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Mohanad
Questions and answers by visitors named
Mohanad
Questions (29)
Assuming bicycle tires are perfectly flexible and support the weight of
bicycle and rider by pressure alone, calculate the total
5 answers
2,024 views
One half the distance from Boston to New York minus 25
1 answer
406 views
Two children pull a third child on a snow saucer sled exerting forces
F1 and F2 as shown from above in Figure 4.36. Find the
4 answers
6,204 views
How much 6.0M NaoH must be added to 0.5L of a buffer that is 0.0200M acetic acid and 0.0250M sodium acetate to raise the PH to
1 answer
461 views
How much 6.0M NaoH must be added to 0.5L of a buffer that is 0.0200M acetic acid and 0.0250M sodium acetate to raise the PH to
1 answer
378 views
astronomical observations of our milky way galaxy indicate that it has a mass about 8.0 *10^13 times the mass of our sun. a star
1 answer
767 views
calculate the work done on a 1550kg elevator car by its cable to lift it 40 m at constant speed assuming friction average 125 n
2 answers
574 views
A shopper pushes a grocery cart 20.0 m at constant speed on level
ground, against a 35.0 N frictional force. He pushes in a
5 answers
3,571 views
A 125.0 mg sample of an unknown, monoprotic acid was dissolved in 100.0 mL of distilled water and
titrated with a 0.050 M
3 answers
2,167 views
A 2400 kg car moving at 11 m/s crashes into a tree and stops in 0.26 s. calculate the force the seat belt exerts on passenger in
2 answers
873 views
train car are coupled together by being bumped into one another. suppose two loaded train cars are moving toward one another,
4 answers
994 views
during a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him the ball mass is 10.0 kg and
2 answers
582 views
During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of
4 answers
3,272 views
What force should the woman in Figure 9.45 exert on the floor
with each hand to do a push-up? Assume that she moves up at a
3 answers
2,561 views
Competitive divers pull their limbs in and curl up their bodies when they do flips. Just before entering the water, they fully
4 answers
1,901 views
A 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper
of a pool table and bounces straight back at 2.40 m/s (80%
3 answers
1,751 views
List the following in order of increasing force of attraction
1. an electron in the outer shell of carbon atom (in the ground
4 answers
554 views
A certain hydraulic system is designed to exert a force 100 times as large as the one put into it. (a) What must be the ratio of
1 answer
767 views
pressure cookers have been around for more than 30 years, although their use has stongly declined in recent years.how much force
1 answer
490 views
A submarine is stranded on the bottom of the ocean with its hatch
25.0 m below the surface. Calculate the force needed to open
1 answer
866 views
Water towers store water above the level of consumers for times of
heavy use, eliminating the need for high-speed pumps. How high
3 answers
1,778 views
Putting a lid on a boiling pot greatly reduces the heat transfer necessary to keep it boiling. Explain why
2 answers
556 views
When heat transfers into a system, is the energy stored as heat? Explain briefly.
4 answers
2,781 views
a cylinder with movable piston contains 40 moles of an ideal gas it is placed in an ice water bath where it reach thermal
1 answer
437 views
How many grams of coffee must evaporate from 350 g of coffee in a
100-g glass cup to cool the coffee from 95.0ºC to 45.0ºC ?
4 answers
1,693 views
A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0ºC is
placed in a freezer. What is the final temperature if 377 kJ of
1 answer
902 views
If you pour 0.0100 kg of 20.0ºC water onto a 1.20-kg block of ice
(which is initially at −15.0ºC ), what is the final
2 answers
1,164 views
Indigenous people sometimes cook in watertight baskets by placing
hot rocks into water to bring it to a boil. What mass of 500ºC
4 answers
1,172 views
how many gram of ice at 0 c can be melted by the heat released when one gram of steam condense to water at 100 c
check my answer
4 answers
742 views
Answers (3)
how many gram of ice at 0 c can be melted by the heat released when one gram of steam condense to water at 100 c
no thing given rather then this information and this is exam question how i can look for ionization energy?
One half the distance from Boston to New York minus 25
