i used this coding for select image from database but the image did not retrieve from...

i used this coding for select image from database but the image did not retrieve from database and did not display  

what is the issue ?

include "connect.php";
                               $sql= "select fileTmpPath from picture where ID='3'";
                                   $result = mysqli_query($conn,$sql);
                                   $pic= mysqli_fetch_array($result);
                                  
echo " <img src=" .$pic["fileTmpPath"]."' />";
                                   ?>

In: Computer Science

Experiment A B C intial rate of formation of D (M/min) 1 2.0 2.0 2.0 2.0...

Experiment

A

B C

intial rate of formation of D (M/min)

1 2.0 2.0 2.0 2.0
2 2.0 1.0 2.0 2.0
3 4.0 5.0 2.0 8.0
4 2.0 4.0 1.0 1.0
5 3.0 4.0 4.0 ?

a) Determine the rate law.

b) Calculate the rate constant. Specify units.

c) Calculate the rate of reaction for experiment 5.

d) How is the rate of appearance of D related to the disappearance of B?

e) In experiment 3, what is the rate of disappearance of B?

In: Chemistry

Provide examples of best practice and poor practice from your own experience of website design and...

Provide examples of best practice and poor practice from your own experience of website design and justify your thinking with evidence.

In: Computer Science

Exercise 1.40 You are given two vectors A⃗ =−3.00ι^+6.00j^and B⃗ =4.00ι^+2.00j^. Let the counterclockwise angles be...

Exercise 1.40
You are given two vectors A⃗ =−3.00ι^+6.00j^and B⃗ =4.00ι^+2.00j^. Let the counterclockwise angles be positive.
Part A
What angle does A⃗  make with the +x-axis?

θ1=

SubmitMy AnswersGive Up
Part B
What angle does B⃗  make with the +x-axis?

θ2=

SubmitMy AnswersGive Up
Part C
Vector C⃗  is the sum of A⃗  and B⃗ , so C⃗ =A⃗ +B⃗ . What angle does C⃗ make with the +x-axis?

θ3=

In: Physics

Q1; 0.4 mL of serum were added to 1.6 mL diluent and mixed. 0.4 mL of...

Q1; 0.4 mL of serum were added to 1.6 mL diluent and mixed. 0.4 mL of this mixture were then added to 1.6 mL of diluent and mixed. This process was repeated several times. What is the df in the fourth tube?

Q2: Give three examples of qualitative tests and three examples of semiquantitative tests

Q3:There are six domains of health care quality; mention any three domains

Q4;What is false positive results and false negative results? Which of these values affect sensitivity and specificity of the method

In: Biology

a. Assume that all of the pendulum’s mass M is contained in the “bob” at the...

a. Assume that all of the pendulum’s mass M is contained in the “bob” at the end of the pendulum rod. Write Newton’s 2nd Law for the force balance along the circular arc traced out by the pendulum bob as it swings back and forth. [Hint: You can relate the position of the pendulum bob along its arc to the angle ! formed by the pendulum rod and the vertical line when the pendulum bob is at the “base” of the arc. It may help to draw this.]

b. Using the “small angle approximation” sin(theta) ≈ theta(t) and assuming that the pendulum bob is released from rest at an angle theta(zero), show that theta(zero) = (theta(zero))cos (omega t) solves the force balance equation in (a) for a particular value of omega. What value is it?

c.  The period of the pendulum corresponds to the time it takes the pendulum to oscillate through one cycle, i.e., from its initial position and back. Use the result in b to find the period. You should find the period to be a numerical factor times our estimate of the period from dimensional considerations.

In: Physics

I need a lesson plan for preschool children age 4-5 about how to count numbers until...

I need a lesson plan for preschool children age 4-5 about how to count numbers until the 20.

If the topic is numbering, I need descriptions. Farming Theorist & Concept. For example one of Piaget's theory with one source and what is the Outcomes and I need an assessment plan.

In: Psychology

Table 1                                                    &

Table 1                              
                              
   DATA               CALCULATIONS          
L (mm)   Rrm (Ω)   ΔL (mm)   Rhot (Ω)   Trm (C°)   Thot (C°)   ΔT (C°)  
Copper 699   112 0.79 9.2 22.5   84.75 62.25  
Steel 699   112 0.64 9.437 22.5   84 61.5  
Aluminum 699   112 1.07 9.767 22.5   83 60.5  
                              
1. Use the Conversion Table at the end of the 'Instructions' section, or the one on the top of the expansion base, to convert your thermistor resistance measurements, Rrm and Rhot, into temperature measurements, Trm and Thot. Record your results in the table.                                
                              
