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A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. The time it takes for the ball to fall halfway is 1.6 seconds. Find the time it takes for the ball to fall from rest all the way to the ground.

17 years ago

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.4 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 5.0 x 1...

17 years ago

A voltaic cell at 25oC consists of Mn/Mn2+ and Cd/Cd2+ half-cells with the initial concentrations [Mn2+] = 0.100 M and [Cd2+] = 0.0100 M. Use the Nernst equation to calculate E for this cell. Cd+2(aq) + 2e- = Cd(s) . . . . . . Eo = -0.40 V Mn+2(aq) + 2e-...

16 years ago

The following cell was observed to have an emf of 2.25 volts at 25.0oC : Zn(s) | Zn2+(aq, 0.143 M) || Cl2(g, 0.548 atm) | Cl-(aq, ?M) | Pt(s) . Use tables of standard reduction potentials in Petrucci to calculate the concentration of chloride ion in the c...

16 years ago

3(-2/3 + 4/9) The 2/3 and 4/9 are fractions. How do I figure this out?

13 years ago

A square cushion measures 65 cm by 65 cm and 10 cm thick. Using a scale of 1:20 draw views of the cushion and label them with their measurements. Can someone help me with this? How would I go about drawing them and using the scale for measurements?

12 years ago

Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and sid...

12 years ago

I have to find the x (bottom length of the triangle) in a right triangle. angle A is 33.9 degrees angle B is 90 degrees and the height of the triangle is 3.3cm What formula do I use to figure out this question?

12 years ago

The angle of elevation of the sun is 22 degrees. How long is the shadow of a 15m tree, to the nearest metre?

12 years ago

The drawing shows a jet engine suspended beneath the wing of an airplane. The weight W with arrow of the engine is 11900 N and acts as shown in the drawing. In flight the engine produces a thrust T with arrow of 64500 N that is parallel to the ground. The...

9 years ago

what's my number i am between 10 and 200 multiple of 7 the middle digit is 0

3 years ago

An annuity due can use the ordinary annuity formula if the ordinary annuity formula is adjusted:

2 years ago

An annuity due can use the ordinary annuity formula if the ordinary annuity formula is adjusted: Group of answer choices Add one payment to total value Multiply results by 1+i Add two payments to total value Subtract three payments from total value

2 years ago

Jerome makes and sells his own energy drinks. He mixes a liquid drink mix with water to create his own special blend. Jerome usually uses 8 cups of water and 3 cups of drink mix. Tomorrow, there is a road race in town, however, and Jerome thinks he’ll be...

1 year ago

Which statement about converting metric units of measurement is true? Use the metric table to help answer the question. Metric Table kilo- hecto- deka- unit deci- centi- milli- 1,000 100 10 1 0.1 0.01 0.001 To find the number of hectometers in 87 centimet...

1 year ago

The average person’s speed when riding a bike along a street is 18 kilometers per hour. What conversion factor can be used to convert this speed to meters per hour? StartFraction 1 kilometer Over 1,000 meters EndFraction StartFraction 1 meter Over 1,000 k...

1 year ago

When converting measures, which is a true statement? If you are converting to a smaller unit, you should subtract. If you are converting to a smaller unit, you should multiply. If you are converting to a larger unit, you should add. If you are converting...

1 year ago

Maggie is converting 10,560 feet to miles by using StartFraction 10,560 feet Over 1 EndFraction times StartFraction 1 mile Over 5,280 feet EndFraction. What should be Maggie’s answer? Her answer should be One-half mile because there are 5,280 feet in a mi...

1 year ago

How many kilograms are in 76.2 grams? Use the metric table to help answer the question. Metric Table kilo- hecto- deka- unit deci- centi- milli- 1,000 100 10 1 0.1 0.01 0.001 0.000762 kilograms 0.00762 kilograms 0.0762 kilograms 0.762 kilograms

1 year ago

The fastest lion ever recorded ran approximately 402 meters in 18 seconds. Which expression shows how to correctly determine the speed in meters per second? 402 meters ÷ 18 seconds 18 seconds ÷ 402 meters 402 seconds ÷ 18 meters 18 meters ÷ 402 seconds

1 year ago

There are 28.35 grams in an ounce and 2.21 pounds in a kilogram. Miriam converted 7 kilograms to ounces, but her answer is not correct. What is the best explanation of her error? 7 kilograms times StartFraction 1000 grams Over 1 kilogram EndFraction times...

1 year ago

Dionna rode her skateboard at a speed of 10 miles per hour. Which statement is correct? If she covered 2.5 miles, she rode for 0.25 hours. If she covered 2.5 miles, she rode for 4 hours. If she covered 4 miles, she rode for 0.25 hours. If she covered 4 mi...

1 year ago

Rick is taking a 1-mile ride on his bicycle. For each rotation of his tire, he travels 72 inches. How many rotations will his tire make during the 1-mile trip? 73 rotations 83 rotations 780 rotations 880 rotations

1 year ago

Using feet or centimeters when measuring length is an example of using a unit of measure. unit of capacity. conversion. similarity.

1 year ago

Mei subscribed to a magazine at a rate of $24 for 12 issues. When she placed her order, Mei used a coupon that added 3 free bonus issues to her subscription. How did the coupon impact the cost per issue of Mei’s subscription? The coupon lowered the cost p...

