Thursday

July 24, 2014

July 24, 2014

Total # Posts: 32

**Physics**

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

**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 ...

**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 a...

**Physics**

sorry I meant 9m high bridge

**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 a...

**physics**

Vf^2=vi2+2ad Vf^2=2(-9.8)(100) Vf^2=1960 Vf=44.3m/s down

**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

**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?

**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?

**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?

**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?

**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?

**Hi**

Name: Park Sumin Partner: Bangtan Boys Rap Monster Scenario: Author's choice

**Math**

Thank you

**Math**

Two terms of an arithmetic sequence are t6=-3 and t11=-13. What is t20?

**Oops**

Ooops

**Physics**

I don't understand why it's 7/10Hz though...

**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?

**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

**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)

**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...

**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 tempe...

**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.

**Physics**

Thanks ^^

**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) Fi...

**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?

**physics**

The answer is supposed to be 34m..

**physics**

The answer is supposed to be 34m..

**English**

ohh i see it now.. Thank you for ur help writeacher :)

**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

**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 n...

**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

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