The final product of the Calvin Cycle (the product that EXITS the Calvin Cycle, assuming successful carboxylation) is

3-phosphoglycerate

glyceraldehyde-3-phosphate

Ribulose-1,5-bisphosphate

sucrose

starch

To be in an active state, several enzymes of the Calvin Benson cycle require

An oxidizing environment to create disulfide bridges (-S-S-)

An oxidizing environment to break disulfide bridges (-SH, -SH)

A reducing environment to create disulfide bridges (-S-S-)

A reducing environment to break disulfide bridge (-SH, -SH)

The dry-weight mass of a plant (the weight of plant solids after water is removed) is from

Nutrients absorbed form the soil

Water absorbed from the soil

Carbon dioxide absorbed from the soil

Carbon dioxide absorbed from the air

Water absorbed from the air

Which statement is correct

Blue light (λ = 420 nm) has more energy than red

Blue light (λ = 680 nm) has more energy than red

Red light (λ = 420 nm) has more energy than blue

Red light (λ = 680 nm) has more energy than blue

  

The antennae complexes of photosynthesis gather light energy and channel it toward (choose ALL that apply)

Photosystem I

Photosystem II

Cytochrome b6f

Plastoquinone/plastiquinol

ATPase

Assuming linear electron flow from H2O to NADP+
(i.e., the Z-scheme) what is the theoretical minimum number of photons required to produce one molecule of O2 evolved (remember each water release a pair of electrons, it takes 2 H2O to produce O2)?

4

8

12

10

16

  

During CYCLIC electron flow, electrons from ferrodoxin are transferred to

Ferrodoxin NADP reductase

Photosystem II

Water

Cytochrome b6f

ATPase

What the heck am I talking about when I say “Reduction of plastoquinone to plastoquinol occurs on the stroma side of the thylakoid membrane, and oxidation of plastoquinol back to plastoquinone occurs on the lumen side of the thylakoid membrane”? This describes:

The proton motive force being used to convert ADP + Pi to ATP

Splitting water (H2O) into molecular oxygen (O2), 4 H+, and 4 e-

Using the proton motive force to move electrons across the membrane

Moving electrons down an energy gradient to move protons up a concentration gradient

Excitation of electrons in chlorophyll of photosystem I and II to initiate photochemistry

The Calvin-Benson cycle takes place predominantly in the

In the cytoplasm of mesophyll cells

In the stroma of chloroplast

In the lumen of chloroplasts

Across the plasma membrane of the mesophyll cells

Across the thylakoid membrane of chloroplasts

Put the following in the correct order for linear photosynthesis (the Z-scheme)

  

CF-type ATPase


  

Plastoquinone/plastiquinol


  

Photosystem II

  

Photosystem I


Cytochrome b6f


  

Plastocyanin

In: Biology