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1. The lenses of the eyeglasses are being cleaned using a nylon cloth. In doing so, which becomes positively charged? Negatively charged? Assume that the lenses are made of glass.
Write a shell script to determine if an input number is a palindrome or not.
monica has cooked n dishes and collected the data on the level of satisfaction for all the dishes from a guest. the guest returns an array, where the ith element of the array is the liking level of the ith dish. also, the time taken to cook the ith dish is i. like-to-time coefficient of a dish is calculated by multiplying the time taken to cook food with its liking level, i.e., input 2[i]. totally like-to-time coefficient is calculated by summing up all individual coefficients of dishes. you want the total like-to-time coefficient to be maximum. you can also remove some dishes, in which case, a new coefficient is calculated using the left dishes. find the maximum sum of all possible like-to-time coefficients.
an investigator predicts that dog owners in the country spend more time walking their dogs than do dog owners in the city. the investigator gets a sample of 21 country owners and 23 city owners. the mean number of hours per week that city owners spend walking their dogs is 10.0. the standard deviation of hours spent walking the dog by city owners is 3.0. the mean number of hours’ country owners spent walking their dogs per week was 15.0. the standard deviation of the number of hours spent walking the dog by owners in the country was 4.0. do dog owners in the country spend more time walking their dogs than do dog owners in the city?
Q3.A boy of mass 50 kg climbs 12steps each of height 20 cm in 50 seconds. Calculate the power used by the boy in climbing the stairs.
Given an array A of N integers and two integers X and Y, find the number of integers in the array that are both less than or equal to X and divisible by Y.
A fluid is heated reversibly at a constant pressure of 1.05 bar until it has a specific
volume of 0.1 m3
/kg. It is then compressed reversibly according to a law pv=constant to a
pressure of 4.2 bar, then allowed to expand reversibly according to the law
pv1.3=constant, and is finally heated at constant volume back to the initial conditions. The
work done in the constant pressure process is 515 Nm and the mass of the fluid present is
0.2 kg. Calculate the net work done on or by the fluid in the cycle and sketch the cycle on
a p-v diagram
1. You were informed that the oil spill that took place in the Kalba sea reached water desalination plants in the Fujairah area.
Formulate a hypothesis to state whether these bacteria will be able to thrive and function properly if they were to be used to treat oil spills in freshwater environments like the Fujairah desalination plants. Support your claim with scientific reasoning explaining why or why not.
Suppose the government sets a price floor for student books that is above the
competitive equilibrium price. Draw a graph to illustrate the welfare impacts of this policy.
According to the New York Times article, the Venezuelan government "imposes strict
price controls that are intended to make a range of foods and other goods more
affordable for the poor. They are often the very products that are the hardest to find"
Draw a graph to illustrate the welfare impacts of this policy and why the statement is true.
#340153 on Dec 2023