                              
     2. Calculate ΔT = Thot – Trm. Record the result in the table.                              
                              
3. Using the equation ΔL = αL ΔT, calculate α for copper, steel, and aluminum.                              
                              
αCu =   1.81556E-05               αsteel =   1.48877E-05      
                              
αAl =   2.53018E-05                          

1. Look up the accepted values for the linear expansion coefficient for copper, steel, and aluminum. Compare these values with your experimental values. What is the percentage difference in each case? Is your experimental error consistently high or low?                                
                              
   2. On the basis of your answers in question 1, speculate on the possible sources of error in your experiment. How might you improve the accuracy of the experiment?                               
                              
                              

       3. From your result, can you calculate the coefficients of volume expansion for copper, aluminum, and steel? (i.e. ΔV = αvol V ΔT)                                
                              
                              

                      

In: Physics

Directions Create a class that computes the lift and drag of a rectangular planform wing. Lift...

Directions Create a class that computes the lift and drag of a rectangular planform wing. Lift can be calculated with the following equation: lift = Cl * A * 0.5 * rho * V2 Cl is the lift coefficient; it is dimensionless A is the area of the wing in m2 rho is the air density, in kg/m3 , for the altitude the wing is flying V is the velocity in m/s Drag can be calculated with the following equation: Drag = Cd * A * 0.5 * rho * V2 Cd is the drag coefficient; it is dimensionless The other variables are the same as the lift equation. Notes: Cl and Cd vary with the wing angle of attack. rho varies with altitude. A rectangular planform wing is 85% efficient when compared to the optimal elliptical wing.

In: Computer Science

You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 2.0090E+4 J...

You place your lunch leftovers in the refrigerator. Suppose the refrigerator needs to remove 2.0090E+4 J of thermal energy from your lunch to cool it to the temperature of the inside of the refrigerator. In the meantime, this means the refrigerator produces 2.7959E+4 J of thermal energy that it expels into the kitchen as a result. What is the total work done by the compressor motor in the refrigerator? (Ignore any thermal loses due to friction in the motor.)

What is the Coefficient of Performance for the refrigerator?

Your refrigerator actually acts like a heater in your kitchen. Suppose you have a small electric space heater that has a power output of 1.2kW. How long would this heater have to run to produce the same amount of heat as the refrigerator produced while cooling your leftovers?

It takes electricity to run the motor on the refrigerator. If your cost of electricity is 13 cents per kilowatt*hour, how much does it cost (in cents - do not enter units) to cool your lunch down?

In: Physics

A) What should his speed be at the top of the ramp to make it to...

A) What should his speed be at the top of the ramp to make it to the edge of the bank? B) if his speed was half the value found in part A where would he land?  A physics professor did daredevil stunts in his spare time. His last stunt was an attempt to jump across a river on a motorcycle (the figure (Figure 1) ). The takeoff ramp was inclined at 53.0 ?, the river was 40.0 m wide, and the far bank was 15.0 m lower than the top of the ramp. The river itself was 100 m below the ramp. You can ignore air resistance.

In: Physics

Please write a very brief reflection about "it's in her eyes, an unspoken pain in laboring...

Please write a very brief reflection about "it's in her eyes, an unspoken pain in laboring patients" by laurie van damme

In: Nursing

**SAP Project Manager What they do What tasks they perform What their career path could be...

**SAP Project Manager

  • What they do
  • What tasks they perform
  • What their career path could be
  • How much they earn

**Ten sentences for each points

In: Computer Science

Assume you are 25 and earn ​$31,000 per​ year, never expect to receive a​ raise, and...

Assume you are 25 and earn ​$31,000 per​ year, never expect to receive a​ raise, and plan to retire at age 55. If you invest 5 percent of your salary in a​ 401(k) plan returning 11 percent​ annually, and the company provides a​ $0.50 per​ $1.00 match on your contributions up to 3 percent of​ salary, what is the estimated future value of your​ 401(k) account? Once you​ retire, how much can you withdraw monthly if you want to deplete your account over 30 ​years? 

In: Finance

A lidar (laser radar) gun is an alternative to the standard radar gun that uses the...

A lidar (laser radar) gun is an alternative to the standard radar gun that uses the Doppler effect to catch speeders. A lidar gun uses an infrared laser and emits a precisely times series of pulses of infrared electromagnetic waves. The time for each pulse to travel to the speeding vehicle and return to the gun is measured. In one situation a lidar gun in a stationary police car observes a difference of 1.23 10-7 s in round-trip times for two pulses that are emitted 0.440 s apart. Assuming that the speeding vehicle is approaching the police car essentially head-on, determine the speed of the vehicle.

In: Physics