1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NNADVOKAT [17]
2 years ago
11

Item 4 A student conducts an experiment to determine how the temperature of water affects the time for sugar to dissolve. In eac

h trial, the student uses a different amount of sugar and a different temperature of water. What is wrong with this experimental design? A.The student did not change enough variables. b.The student does not have a dependent variable. C.The student changed too many variables. D. The student needs to perform more trials.
Physics
1 answer:
expeople1 [14]2 years ago
3 0

Answer:

The Answer is C. the student changed too many variables.

Explanation:

For the quiz in K12

You might be interested in
NEED THE ANSWER PLZ<br><br>What are lanthanides?
geniusboy [140]
It is the the ecrins of light
5 0
3 years ago
How much energy is stored in the electric field of a 50-μm-diameter cell with a 7.0-nm-thick cell wall whose dielectric constant
Nady [450]
:<span>  </span><span>Under the assumption that a cell is made up of two concentric spheres you find the surface are of the inside sphere which will be your A. 

You already have your separation and dielectric constant so just use the formula you stated towards the end of your question and you get 8.93x10^-11 Farads which is about 89pF</span>
7 0
3 years ago
Read 2 more answers
Which of the following best represents potential energy being converted to kinetic energy? A thrown baseball lands on the ground
skelet666 [1.2K]
If I am correct a <span>child holds a toy above her head and then lets it fall to the ground. </span>
4 0
3 years ago
Any fracture or system of fractures along which Earth moves is known as a
azamat
The answer is B.) Stress 
7 0
3 years ago
A electric heater that draws 13.5 a of dc current has been left on for 10 min. how many electrons that have passed through the h
kicyunya [14]
By definition, Ampere is a unit of current which is a measure of the amount of charge passing through a point in a circuit per unit  of time, with an equivalent charge of 1.602 x 10^(-19) Coulomb per electron. To determine the number of electrons passing through the heater, we use the definition of the current. We calculate as follows:

13.5 A = 13.5 C per second
Charge = 13.5 C/s (10 min) ( 60 s / 1 min)
Charge = 8100 C 

Number of electrons = 8100 C / 1.602 x 10^(-19) C per electron
Number of electrons = 5.1 x 10^22 electrons

Therefore, there are 5.1 x10^22 electrons that assed through the heater for 10 minutes.
3 0
3 years ago
Other questions:
  • Hi! Can you help me? :) A satellite's speed is 10,000 m/s. After 1 min, it is 5,000 m/s. What is the satellite's acceleration? T
    11·2 answers
  • You have a beaker with a layer of olive oil floating on top of water. A ray of light travels through the oil and is incident on
    12·1 answer
  • Scientists believe the universe follows a set of “rules” known as?
    12·1 answer
  • Hi! Plz help? Which term identifies the effects of the buildup of stationary electric charges on everyday objects caused by the
    9·1 answer
  • if a swimmer is traveling at a constant speed of 0.85 m/s how long would it take to swim the length of 50 meter olymic sized poo
    13·1 answer
  • A diver who is 10.0 m underwater experiences a pressure of 202 kPa. If the diver's surface area is 1.50 m.sq, with how much tota
    10·2 answers
  • PLEASE HELP ME AND REALLY NEED THIS ANSWER QUIKLY
    6·1 answer
  • What is the prefix notation of 0.0000738?​
    12·2 answers
  • What is the difference in KE between a 52.5 kg person running 3.50 m/s and a 0.0200 kg bullet flying 450 m/s?
    7·1 answer
  • STOP WHAT UR DOING!!! TAKE A MOMENT TO THINK ABOUT THESE!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!