1 year ago

Alexi divided 256 by 16. Which could he have been converting? 256 ounces to pounds 256 pounds to ounces 256 pounds to tons 256 tons to pounds

1 year ago

Which rate can you set StartFraction 7 miles Over 1 hour EndFraction equal to in order to find the distance traveled in 49 hours at 7 miles per hour? StartFraction 7 hours Over question mark miles EndFraction StartFraction 49 hours Over question mark mile...

1 year ago

The picture shows how much money Aaron has in his jacket pocket. If he uses $1.12 to buy a soda, how much money does he have left? 1 5 dollar bill, 3 1 dollar bills, 5 dimes, and 5 pennies $2.43 $7.43 $8.55 $9.67

1 year ago

Robyn opened a bank account to save her birthday money. It was paying 3.75% interest. Then the interest rate went up by 0.65%. How much is her new interest rate? 3.10% 4.30% 4.40% 10.25%

1 year ago

In the 1960s, the average price for an ear of corn was 4.17 cents. In the 1980s, the average price went up to 9.83 cents. How much did the average price go up? 4.97 cents 5.66 cents 7 cents 14 cents

1 year ago

Pilar wanted to use estimation to solve a decimal addition problem. She correctly used estimation to rewrite the problem as 12 + 3 + 5 + 6. What could her original problem have been? 12.38 + 4.45 + 4.14 + 6.7 12.5 + 3.05 + 5.23 + 0.6 11.5011 + 3.6 + 5.17...

1 year ago

What is the sum of 1.57 and 6.88? 7 tenths, 3 hundredths, and 5 thousandths 8 ones, 4 tenths, and 5 hundredths 5 ones, 4 tenths, and 8 hundredths 7 tenths, 4 hundredths, and 5 thousandths

1 year ago

Leora had some money in her wallet. She spent $18.62 buying groceries and had $43.55 left. How much money did she have in her wallet before she bought the groceries? $24.93 $35.93 $45.41 $62.17

1 year ago

Which choice correctly shows rounding to the hundredths place? 4.234 + 4.752 + 7.99 right-arrow 4.2 + 4.8 + 8.0 3.825 + 4.792 + 3.0805 right-arrow 3.82 + 4.79 + 3.82 3.824 + 4.765 + 1.732 right-arrow 3.81 + 4.77 + 3.80 3.8765 + 4.824 + 1.733 right-arrow 3...

1 year ago

Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made? She forgot to move the decimal point to the left after she added. She lined up the front numbers instead of the decimal places. She lined up the last numbers instead of the...

1 year ago

Ayala biked 12.76 miles on Sunday, 3.45 miles on Monday, and 6.52 miles on Tuesday. Over those three days, about how many miles did she bike in all? Estimate the answer by rounding to the nearest whole number. 21 miles 22.73 miles 22.9 miles 23 miles

1 year ago

The picture below shows Annie and her younger brother Tommy’s money. They want to combine their money to buy something together. How much do they have in all? Annie has 4 dollar bills, 11 dimes, and 4 pennies. Tommy has 3 times and 3 pennies. $4.81 $5.14...

1 year ago

Look at Andrea’s running journal. A 2-column table with 3 rows titled Total distance Andrea Ran (kilometers). Column 1 has entries Monday, Tuesday, Wednesday. Column 2 has entries 3.6, 4.705, 5.92. Explain how to add the three distances.

1 year ago

Andrea totaled the distance she ran on Monday, Tuesday, and Wednesday. Her sum is 14.225. A 2-column table with 3 rows titled Total distance Andrea Ran (kilometers). Column 1 has entries Monday, Tuesday, Wednesday. Column 2 has entries 3.6, 4.705, 5.92. R...

1 year ago

Explain the steps used to determine if Andrea's sum is reasonable.

1 year ago

Andrea ran 1.04 kilometers more on Wednesday than she ran on Thursday. A 2-column table with 3 rows titled Total distance Andrea Ran (kilometers). Column 1 has entries Monday, Tuesday, Wednesday. Column 2 has entries 3.6, 4.705, 5.92. How far did Andrea r...

1 year ago

Andrea wanted to know how much farther she ran on Tuesday than on Monday. Her work is below. A student showing work for 4.705 minus 3.6 = 4.669. The decimal for 3.6 is between the 0 and 5 in 4.705. What mistake did Andrea make when solving the problem? Sh...

1 year ago

Andrea wanted to run at least 3 more kilometers on Sunday than she ran on Friday and Saturday combined. Did she reach her goal? A 2-column table with 3 rows titled Total Distance Andrea Ran (kilometers). Column 1 has entries Friday, Saturday, Sunday. Colu...

1 year ago

Last year, Andrea ran about 120 kilometers during the months of March, April, and May. Estimate how many more kilometers she ran during those three months than she ran this year. Round to the nearest 1 kilometer. A 2-column table with 3 rows titled Total...

1 year ago

Explain how to estimate the sum of the distances ran in the three months to the nearest kilometer. A 2-column table with 3 rows titled Total Distance Andrea Ran (kilometers). Column 1 has entries March, April, May. Column 2 has entries 48.7, 31.2, 35.66.

1 year ago

thank you

12 years ago

769.69 cubic inches You can solve this by doing Radius x radius x height x pi 7 x 7 x 5 x 3.14159

12 years ago

8 girls If there are 20 children and for every 3 boys there is 2 girls that's 5 children. 5x4 = 20 so in every 5 kids there is 2 girls. So then do 4x2 = 8

12 years ago

his horses name is Tuesday.

12 years ago

90

8 years ago

sfds

7 years ago