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Two parallel plates have equal and opposite charges. When space
was evacuated, the electric field was 2.80 x 105 V/m. When it
was filled with a dielectric material, the electric field was 1.20 x
105 V/m. What is the dielectric constant? What is the material?
A population consists of 4 number 3, 7, 11, 15 of sample size n=2 which can be drawn without replacement from the population.
a. Population mean
b. Population variance
c.population standard deviation
d. Mean of the sampling distribution of the sample means
e. Variance of the sampling distribution of the sample means
f. Standard deviation of the sampling distribution of the sample means
If the value you computed has an SI unit of 𝐶²m²/kgm², the quantity could be
a. potential difference c. electric field
b. dielectric constant d. capacitance
A parallel-plate capacitor has a capacitance C. What is the new
capacitance if a dielectric with K = 4 is inserted between its plates?
Create a class called Register with three instance variables: username, email, and password. These three pieces of information are all String. Your class should have a constructor that initializes the three instance variables and assumes that the provided values are correct. For each instance variable, provide a set and a get method. Create a displayInformation method in order to display the username, email, and password, separated by a comma ( , ). Create a test application called RegistrationInfoTest that demonstrates the Register class.
a rock is thrown horizontally from the top of a cliff 88m high, with a horizontal speed of 25m/s. with what velocity does the rock hit?
1. When the body consumes glucose, it requires oxygen gas. This process is also known as combustion, producing carbon dioxide gas and liquid water. Calculate the amount of carbon dioxide gas produced. Balanced chemical equation: C6H1206 + 6O2 6CO2 + 6H2O
2. From the data obtained on number 1, calculate the percentage yield if you have produced 0.50 g of CO2 in a laboratory experiment
A car travels 65.5 km North after an an hour and three-quarters. Calculate the velocity of the car?
A runner's speed is 15 m/s. What distance can he travel after 0.25min?
A population consists of the numbers 2, 4, 5, 9, and 10. A random sample of size 2 is
taken from the population.
1. Compute the number of samples using combination.
2. Complete the table on the right and compute the mean µ, variance
σ2 and standard deviation σ of the population.
3. Complete the table on the right and compute
the mean μx̄, variance σx̄2
, and standard
deviation σx̄ of the sampling distribution of
sample means.
#339914 on Dec 2023