Wednesday

September 28, 2016
Total # Posts: 9

**Statistical work**

Suppose that a principal of a local high school tracks the number of minutes his students spend texting on a given school day. He finds that the distribution of minutes spent texting is roughly normal with a mean of 60 and a standard deviation of 20. a. the percentage of ...

*April 21, 2016*

**science**

Thanks I got them all right

*February 28, 2014*

**science help plzzz**

Thank I got them all right

*January 22, 2014*

**science help plzzz**

Thanks jack I got 100% to

*January 17, 2014*

**Momentum**

A 8.4 kg laundry bag is dropped from rest at an initial height of 7.00 m. (a) What is the speed of Earth toward the bag just before the bag hits the ground? Use the value 5.98 1024 kg as the mass of Earth. (b) Use your answer to part (a) to justify disregarding the motion of ...

*May 16, 2012*

**Momentum**

A 6.0 g coin moving to the right at 21.0 cm/s makes an elastic head-on collision with a 20.0 g coin that is initially at rest. After the collision, the 6.0 g coin moves to the left at 12.5 cm/s. a.) Find the final velocity of the other coin in centimeters. b.) Find the amount ...

*May 16, 2012*

**Momentum**

A 1400 kg car moving south at 11.5 m/s collides with a 2800 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.24 m/s to the north. Find the velocity of the 2800 kg car before the collision.

*May 16, 2012*

**Momentum**

A 4.4 g bullet is fired into a block of wood with a mass of 21.3 g. The wood block is initially at rest on a 1.3 m tall post. After the collision, the wood block and bullet land 2.4 m from the base of the post. Find the initial speed of the bullet.

*May 16, 2012*

**algebra 1 page 167 did you hear about...**

i need help mine is different the answers that are availbe tweet his selling birdseed udder the singing started fed butter cows milk farmer and wings who moo cheep beef

*February 22, 2009*

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