1,302 Answered Questions for the topic physical science

Physical Science Science Chemistry Physics

11/06/21

Specific Heat Capacity Show work Please!
A heat energy of 645 J is applied to a sample of glass with a mass of 28.4 g. Its temperatureincreases from –11.6 ∞C to 15.5 ∞C. Calculate the specific heat of glass.[0.84 J/g C] <=== Answer
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Physical Science Science Chemistry Physics

11/06/21

Specific Heat Capacity Show work Please!

A silver ring has a mass of 138.45 g. How many joules of heat are required to increase the temperature from 11.8 ∞C to 162.5 ∞C?[5007 J]<==== Answer
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Physical Science Science Chemistry Physics

11/05/21

Specific Heat Capacity Show work Please!
When 895-J of heat is applied to a sample of iron metal the temperature increases by 55.0 ∞C.Determine the mass of the metal sample to the nearest tenth of a gram. [36.2g] <==== Answer
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Physical Science Science Chemistry Physics

11/05/21

Specific Heat Capacity Show work Please!
A water heater warms 35-L (35 kg) of water from a temperature of 22.7 ∞C to a temperature of83.7∞C. Determine the amount of energy (in kilojoules) required.[8933 kJ] <=== Answer
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Physical Science Science Chemistry Physics

11/03/21

Thermochemistry. Answer, step by step please. (show work)
Combustion of C8H18(g) ∆H = -5076 kJ a. Write a balanced chemical equation that includes heat as a reactant or product. b. What volume of products can be made if 120 kilojoules are released?
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Physical Science

10/28/21

Which has more kinetic energy: a 0.0016-kg bullet traveling at 398 m/s or a 5.9 107-kg ocean liner traveling at 14 m/s (27 knots)?

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Physical Science

10/28/21

Which has more kinetic energy: a 0.0016-kg bullet traveling at 398 m/s or a 5.9 107-kg ocean liner traveling at 14 m/s (27 knots)?

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Physical Science Science Chemistry Biochemistry

10/04/21

Classify as mixture or pure substance
Classify as mixture or pure substanceA. Gasoline B. Oxygen gas C. Milk D. Mercury (Hg) used in a thermometer E. A tablespoon of sugar (C12H22O11)
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Physical Science Science Chemistry Biochemistry

10/04/21

Identify the change as Physical or Chemical
Identify the change as Physical or ChemicalA. Mothballs vaporize in a closet B. A flashlight corrodes on storage.C. A piece of rubber stretches when pulled.D. Alcohol feels cool when it evaporates... more
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Physical Science Math Physics Mathematics

09/29/21

A stone is dropped from a tall building t=0 and strikes the ground. Illustrate a graph that best shows the velocity of the stone after it is dropped.
Please create a graph that would best describe the velocity of the following problem or situation.
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Physical Science Physics Kinematics

09/29/21

Please answer the following problem in the DESCRIPTION and PROVIDE A FULL EXPLANATION
The acceleration of a NASCAR race car is zero. Does this necessarily mean that the velocity of the car is zero? If the speed of the car is constant as it goes around the track, is its average... more
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Physical Science Physics Mathematics

09/28/21

The graph in the figure shows the velocity of a particle as it travels along the x-axis. What is the magnitude of the average acceleration of the particle between t= 1.0 s and t= 4.0 s?
The graph is here:https://imgur.com/a/CfnD478
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09/19/21

Physics question about resistors
You are given six resistors each of value 10 ohms, how will you connect them to give a total of 10 ohms? I need this to draw a circuit diagram of this arrangement but am unable to figure it out.
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Physical Science

09/13/21

An object falls from the Transco Tower in Houston and takes 15 seconds to reach the ground. What is its acceleration at the 10th second?
5 m/s2 15 m/s2  9.8 m/s2 30 m/s2 
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Physical Science

09/13/21

Please help me I need help with this homework

1) In order to receive credit for this worksheet you MUST show your work. 2) You MUST write the applicable formula for each problem to receive credit.3) You can use a calculator but you must show... more
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Physical Science

09/08/21

Physical science
what three assumptions about particles in a gas are made by kinetic theory.
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Physical Science

09/08/21

Write the resulting element from the fused elements during fusion, and provide the atomic mass of the elements involved and the resulting element.
Li + NeNa + Be
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Physical Science

08/30/21

Sports Officiating
Expound the statement “sports officiating is a profession”.
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Physical Science

08/30/21

whats the process that a spark represents
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Physical Science

08/27/21

Acceleration worksheet
A roller coaster car rapidly picks up speed as it rolls down a slope As it starts down the slope its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is... more
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Physical Science Physics Prealgebra Algebra

08/02/21

Projectile Motion
question 1: An object is thrown upward with an initial velocity of 15 feet per second. Its height is given by h= -15t^2 + 60t. After how many seconds does it hit the ground?question 2: A... more
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Physical Science

08/01/21

what would the final pressure of 40L of gas at 90 pa be if the volume was increased to 120L
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Physical Science Science Earth Science

08/01/21

Need help with science ASAP
List the three general types of rocks and give one example of each. Pick one of the three rock examples and explain what would happen to that rock as it undergoes changes as described by the rock... more
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Physical Science Physics Ap Physics Physics B

07/30/21

Photoelectric effect
When light of sufficient energy hits the cathode, photoelectron are ejected towards the anode. A voltage can be applied so that no current is measured at the ammeter. This is known as stopping... more
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Physical Science

07/18/21

Nuclear Fission help
Describe the process of nuclear fission. Answer how does it work and when is it used. What is meant by the chain reaction. And how do you control it
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