1,302 Answered Questions for the topic physical science

Physical Science

03/01/22

What is the percent yeild of soduim sulfate when 32.18 g of sulfric acid reacts with excess sodium hydroxide to produce 37.91 g of sodiumsulfate
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02/18/22

Does these violate Newton's third law?
A 50 KG brick is put on a glass table glass. Action force and reaction force are not the same and the glass breaks because a glass's opposing force will never equal the heavier brick. So in... more
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Physical Science

02/11/22

A sailboat increases its speed from 1 m/s to 4 m/s in 3 seconds. What will the speed of the sailboat be at 6 seconds if the acceleration stays the same?
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Physical Science

02/07/22

Organization of the Periodic Table
Most elements' names end in the suffix -ium. This practice started around the year 1800, with many elements discovered before that having a more common name. However, some elements are more... more
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Physical Science Chemistry

02/05/22

In a burner flame, the hottest part is just above the "inner cone". But for domestic heating purposes,
heat is extracted from the cooler exhaust gas completely above the flame, not from a location within the flame. Why is the hottest part of the flame not used as the site of heat extraction?
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Physical Science

02/03/22

Chapter Three Homework
Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 128 kg, and when the astronaut gets on a scale, the reading is 472 N. What is the acceleration (in m/s2) due to... more
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Physical Science

02/03/22

Chapter Three Homework
(a)What is the force (in N) of gravity between two 1320 kg cars separated by a distance of 40.0 m on an interstate highway?  N
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Physical Science

02/03/22

Chapter Three Homework
A 79-kg person is standing on a scale in an elevator. What is the reading of the scale in newtons if the elevator is at the following speeds?(a) at rest N (b) moving up with a... more
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Physical Science

02/03/22

Chapter Three Homework
Determine the net force (in N) necessary to give an object with a mass of 3.80 kg an acceleration of 5.70 m/s2.   N
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Physical Science

02/03/22

Chapter Three Homework
What is the net force (in N) of a 5.00 N force and an 6.00 N force acting on an object for each of the following conditions? (Enter the magnitudes.)(a)The forces act in opposite... more
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Physical Science

02/03/22

chapter four questions
A microwave oven has a power requirement of 1,254 W. A frozen dinner requires 5.1 min to heat on full power.(a) How much electrical energy (in kWh) is used? kWh(b) If the cost of electricity... more
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Physical Science

02/03/22

chapter four questions

A ball is dropped from a height at which it has 46.0 J of potential energy. How much kinetic energy (in J) does the ball have just before hitting the ground? (Assume the ground is at h = 0.) JHow... more
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Physical Science

02/03/22

chapter four question

A sled and rider with a combined weight of 74.0 kg are at rest on the top of a hill 30.0 m high. (Enter your answers in J.)(a)What is their total energy at the top of the hill? J(b)Assuming there... more
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Physical Science

01/26/22

a car travels 400.0 miles in a total of 8.0 hrs. what is the average speed of this car during the trip showing work
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Physical Science Science Chemistry Physics

01/06/22

What are Alpha particles, Beta particles, and Gamma particles?
And can someone help me differentiate them? Thanks in advance.
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Physical Science Science Biology Chemistry

12/27/21

What is the difference between imitation and emulation ?
What is the difference between imitation and emulation ?
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Physical Science

12/14/21

The electrostatic force between two charges located 2 meters apart is 40 N. What will the force be between these charges when they are located one-third meters apart?
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12/10/21

How many milliliters each of purified water and an isotonic sodium chloride solution should be used to prepare 30 mL of a 1% w/v isotonic solution o fentanyl citrate (E = 0.11)?
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Physical Science Science Chemistry Biochemistry

12/09/21

Isotonic sodium chloride solution contains 0.9% w/v sodium chloride. If the E-value of boric acid is 0.52, what is the percentage strength (w/v) of an isotonic solution of boric acid?
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Physical Science Physics Physics C Thermodynamics

11/24/21

Specific heat capacity of water

I’m doing an experiment in physics about the heat capacity of water and I have questions that I don’t understand- A little info->Task/Mission- Determine the specific heat capacity of the water. ... more
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Physical Science Science Biology Chemistry

11/23/21

How to differentiate reducing and enlarging formula from dilution and concentration?
By comparing and contrasting when it comes on solving problems.
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Physical Science Chemistry Chemical Engineering

11/22/21

Hypothetical Phase Diagram
1.A hypothetical three component system has a composition of 24% A, 40% B and 36% C. Plot this composition in a Roozeboom diagram.2. Draw (illustrate) a hypothetical phase diagram incorporating the... more
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Physical Science Science Chemistry Physics

11/09/21

Heat Transfer/Specific Heat Problems. Step-by-step
How many joules of heat are required to raise the temperature of 550 g of water from 12.0 oC to 18.0 oC?
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Physical Science Science Chemistry Physics

11/06/21

Specific Heat Capacity Show work Please!

When 5800 joules of energy are applied to a 15.2-kg piece of lead metal, how much does the temperature change by?[2.98 degrees] <===Answer
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Physical Science Science Chemistry Physics

11/06/21

Specific Heat Capacity Show work Please!
How much energy (in kJ) is lost by a 348-kg iron statue that goes from a temperature of 299 Kto a temperature of 280 K?[-2975 kJ] <===Answer
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