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Answers by brenda
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What is the difference between a vector and scalar quantity?
answered
Sep 3, 2019
in
General Knowledge
|
8,394
views
vector
scalar
quantity
magnitude
direction
2
like
0
dislike
What is the voltage across an LED if its resistance is ${6.5}{\Omega}$ whan a current of ${200}{mA}$ flows?
answered
Sep 3, 2019
in
General Knowledge
|
366
views
voltage
led
resistance
current
flows
1
like
0
dislike
A lamp is connected to a 24-volt source which provides a current of 0.4 ampere. What is the resistance of the lamp?
answered
Sep 3, 2019
in
General Knowledge
|
599
views
voltage
current
resistance
physics
length
2
like
0
dislike
If a ${9}{V}$ battery is connected to a circuit of resistance ${45}{\Omega}$, what current flows?
answered
Sep 3, 2019
in
General Knowledge
|
405
views
resistance
voltage
current
physics
length
1
like
0
dislike
What is the electrostatic force between two small spheres possessing net charges of +2.0 µC and -3.0 µC respectively, if the distance between them is 10.0 meters?
answered
Sep 3, 2019
in
General Knowledge
|
1,015
views
charge
negative
electrical-force
electrostatic-force
distance
2
like
0
dislike
What is the electrostatic force between a charge with +2.0 x 10 -7 C and a charge of +1.0 x 10 -7 C separated by a distance of 0.05 meters?
answered
Sep 3, 2019
in
General Knowledge
|
699
views
charge
negative
electrical-force
electrostatic-force
distance
1
like
0
dislike
Determine the magnitude of the gravitational force of attraction between a 400-kg mass and an 800-kg mass separated by a distance of 0.005 meters.
answered
Sep 3, 2019
in
General Knowledge
|
1,000
views
gravitational-force
distance
magnitude
mass
1
like
0
dislike
The force of attraction between a 2,000-kg mass and a 4,000-kg mass is 4 x 10 -12 Newtons. Determine the distance separating the two objects.
answered
Sep 3, 2019
in
General Knowledge
|
647
views
mass
distance
gravitational-force
1
like
0
dislike
Calculate the gravitational attraction between the Earth and the Moon.
answered
Sep 3, 2019
in
General Knowledge
|
6,297
views
distance
mass
magnitude
gravitational-force
earth
moon
1
like
0
dislike
Calculate the gravitational force between the moon and earth?
answered
Sep 3, 2019
in
General Knowledge
|
1,086
views
gravitational
force
moon
earth
1
like
0
dislike
What does the gravitational force equation explain?
answered
Sep 3, 2019
in
General Knowledge
|
2,686
views
gravitational
force
equation
2
like
0
dislike
If the resistors are wired in series, find the equivalent resistance.
answered
Sep 3, 2019
in
General Knowledge
|
515
views
series
resistor
circuit
battery
resistance
1
like
0
dislike
Why does light travel and permeate through glass?
answered
Sep 3, 2019
in
General Knowledge
|
1,206
views
light
frequency
travel
glass
permeate
2
like
0
dislike
A refrigerator with a resistance of 200 Ω has 0.5 A running through it. Determine the potential difference used to operate the refrigerator.
answered
Sep 2, 2019
in
General Knowledge
|
451
views
resistance
length
potential-difference
current
physics
voltage
0
like
0
dislike
A current of 0.8 A travels through a computer using a potential difference of 240 V. Determine the electrical power used by the computer.
answered
Sep 2, 2019
in
General Knowledge
|
356
views
resistance
voltage
potential-difference
power
current
0
like
0
dislike
If Sphere A has a charge of +6e and is brought into contact with Sphere B which has a charge of +2e, determine the charge, in coulomb, on each sphere after contact.
answered
Sep 2, 2019
in
General Knowledge
|
554
views
physics
attract
opposite
net-charge
charges
1
like
0
dislike
What is spatial covariance?
answered
Aug 26, 2019
in
Data Science & Statistics
|
217
views
spatial
covariance
statistics
arcgis
2
like
0
dislike
What is the definition of probability?
answered
Aug 26, 2019
in
Data Science & Statistics
|
178
views
mean
probability
definition
1
like
0
dislike
What is the similarity search algorithm in spatial statistics?
answered
Aug 26, 2019
in
Data Science & Statistics
|
268
views
statistics
spatial
arcgis
toolbox
0
like
0
dislike
How is statistics misused?
answered
Aug 26, 2019
in
Data Science & Statistics
|
79
views
statistics
mis-use
difference
1
like
0
dislike
What is the cosine similarity index?
answered
Aug 26, 2019
in
Data Science & Statistics
|
203
views
statistics
spatial
cosine
similarity
index
0
like
0
dislike
What is the formula of finding the standard deviation of a binomial distribution?
answered
Aug 26, 2019
in
Data Science & Statistics
|
2,498
views
standard-deviation
binomial
distribution
variance
mean
1
like
0
dislike
Derive mean and variance of Poisson distribution.
answered
Aug 26, 2019
in
Data Science & Statistics
|
1,788
views
mean
standard-deviation
variance
poisson
distribution
1
like
0
dislike
What is the difference between poisson and normal distribution?
answered
Aug 26, 2019
in
Data Science & Statistics
|
708
views
distribution
standard-deviation
normal
poisson
1
like
0
dislike
What is the relationship between standard deviation and variance?
answered
Aug 26, 2019
in
Data Science & Statistics
|
2,264
views
statistics
variance
standard-deviation
dispersion
