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A tennis ball is thrown upwards with sufficient speed to reach a height of 12 m.
(i) What is the kinetic energy of the tennis ball at a height of 12 m?
(ii) Calculate the speed of the tennis ball when it reaches a height of 6 m.
A stone is thrown horizontally off a 25 m high building. It hits the ground a distance of 20 m from the foot of the building. What is the initial velocity of the stone?
Given two polynomials A and B, write a program that adds the given two polynomials A and B.
A signal is transmitted from a ship and an echo is received from an object below the ship 4 s later. Calculate the distance of the object from the ship if the speed of sound in water is 1400 m/s.
What is the range of the wavelengths of light that is visible to the human eye?
At what temperature will salt solution boil if 20 g salt (NaCl) is added to 1.5 kg of water?
Note: Remember that NaCl is a strong electrolyte and dissociates to Na+ and Cl- , respectively.
At what temperature will salt solution boil if 20 g salt (NaCl) is added to 1.5 kg of water?
Note: Remember that NaCl is a strong electrolyte and dissociates to Na+ and Cl- , respectively.
Form a group of five students or five members of your Family. Get the height (in cm) of each member of the group. Use the properties in solving for the mean , variance and standard deviation of sampling distribution of the sample means.
a. Compute the population mean.
b. Complete the population variance.
c. Find the population standard deviation.
d. List all possible samples of size 2 which can be drawn with replacement and their corresponding means.
e. Construct the sampling distribution of the sample means.
f. Find the mean of the sampling distribution of means.
g. Find the mean of the sampling distribution of means.
h. Find the standard deviation of the sampling distribution.
A 20 kg brick stands upright on the ground as shown. What is the pressure it exerts on the ground?
Specific of brick : Height ( 10cm) Length (20cm) Width (5cm)
Write a program to write 5 book records in a file. Program should also perform random access in the file, after taking input for a particular record number to read and it should also perform random record overwriting after taking input of new record and the record number to overwrite. [Attributes of book: Book_id, Book_price, Book_name, Book_author_name]
