Friday
August 29, 2014

Posts by Sandara


Total # Posts: 31

Physics
A 1.25kg book in space has a weight of 8.35N. What is the value of the gravitational field at that location ?
January 23, 2014

Physics
As a baseball is being caught, it's speed goes from 30.0m/s to 0m/s in about 0.0050s. The mass of the baseball is 0.145kg A) what is the baseballs acceleration B) what are the magnitude and direction of the force acting on it? C) what is the magnitude and direction of the ...
January 23, 2014

Physics
Student A is on a 9m high bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would it take for the ...
January 23, 2014

Physics
sorry I meant 9m high bridge
January 23, 2014

Physics
Student A is on a 9m Hugh bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would it take for the ...
January 23, 2014

physics
Vf^2=vi2+2ad Vf^2=2(-9.8)(100) Vf^2=1960 Vf=44.3m/s down
January 23, 2014

Math
4*2=8 servings (This means he has 8 halves, therefore he does have enough to serve his friends) He will have one leftover because 8-7=1
January 23, 2014

Physics
A tennis ball is thrown up with an initial speed of 22.5m/s. It is caught at the same distance above the ground. A) how high does the ball rise B) how long does the ball remain in the air?
January 22, 2014

Physics
An airplane starts from rest and accelerates at a constant rate if 3.00m/s^2 for 30.0s before leaving the ground. A)How far did it move? B) how fast was it going when it took off?
January 22, 2014

Physics
A car traveling at 20m/s when the driver sees a child standing in the road. He takes 0.80s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops?
January 22, 2014

Physics
A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?
January 22, 2014

Physics
A bike first accelerates from 0.0m/s to 5.0m/s in 4.5s, then continues at this constant speed for another 4.5s. What is the total distance traveled by the bike?
January 22, 2014

Hi
Name: Park Sumin Partner: Bangtan Boys Rap Monster Scenario: Author's choice
January 19, 2014

Math
Thank you
January 18, 2014

Math
Two terms of an arithmetic sequence are t6=-3 and t11=-13. What is t20?
January 18, 2014

Oops
Ooops
January 8, 2014

Physics
I don't understand why it's 7/10Hz though...
January 7, 2014

Physics
A log floating on the water bobs up and down a total of 7 times during a 10 second interval. What is the frequency of the water waves?
January 7, 2014

Physics
A speaker moves a solid cone up and down to compress air making sounds waves at a frequency of 135 Hz. How long does it take for the cone to travel from it's lowest and highest points
January 7, 2014

Physics
Humans can hear sound frequencies ranging from about 20-20000 Hz. What is the shortest wavelength humans can hear (assuming sound travels at 343m/s)
January 7, 2014

Physics
Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx. Hint...
January 3, 2014

Physics
The sun outputs 1380 W/m^2 of energy at the earth's surface. A small rectangular las has the following dimensions: 1km wide, 1.4km long, and 300m deep A) Calculate the thermal energy added to the lake if exposed to 12h of direct sunlight. B) calculate the increase in ...
January 2, 2014

Physics
Thermal energy question A 40.0kg sample of concrete has 10% zinc impurity (by mass). If 6.0x10^4J of thermal energy is added to the sample, determine the change in temperature.
January 2, 2014

Physics
Thanks ^^
January 1, 2014

Physics
A horse pulls a child on a sled along a horizontal snow-covered trail using a rope. The horse does 8.0x10^3J of work as it pulls the child and sled 62m at a constant speed. The coefficient of friction between the sled and the snow is 0.25. A) Find the tension in the rope B) ...
January 1, 2014

Physics
A 25.0kg pickle is accelerated from rest through a distance of 6.0m in 4.0s across a level floor. If the friction force between the pickle and the floor is 3.8N, how much work is required to move the object?
January 1, 2014

physics
The answer is supposed to be 34m..
September 22, 2011

English
ohh i see it now.. Thank you for ur help writeacher :)
May 23, 2011

English
hmm the first one now i am stuck with simile, metaphor and personification? And as for the second one i don't understand why it would be a hyperbole
May 23, 2011

English
I have to answer these questions but i am confused...please help :) As flies to the wanton boys are we to the gods; they kill us for sport Metaphor Personification Hyperbole Litotes None of these I do not understand the sentence itself :( I wish I had a million dollars right ...
May 23, 2011

Pre-algebra HELP ME PLEASE
oh thats easy you just equal everything to 88 units... 1. add everything together... so 7x+4 2. equal to 88 3. Solve! 7x+4=88 thenn... you have x to figure out each side
May 23, 2011

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