# Posts by Nellie

Total # Posts: 22

**physics**

a) How much work must be done on a particle with a mass of m to accelerate it from rest to a speed of 8.4×10−2 c ? (Express the answer in terms of mc^2.) b)How much work must be done on a particle with a mass of m to accelerate it from a speed of 0.900c to a speed ...

**intermediate algebra**

A model rocket Is launched from a height of 50ft. The formula h=-16t^2+70t +50 describes the rocket's height,h,in feet seconds after it was launched. How long will it take the rocket to reach to reachthe ground?

**Have I done this right**

write the equations in logarithmic form 216 = ^63 answer In(e^4.5) 49 = (1/7) ^-2 answer 2=log(3x)

**Can some guide me**

An artifact was found and tested for its carbon-14 content. If 71% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.)

**math**

Express the fractoin 17/20 as a decimal and as a percent

**math**

simplify epression 6(6)+ 6(4)

**math**

simplify expression 6(6)+ 6(4)

**algebra**

17 17 - 6x10 ,2+12

**Physics**

Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall in the world, dropping 979 m (3212 ft). Assume that it takes 14 s for the water to fall from the lip of the falls to the river below. If the water lands 60 m from the base of the vertical cliff, what ...

**physics**

The bunny is initially hopping east at 7 m/s when it first sees the fox. Over the next half second the bunny changes its velocity to west at 12 m/s and escapes. What was the bunny's average acceleration (magnitude and direction) during this half-second interval?

**math**

lisa made a long-distance telephone call to her friend Jane. the cost was $.42 for the fist minute and $.19 for each additional minute. what was the total length of the call if it cost $2.89

**DSMA**

What does Frank do on Friday? Is does and do used properly?

**Calculus AB**

Consider the region trapped between the graphs of y=9-x^2 and y=11-3x. a) find the area of this region b) set up an integral which computes the volume of the solid of rotation obtained by rotating this region about the x-axis c) set up an integral which computes the volume of ...

**Calculus AB**

Consider the region bounded by the graphs of the equations x=y^2 and y=3x. Set up 2 integrals, one with respect to x and the other with respect to y, both of which compute the volume of the solid obtained by rotating this region about the x-axis and evaluate the integrals.

**Calculus AB**

Consider the region trapped between the graphs of y=9-x^2 and y=11-3x. a) find the area of this region b) set up an integral which computes the volume of the solid of rotation obtained by rotating this region about the x-axis c) set up an integral which computes the volume of ...

**western experience**

I'm currently taking AP European History, and 2 is environmentalists, like Ms. Sue said.

**math**

17-6x10 ,2+12

**math**

Express the following in simplest form: (complex fraction) Sin(x) - Cos(x) Cos(x) Sin(x) _______________ 1 - 1 Cos(x) Sin(x)

**Spelling**

I need help with finding contractions. I need to find 3 will/shall contractions (I need 9 but I already have I'll, She'll, He'll, They'll You'll, We'll). Then I need 6 is/has contactions (I also need 9 and I have She's, He's, It's). Then I ...

**Science**

If the mass is 5 kg, what is the weight???

**Algebra**

17-6x10 ,2+12

**Algebra!!!**

Using the point-slope equation, find the equation containing (2, 5) and slope m = -3

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