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
UkoKoshka [18]
3 years ago
15

Police radar equipment is used to detect the speed of objects. In one trial, the radar equipment records a stationary tree as tr

aveling at 6 mph, although in another trial it records the tree as traveling at 0 mph. Which of the following measurement problems exist in the radar equipment? Correct Answer(s) reliability construct validity accuracy
Physics
1 answer:
Brut [27]3 years ago
8 0

Answer:

reliability

accuracy

Explanation:

If a reading of a measurement is consistently the same then the measurement is reliable.

If a reading of measurement is close the actual value of the measurement then the reading is accurate.

Here, a stationary tree shows reading 6 mph once and 0 mph another instant. So, neither the reading of a measurement is consistent not the reading of measurement is close the actual value.

Hence, the radar has problems in its reliability and accuracy

You might be interested in
The radius of the earth is 6378 km. What is the diameter of the earth in meters?
Nesterboy [21]
To determine the diameter of the earth in metres first multiply the original value by 2.

6378 X 2 = 12 756 km.

Then convert km - m

1 km = 1000 m
12 756 km = ? m

12 756 • 1000 = 12 756 000 = 12 756 000 m or 1.2756 X 10 ^ 7 m

The final solution for the diameter is 1.2756 X 10 ^ 7 m.
7 0
3 years ago
Eddie set up a science experiment with plants. He bought three small tomato plants, all about the same size and height, and set
Elza [17]

Answer:

The frequency of watering

Explanation:

The manipulated variable in this case is the frequency of adding water to the experimental plants.

While the first plant can be said to have a watering frequency of a day, the second had a watering frequency of 2 days while the third plant had a watering frequency of 3 days.

The experiment must have been set up to determine the effects of frequency of watering on the growth of tomato plants.

8 0
3 years ago
Before using a string in a comparison, you can use either the To Upper method or the To Lower method to convert the string to up
Burka [1]

Answer:

True

Explanation:

If there's no preference over the string case (upper case or lower case), one can convert both strings to upper case or to lowercase and then compare the converted strings to test if they're equal or not.

An Illustration is

string a = "Boy"

string b = 'bOy"

if(a.ToUpper() == b.ToUpper() || a.ToLower() == b.ToLower())

{

Print "Equal Strings"

}

else

{

Print "Strings are not equal";

}

The above will first convert both strings and then compare.

Since they are the same (after conversion), the statement "Equal Strings" will be printed, without the quotes

5 0
3 years ago
The Viking landers sent back pictures of the reddish-colored, barren, rocky, windswept surface of ____. a. Mercury c. Uranus b.
Zarrin [17]
D) Mars 


I hope this helps, Good luck! (:
8 0
3 years ago
Read 2 more answers
The nuclear particle carrying a charge of +1e is the
babunello [35]
The nuclear particle is a proton
6 0
2 years ago
Read 2 more answers
Other questions:
  • A particular 12 V car battery can send a total charge of 110 A·h (ampere-hours) through a circuit, from one terminal to the othe
    10·1 answer
  • if an objects velocity doesn't tell us about the net force on an object, what characteristic of its motion does?
    15·2 answers
  • An object of mass 2kg is on an incline where there is an applied force of 15N. The
    15·1 answer
  • The minimum cooking temperature for eggs that will be served immediately is
    7·2 answers
  • Which of the following methods of improving air quality does not require advanced technology?
    9·1 answer
  • A uniform steel rod of cross-sectional area A is attached to rigid supports and is unstressed at a temperature of 458F. The stee
    13·2 answers
  • A battery powers a circuit for a small noisy fan. The fan's motor gets warm as it turns. What energy transformations are
    5·2 answers
  • Which is a substance that takes the shape and volume of its container?
    9·1 answer
  • 1. What is the momentum of a 1550 kg car that is traveling leftward at a velocity of 15 m/s?
    11·1 answer
  • When a planet is at its slowest orbital speed, its radius vector sweeps an area, A, in 45 days. What area will the radius vector
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!