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Describe the identifiable physical properties of substances and explain how changes in these properties can occur without changing the chemical nature of the substance. Mass & density are 2 properties of matter. When water freezes it expands making it les...

18 years ago

the least common multiple of 10,24

15 years ago

Body A on an inclined plane weighs 102 N, and body B attatched to Body A by a rope and a frictionless, massless pulley weighs 35 N. The coefficients of friction between A and the incline are Us= .56 and Uk= .25 . Angle is 40°. Let the positive direction o...

15 years ago

Two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring-loaded gun that is mounted on a table. The target box is horizontal distance D = 1.60 m from the edge of the table, see the figure. Bobby c...

15 years ago

Q.1)If one zero of the polynomial 3x2-kx-2 is 2 find the other zero.allso find the value of k. Q.2)If sum of the zeroes of the polynomial x2-x-k(2x-1) is 0,find the value of k Q.3)If 2 and 3 are the zeroes of the polynomial 3x2-2kx+2m find the values of k...

15 years ago

Q.1)Find hcf and lcm of the following using fundamntal theorem of arithematic 12,720 and 540. Q.2)Find the greatest number which divides 418,1354 and 2146 exactly leaving remainder 10 in each case. Q.3)If product of HCF and LCM of two numbers is 5120.One...

15 years ago

Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probabili...

15 years ago

Find the points where the tangent line is horizontal or vertical. Find the area under one period of the curve. x= r(deta - cos deta) Y= r(1- sin deta)

15 years ago

Find a Cartesian equation for r= 3sin deta

15 years ago

A 20.0 g copper ring at 0.000°C has an inner diameter of D = 2.54000 cm. An aluminum sphere at 108.0°C has a diameter of d = 2.54508 cm. The sphere is placed on top of the ring, and the two are allowed to come to thermal equilibrium, with no heat lost to...

15 years ago

how much water (in mL's) needs to be added to 330 mL's of a 3.33 molar solution of lithium bromide to make the solution 1.44 molar

15 years ago

how can a bondholder can estimate the effective interest rate return on the total cost of the investment, including commissions.

14 years ago

A ball is thrown straight up with an initial speed of 60 m/s. How high does it go? Assume the accelera- tion of gravity is 10 m/s22 2)How long is it in the air?

14 years ago

A ball is thrown vertically upward with a speed of 23.7 m/s from a height of 2.0 m. How long does it take to reach its high- est point? The acceleration of gravity is 9.81 m/s2 2) How long does the ball take to hit the ground after it reaches its highest...

14 years ago

A French artillerist, Captain A. Le Duc, developed an empirical formula for the velocity of a projectile in terms of the distance traveled by the projectile in the bore. For a 155-mm gun this equation is v = 3309s /(70 + s) where s is the distance travele...

14 years ago

The magnitude of the velocity of a particle which starts from rest 2 ft below the origin when t = 0 and moves along a vertical axis is directly proportional to the time after starting. The displacement of the particle during the time interval from t = 1 s...

14 years ago

a wheel revolves about a fixed horizontal axis through O. During a certain interval of time, the angular velocity (which initially is 20 rad per second clockwise) changes uniformly at such a rate that the angular displacement is 60 rad counterclockwise, a...

14 years ago

a wheel revolves about a fixed horizontal axis through O (the center). During a certain interval of time, the angular velocity (which initially is 20 rad per second clockwise) changes uniformly at such a rate that the angular displacement is 60 rad counte...

14 years ago

what impulse occurs when an average force of 10n is exerted on a cart of 2.5 s? What change in momentumdoes the cart undergo/ If the mass of the cart is 2K and the cart is initally at rest, calculate it's final speed.

14 years ago

The distance from Earth to the Moon is approximately 240,000 .What is this distance in meters? Express your answer using two significant figures.

14 years ago

(2x^3 - x^2 - 24x + 12) divided by (2x - 1)

13 years ago

The area of a rectangular piece of fencing is represented by the equation w(4w+4)=3, where w is the width of fencing in yards. Find the width of the fencing.

13 years ago

What is the value to 2 decimal places of the following integral when a = 24, b = 56, c = 2 and d = 59?

13 years ago

-7(4x+2)+5x=170

12 years ago

5. A professor teaching introductory psychology gave the grades that follow. According to the normal curve, she should have given about 4% A’s, 14% B’s, 64% C’s, 14% D’s, and 4% F’s. Do a Chi-Square to determine if the actual grade assignment significantl...

12 years ago

What is the parallel structure of this sentence? To install new carpeting, workers must first remove the old carpet, prepare the surface, and then lay down the matting

12 years ago

find the absolute maximum and minimum of sqrt 3 x^2/36 + (1-x)^2/32

12 years ago

1. Which of the following caused people in Middle America to settle down into villages? A. The animals they were hunting died out. B. The plants they gathered were destroyed in a natural disaster. C. The transportation method they were using to hunt and g...

6 years ago

this is my last couple of questions.. 1. Why is there a digital divide in many Central American countries? A. Residents lack access to the internet. B. There is a lack of good infrastructure. C. Air pollution is widespread.--------- D. There are a high nu...

6 years ago

A manufacturer of projection TVs must ship a total of at least 1000 TVs to its two central warehouses, x to the first warehouse and y to the second warehouse. Each warehouse can hold a maximum of 750 TVs. The first warehouse already has 150 TVs on hand, w...

5 years ago

what are some famous climbing expeditors of the Andes Mountains and their dates

16 years ago

yeah that is word for word

14 years ago

China 1% ethiopia 1%

10 years ago

what an assumption - perhaps evan has 2 siblings that each lost a leg in war then (6 x 2) + (2 x 1] = 12 and 6 + 2=8

10 years ago

It would be 8 for science.

9 years ago

21.68 ft

7 years ago

P=2L+2W solve for l

3 years ago