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Free Physical Science Homework Helper

Arturo O.

Melbourne, FL

what is the gravitational potential energy of a book with a mass of .5 kg sitting on a shelf 1.5 meters above the floor?

 I need help

Mar 5 | Lil from Grove City, OH | 1 Answer | 0 Votes

Physical Science

Andrew M.

Palm Bay, FL

An iron ball is dropped from rest, it falls 250 m before hitting the ground. what is the velocity just before it hits the ground?

i need help doing my physical science work. this is an online course, therefore it can be difficult to receive help with the work. 

Feb 18 | Keuana from Rock Hill, SC | 2 Answers | 0 Votes

Physical ScienceNo answers ... yet!

A rifle of mass 2 kg is horizontally suspended by a pair of strings so that recoil can be measured. A bullet of mass 10g is fired at a speed of 200 m/s. What

how do you find the speed?

Feb 21 | Ana from Sioux Falls, SD | 0 Answers | -1 Votes

Physical ScienceNo answers ... yet!

A cannonball fired from a long-barrel cannon will have a greater muzzle velocity because the cannonball receives a greater

does it have a greater force or impulse or both

Feb 21 | Ana from Sioux Falls, SD | 0 Answers | 0 Votes

Physical ScienceNo answers ... yet!

Two billiard balls having the same mass (0.1kg) roll toward each other at the same speed of 5 m/s. What is the net momentum of the two ball system?

what is the net momentum of the two balls

Feb 21 | Ana from Sioux Falls, SD | 0 Answers | 0 Votes

Physical Science

J.R. S.

Carmel, IN

How do elements change as you move down a column in the periodic table

A. The atomic radius increases B. The number d protons decreases C. The atomic mass decreases D. The electro negativity decreases

Feb 2 | Mara from Miami, FL | 1 Answer | 0 Votes

BiologyPhysical Science

LaRita W.

Atlanta, GA

what are the three subatomic particals that all atoms are made of

 

Jan 30 | Jaykierra from Ridgeland, SC | 1 Answer | 0 Votes

Physical Science

Arturo O.

Melbourne, FL

the moon travels in a nearly circular path around earth. if somehow gravitation between earth and moon disappeared, how would the moon's path differ?

what will happen to the moon and earth id there was no gravitation  

Feb 10 | Michelle from Alamo, TX | 1 Answer | 0 Votes

Physical Science

Kurt T.

Dublin, OH

Does a cork float or sink if the density of the cork is 0.24 g/cm3 and the waters density is 1.0 cm/3?

I dont know if the cork sinks or floats in water?  

Feb 8 | Nicole from Lincoln, NE | 1 Answer | 0 Votes

Physical Science

Arturo O.

Melbourne, FL

Benjamin travels at 5 m/s and then accelerates at 2 m/s^2 for 3s. What is his final velocity?

what is the velocity?  

Feb 14 | Ana from Sioux Falls, SD | 1 Answer | -1 Votes

Physical ScienceNo answers ... yet!

Which of the following statements is/are true?

All fossil fuels release greenhouse gases when burned. B. Hydrogen gas does not release any greenhouse gases when burned. C. The manufacture of solar cells releases greenhouse gases...

Feb 9 | Samm from Trenton, MO | 0 Answers | 0 Votes

Physical Science

Arturo O.

Melbourne, FL

Tanya pulls on a 2 kg rope with a force of 100 N. Keith pulls in the opposite direction with a force of 80 N. What is the acceleration of the rope? Does it

how do you find the acceleration of the rope?

Feb 14 | Ana from Sioux Falls, SD | 1 Answer | -1 Votes

Physical Science

Kenneth S.

Mesa, AZ

Benjamin travels at 5 m/s and then accelerates at 2 m/s^2 for 3s. What is his final velocity?

how do you calculate the velocity for this question?

Feb 14 | Ana from Sioux Falls, SD | 1 Answer | -1 Votes

Physical Science

Philip P.

Olney, MD

Cliff applies a 12 N force on a 300g object. What is its acceleration?

how do you calculate acceleration? 

Feb 14 | Ana from Sioux Falls, SD | 1 Answer | -1 Votes

Physical Science

Frank C.

Cypress, TX

Katie drives at 30 m/s for 2 hours. How far does she travel in km?

 how do you solve this? Katie drives at 30 m/s for 2 hours. How far does she travel in km?o you solve this? 

Feb 14 | Ana from Sioux Falls, SD | 1 Answer | -1 Votes

Physical ScienceNo answers ... yet!

A 53.6 kg person will need to climb a 2.9 m stairway how many times to "work off" each excess Cal (kcal) consumed

A 53.6 kg person will need to climb a 2.9 m stairway how many times to "work off" each excess Cal (kcal) consumed

Feb 17 | J from Fayetteville, NC | 0 Answers | -1 Votes

Physical ScienceNo answers ... yet!

How would I solve these physical science questions

The questions are:   What volume of iron has the same mass as 100 cm3 of lead? [lead= 11.4 g/cm3, iron= 7.87 g/cm3]   You buy 6 million dollars' worth of gold at $40 per...

Jan 23 | Pilo from Hayward, CA | 0 Answers | 1 Vote

Physical SciencePhysical Science Word ProblemScienceNo answers ... yet!

Lemon juice and tomato juice have

Lemon juice and tomato juice have

Jan 14 | Lorie from Douglasville, GA | 0 Answers | 0 Votes

Physical Science

Kenneth S.

Mesa, AZ

What was the average speed in km/h of a car that travels 58.4 km in 23.8 min?

What was the average speed in km/h of a car that travels 58.4 km in 23.8 min?

Jan 26 | J from Fayetteville, NC | 1 Answer | 0 Votes

Physical Science

Arturo O.

Melbourne, FL

Physical science

what happens when you drink Alka-Seltzer (base) for your upset stomach?

Jan 14 | Lorie from Douglasville, GA | 1 Answer | 0 Votes

Physical Science

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