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Physical Science

06/17/23

Physical Science 1415

I need to use Newton's second law to calculate the acceleration of a box and record the value. I must use a=Fnet/m; my numbers are 150N Fapp(N); 94N FFr(N); Sum of Forces 56N, and I think my... more

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Physical Science

05/23/23

Why are most carbon emissions from developing countries?

Why are the most carbon emissions and bad gases, that are released, from developing/3rd world countries??

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Physical Science Physiology

05/08/23

Can exercise timing shift circadian rhythms?

Particularly for shift workers, can exercise timing delay circadian rhythms so that going into a night shift, they can feel more alert? What mechanisms are involved in this? Is it to do with... more

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Physical Science

04/26/23

physics grade 9

a pool ball leaves a 0.70-meter high table with an initial horizontal velocity of 2.6m/s. predict the (a) time required for the distance between the table's edge and the ball's landing location

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Physical Science

04/01/23

Is it true that an object falls no faster after 36 feet from the ground?

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Physical Science Math Physics Chemical Engineering

03/26/23

Help-Calculate the conductivity of insulating material.

Example 3.38. An electric cable of 12 mm diameter is insulated to increase the current capacity. Due to insulation the current carrying capacity is increased by 15% without increasing cable surface... more

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Physical Science Science Physics Act Science

03/19/23

Ideal gas law question

The pistons of two identical cylinders are rigidly connected to each other. The cylinders contain the same amount of the same heated gas. Suppose that one cylinder is heated and the other is... more

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Physical Science

03/14/23

a car moves at a constant speed of 10 m/s . if the car doesn’t accelerate during the next 40s how far will it go

how far will it go

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Physical Science

02/22/23

A man pushes a lawn mower on a level lawn with a force of 210 N. If 48% of this force is directed downward, how much work is done by the man in pushing the mower 4.5 m?

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Physical Science Chemistry Physics

02/13/23

Questions on Thermodynamics

Given that ΔHo(fusion,0°C) of water is 6025 J/mol, Cp,m(ice) = 37.7 J K–1 mol–1, and Cp,m(water,liquid) = 75.3 J K–1 mol–1, calculate ΔG (in J) for the freezing of 53 moles of water at 1 atm... more

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Physical Science

02/05/23

How long will it take an object dropped from a window to fall a distance of 78.4 meters?

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Physical Science

02/04/23

a really big beast of a block stone of weight 600kg gains 36000j how high has it been raised

conversions

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Physical Science

01/29/23

Calculate the maximum height achieved by a ball thrown straight into the air with initial speed 20.0 ft/sec. Give the answer to 1 decimal place.

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Physical Science Math Science Chemistry

01/21/23

Im not sure how to answer any of these questions, can someone explain each stage?

Acetic acid and acetone are used for the purification of PLA production. A liquid mixture of acetic acid and acetone is in vapour liquid equilibria (VLE) at 100 °C. The mole fraction of acetic... more

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Physical Science

01/15/23

What is the shadow zone in earthquakes.

P and S waves are seismic waves that travel through the earth, as opposed to the surface waves which travel above the earth. P waves, also known as Primary waves travel in compression. S waves,... more

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Physical Science

01/12/23

A diver with a weight of 200N is standing on a platform that is 5m off the ground. What is the diver's gravitational potential energy?

pls help me solve this

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Physical Science

12/19/22

Diameter of Planets

If earth has a diameter of 1cm, each of the following planets (Mercury,Venus,Mars,Jupiter,Saturn,Uranus,Neptune)will have a diameter of...

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Physical Science

12/16/22

Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.60 seconds, what will be his final velocity and how far will he fall?

Acceleration due to gravity on Earth is 9.81 m/s2. This means that any object on Earth in "free fall" will have an acceleration of 9.81 m/s2. Also, objects in free fall have an initial velocity of... more

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Physical Science

12/02/22

reaction rate definition

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Physical Science

12/02/22

If red hot metal is put on paper in a vacuum, what happens to the paper?

I am asking out of pure curiosity. Without fire, how would the paper burn? Would it just blacken, or stay the same and just be really hot paper. Or would it still somehow turn to ash? It's too... more

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Physical Science

11/08/22

How is LIFT produced? I can't grasp how the plane gets off the ground.

As the plane rolls down the runway (thanks to the thrust caused by the propeller), air is obviously hitting the plane. The faster we roll down the runway, the faster the air (called relative wind )... more

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Physical Science Science Biology Biochemistry

11/01/22

Reliability of Information on the Web.

Instructions: The internet offers endless opportunities to obtain high-quality information on a wide variety of topics that are relevant to nutrition, but it also delivers an abundance of... more

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Physical Science

11/01/22

Consider a massive 500 kg boulder and a 1.0 kg rock. If both are dropped from the same height at the same time, which will hit the ground first? (Assume there is no air resistance)

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Physical Science

11/01/22

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?

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Answers •1

Physical Science

11/01/22

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?

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Answers •1

Physical Science 1415

Why are most carbon emissions from developing countries?

Can exercise timing shift circadian rhythms?

physics grade 9

Is it true that an object falls no faster after 36 feet from the ground?

Help-Calculate the conductivity of insulating material.

Ideal gas law question

a car moves at a constant speed of 10 m/s . if the car doesn’t accelerate during the next 40s how far will it go

A man pushes a lawn mower on a level lawn with a force of 210 N. If 48% of this force is directed downward, how much work is done by the man in pushing the mower 4.5 m?

Questions on Thermodynamics

How long will it take an object dropped from a window to fall a distance of 78.4 meters?

a really big beast of a block stone of weight 600kg gains 36000j how high has it been raised

Calculate the maximum height achieved by a ball thrown straight into the air with initial speed 20.0 ft/sec. Give the answer to 1 decimal place.

Im not sure how to answer any of these questions, can someone explain each stage?

What is the shadow zone in earthquakes.

A diver with a weight of 200N is standing on a platform that is 5m off the ground. What is the diver's gravitational potential energy?

Diameter of Planets

Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.60 seconds, what will be his final velocity and how far will he fall?

reaction rate definition

If red hot metal is put on paper in a vacuum, what happens to the paper?

How is LIFT produced? I can't grasp how the plane gets off the ground.

Reliability of Information on the Web.

Consider a massive 500 kg boulder and a 1.0 kg rock. If both are dropped from the same height at the same time, which will hit the ground first? (Assume there is no air resistance)

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?

Two forces act on the same object. Force 1 is 6 N to the right. Force 2 is 7 N to the right. What is the net force?

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