1,302 Answered Questions for the topic physical science

Physical Science

02/15/19

A bicycle tire is 64 cm in diameter. At what frequency does the tire rotate when the bicycle is traveling at a speed of 40 km/s?
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Physical Science

02/13/19

which atoms have the lowest electronegativity

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Physical Science

02/11/19

A car starts from rest and reaches a speed of 40m/s in 10s. If its acceleration remains same then how fast will it be moving 5s later?
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Physical Science Science

02/07/19

What is the difference between rotation axis and equator
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Physical Science

02/04/19

A train moves from rest to a speed of 25 m/s in 30 seconds what is its acceleration

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Physical Science Solutions

01/31/19

why is it desirable to know the exact concentration of solutions rather than whether they are concentrated or dilute?
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Physical Science Science

01/29/19

what is kinetic energy
energy in which is in motion
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Physical Science

01/27/19

measurement hw help for physical science class
Earth's mass is 5.975 x 10^24k; its volume is 1.08 x 10^21m^3. What is its density in SI units?
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Physical Science

01/27/19

If copper has a density of 8.96 g/cm3, what is the volume of 5,800 g of copper?
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Physical Science Science

01/25/19

Measuring matter
if you have an obiect with a mass of 250 grams and a colume calculated by volume displacement of 522 milliliters what is the desiry of that object?
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Physical Science

01/24/19

How many liters of sodium chloride are created if 6.5 moles of solute is dissolved to make a 0.08 M solution?
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Physical Science

01/24/19

How many hours are required for a radio signal from a space probe near the planet Pluto, 5.97 × 109 km away, to reach Earth? Assume that the radio signal travels at the speed of light, 3.00 × 108 m/s.
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Physical Science

01/16/19

A hot dog bun (volume 260 cm3) with a density of 0.16 g/cm3 is crushed in a picnic cooler into a volume of 145 cm3. What is the new density of the bun?
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Physical Science

01/16/19

What is the volume when 8.30 kg of iron cans are melted, then cooled into a solid cube? [the density of iron cans is 7.87 g/cm3]
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Physical Science Geology

01/10/19

What physical characteristics of the bedrock are responsible for the oldest rock remaining at the highest elevation?
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Physical Science

12/21/18

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
carbon + oxygen + carbon dioxidecarbon + oxygen → carbon dioxidecarbon dioxide → carbon + oxygen carbon dioxide + carbon → oxygen
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Physical Science

12/21/18

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
CombustionDecompositionSingle ReplacementSynthesis
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Physical Science

12/20/18

speed and velocity
a car is driving west on a highway at 25 m/s. what is the car's km/h and velocity?
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Physical Science

12/17/18

do sound waves carry energy
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Physical Science

12/14/18

A force 300 N is applied to a box for 10 seconds in order to move the box 10 m. What is the power
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Physical Science

12/14/18

A person holding 30kg box 1m above the floor it down. How much work was done

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Physical Science

12/13/18

I need a step by step on how to do this problem...Anyone want to help?
What is the velocity of an 8 kg lead shot-put if it has 484 J of energy?
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Physical Science

12/13/18

Calculate her average speed in km/h.
A girl takes 30 minutes to travel around a cross-country ski course: a distance of 10 km. Calculate her average speed in km/h.
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Physical Science Solubility

12/08/18

How many grams of KNO3 can be dissolved in 200.0 mL of water at 35 Celsius
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Physical Science

12/07/18

science sounds i dont know what to do
Donna wants to calculate the speed at which a sound wave is traveling. She knows that the frequency of the wave is 680 hertz and that the wave has a wavelength of 0.5 meters.What is the speed of... more
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