Nik

This page lists questions and answers that were posted by visitors named Nik.

Questions

The following questions were asked by visitors named Nik.

In 2004, the population of Mexico was 106.5 million. If Mexico's population continues to grow at an annual rate of 1.43%, then the population in 2015 will be 106.5 (1.0143)^11 million. a. find the predicted population in 2015 to the nearest tenth of a mil...
18 years ago
The length of a rectangular swimming pool is 2x-1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters. (2(5)-1) (5+2) (10-1) (9* 7) 63 My answer is 63. Do you agree?
18 years ago
A thin rod of length L and mass M rotates about a vertical axis through its center with angular velocity w. The rod makes an angle B with the rotation axis. Determine the angular momentum of the rod.
17 years ago
Water drives a waterwheel (or turbine) of radius 3.5 m. The water enters at a speed v_1 = 7.5 m/s and exits from the waterwheel at a speed v_2 = 4.0 m/s. a) If 84 kg of water passes through per second, what is the net torque? b) If the water causes the wa...
17 years ago
A uniform ladder of mass M and length L leans at an angle theta against a frictionless wall. If the coefficient of static friction between the ladder and the ground is U, determine a formula for the minimum angle at which the ladder will not slip.
17 years ago
A cube of side length 11.0 cm and made of unknown material floats at the surface between water and oil. The oil has a density of 810 kg/m^3. a)If the cube floats so that it is 70% in the water and 30% in the oil, what is the mass of the cube? b)What is th...
17 years ago
A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. How much force is required to hold a 7.5 cm diameter hose delivering 450 L/min through a 0.80cm diameter nozzle?
17 years ago
A mass m is at rest on the end of a spring of spring constant k. At t = 0 it is given an impulse J by a hammer. Write the formula for the subsequent motion in terms of m, k, J, and t. Assume x=0 at t=0. Thanks, -nik
17 years ago
An iron cube floats in a bowl of liquid mercury at 0 C. a) If the temperature is raised to 28 C, will the cube float higher or lower in the mercury? b)By what percent will the fraction of volume submerged change? Thanks
17 years ago
A bicycle pump is a cylinder 20 cm long and 3.0 cm in diameter. The pump contains air at 25.0 C and 1.0 atm. If the outlet at the base of the pump is blocked and the handle is pushed in very quickly, compressing the air to half its original volume, how ho...
17 years ago
how many months in 7 & 1/2 years?
15 years ago
Some athletes have taken drug tests to prove they are not on steroids. does this sentence contain a regular or irreagular verb, and why?
15 years ago
The yield-to-maturity on a bond is the interest rate you earn on your investment if interest rates do not change. If you actually sell the bond before it matures, your realized return is known as the holding period yield. Suppose that today, you buy a 12...
14 years ago
For what values of a and b that make the function f continuous everywhere. f(x)= {x−2x2−4 if x<2 ax2−bx−18 if 2< or =x<3 10x−a+b if x> or =3
14 years ago
5/(w-3) Solve for w. w= I don't understand. Please help. Did I copy this incorrectly or something?
12 years ago
A vertical pole is standing on a slope that is inclined at an angle 8 degrees to the horizontal and casts a shadow that is 82 ft. long down the slope. How tall is the pole if the angle of elevation of the sun is 28 degrees?
11 years ago
Because Foofy's score had a relative frequency of .02, she claims she had one of the highest scores on the exam. Why is she correct or incorrect?
9 years ago
What is the pH of the resulting solution if 10.0 mL of 1.0 M NaOH is added to 100 mL of this formic acid - sodium formate solution?
9 years ago
A recepie for pancakes call for 1.25 cups of milk. camper need 4 times recipe. How many quarts of milk will he need if 4 cups equal 1quart
8 years ago
Solve this number riddle: I am an odd number. I am less than 100. The sum of my digits is 12. I am a multiple of 15. What number am I? Is it 1?
8 years ago
What is the full form of HTML?
5 years ago
A charity organization had to sell 18 tickets to their fundraiser just to cover necessary production costs. They sold each ticket for \$45. Let y represent the net profit (in dollars) when they have sold x tickets. Which of the following information about...
4 years ago
Solve z if the problem is: 2(4z-1)=3(z+2)
3 years ago

Answers

The following answers were posted by visitors named Nik.