Friday

December 19, 2014

December 19, 2014

Total # Posts: 46

**physics**

Initially, a particle is moving at 4.20m/s at an angle of 34.5∘ above the horizontal. Two seconds later, its velocity is 6.50m/s at an angle of 50.0∘ below the horizontal. What was the particle's average acceleration during these 2.00 seconds?
*September 21, 2014*

**physics**

As two boats approach the marina, the velocity of boat 1 relative to boat 2 is 2.20m/s in a direction 47.0 ∘ east of north. If boat 1 has a velocity that is 0.745m/s due north, what is the velocity (magnitude and direction) of boat 2?
*September 21, 2014*

**physics**

Four identical masses of mass 800kg each are placed at the corners of a square whose side lengths are 15.0cm . What is the magnitude of the net gravitational force on one of the masses, due to the other three?
*April 14, 2014*

**Physics**

You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the back-middle of the cart, 0.525 m from its ...
*April 7, 2014*

**physics **

You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the back-middle of the cart, 0.525 m from its ...
*April 6, 2014*

**Physics**

Consider two masses that hang from an overhead beam. The first mass of 86.4 kg is attached to the beam using an ideal rope. The second mass of 20.8 kg is attached to the first mass with an ideal rope and hangs directly under the first mass. (a) Find the tension in the lower ...
*April 6, 2014*

**Physics**

Suppose the magnitude of the "drag force" acting on the falling object of mass m is Dv2. Find the expression for the magnitude of the terminal velocity of this object. (Use any variable or symbol stated above along with the following as necessary: g. Do not ...
*February 21, 2014*

**physics**

You are told that the linear "drag coefficient" due to air resistance for a particular object is 0.64 N · s/m and the object has a mass of 0.0010 kg. Find the magnitude of the terminal velocity of this object when dropped from rest. (Assume the object's ...
*February 21, 2014*

**Pre algebra **

What is y=5x+5 the anwser and a graph? What is y= -3x+ 6 the anwser and a graph or the coordinates ? What is 3x-6y< -12 with a graph or coordinates
*February 20, 2014*

**Physics**

If a frictionless incline has a difference in height from one end to the other of 19.5 cm and has a length along the incline of 1.36 m, find the time it takes for a block of 1.1 kg, starting from rest, to slide down the ramp from the top to the bottom of this incline.
*February 15, 2014*

**physics**

Sorry but that was wrong
*January 5, 2014*

**physics**

A 7 kg block is pushed by an external force against a spring with spring constant 124 N/m until the spring is compressed by 2.1 m from its uncompressed length (x = 0). The block rests on a horizontal plane that has a coefficient of kinetic friction of 0.7 but is NOT attached ...
*January 5, 2014*

**Physics**

How far x does it move down the incline before coming to rest? Suppose the incline is frictionless. The angle of inclination is 36 ◦ , the spring constant is 89.6 N/m the mass of the block is 9.05 kg and the acceleration of gravity is 9.8 m/s2 . Answer in units of m ...
*January 5, 2014*

**Physics**

A 6 kg block free to move on a horizontal, frictionless surface is attached to a spring. The spring is compressed 0.16 m from equi- librium and released. The speed of the block is 1.44 m/s when it passes the equilibrium po- sition of the spring. The same experiment is now ...
*January 5, 2014*

**math**

I agree with sam
*December 11, 2013*

**math**

No she won't have enough
*December 11, 2013*

**Math**

if you use $63.00 divided by 9 to estimate $62.59 divided by 9 $7.00 greater than or less than the exact answer? Explain
*November 5, 2013*

**Science**

you are right.
*October 8, 2013*

**Physics**

A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. For simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric and the basket. The hot air inside the balloon ...
*June 23, 2013*

**Physics**

A hot-air balloon is accelerating upward under the influence of two forces, its weight and the buoyant force. For simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric and the basket. The hot air inside the balloon ...
*June 23, 2013*

**math**

the distance around a rectangular field is 340 yards. if the length of the field is 1120 yards, what is the width in yards?
*May 29, 2013*

**physics**

A 75.0 kN truck is parked in the middle of a 20.0 m long bridge. How much force must each end of the bridge exert to support the truck?
*April 2, 2013*

**Physics**

P = F/A But there are two tires. So the weight will be supported by the two tires, thus two areas. So P=F/2A, solving this, A = F/2P A = 600/2*6.7*10^5
*February 8, 2013*

**english language arts**

b
*December 30, 2012*

**Physics**

This helped so much
*October 4, 2012*

**Health**

yes C is right
*August 30, 2012*

**health**

D - evidenced by the USDA Dietary Guidelines for Americans 2010: “Mean intake of seafood in the United States is approximately 3 1/2 ounces per week, and increased intake is recommended. Seafood contributes a range of nutrients, notably the omega-3 fatty acids, ...
*August 23, 2012*

**HEALTH**

its b
*August 11, 2012*

**Health**

no its D cant your read
*July 28, 2012*

**english**

but i need to find out....what do we learn about juliet from this?
*February 13, 2012*

**Astronomy**

Thank you!
*November 24, 2011*

**Math**

SIMPLE INTEREST kelsie has an $800 savings bond which she has had for 2 1/2 years. The bond pays simple interest at the rate of 3.8% per year. If kelsie cashes the bond, what amount will she receive?
*October 25, 2011*

**us history**

a map for the thirteenn original colonies
*January 10, 2011*

**Math**

if the angle between the two lines 3x-5y-1=0 and Kx-y=3 is 45, then find the value of k
*December 5, 2010*

**MATH**

first go to google and tipe in calculator
*November 1, 2010*

**MATH**

6X100
*November 1, 2010*

**math**

2x(3y]00000;-;]'[- 0][p ][
*October 22, 2010*

**math**

How many multiple of 3 between 1-22 are even? A-7 B-5 C-3 D-1p[kiiiii0-=kopiklp,;ll[o
*October 22, 2010*

**ENGLISH**

this is NOT the answers that i expected
*September 9, 2010*

**kindergarten math**

5dddf=45552;weee/f.r'/.te'.'q
*January 20, 2010*

**Algebra 1- 8th Grade**

x per y means x/y Therefore, cost per person means cost/person = 2.6x10^9/2.49x10^8
*April 29, 2009*

**math**

Actually, if you do simple math, you would get $25,920. If you want to know how much he will have after cashing it in, just do this. I=PRT I is the simple interest = 25,920 P is the Principal = $800 R is the rate = 9% = 0.09 T is the time = 30 years = 360 months 800x0.09x360=...
*April 10, 2008*

**english essay**

Fix it, to it: It is not because a cashiers mistake, tt is because many of the food and product One word: -On going = Ongoing -Out side = Outside Two words: -Everyday = Every day
*September 25, 2007*

**ear defenders**

How do i do this Drawn simple particle diagrams to show how the ear defenders will work. „h Drawn diagrams to show where sound will be reflected and where it will be absorbed.
*December 5, 2006*

**Reserves-PLEASE HELP!**

E.
*November 5, 2006*

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