4,365 Answered Questions for the topic Science
Science Physics
07/04/20
Can you please provide a complete solution for letters a and b. Please also provide a free body diagram (FBD) for this
A 10-kg cart is released from rest with no slack in the cable and with the spring unstrethced. The spring constant is 125 N/m. a. When m=0, the cart travelled 0.663 m before coming to rest....
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Science
07/02/20
Matter is anything that has mass and occupies space - True or false
- True or false
Only living things are matter
Amass balance can be used to measure the mass of matter
Mass can be measured in litres
A measuring cylinder can be used to measure the volume of a...
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Science Physics
06/27/20
Explain how wearing a hat can reduce the rate of energy transfer from your head.
Explain how wearing a hat can reduce the rate of energy transfer from your head.
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Science (teaching Science)
06/25/20
What do materials scientists do?
Science
06/24/20
I have a pack of 6oz small bottle rockets i bought for the 4th of july. 2 of the pointy caps came off. Can they still be used.
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Science
06/20/20
What is the difference between melting and freezing point
06/18/20
Pressure of oxygen
If the partial pressure of oxygen is the same at the top of Mount Everest (elevation above sea level 8848m) as Toronto (elevation above sea level 76m), why is it so much harder (and dangerous) to...
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06/18/20
Asthma question
How does asthma negatively affect a person's ability to get oxygen? Discuss the change in airway and the affect on gas accessibility. How do increased levels of CO2 affect the ability of hemoglobin...
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06/17/20
What is an easy and not too expensive science project during the summer for students?
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06/16/20
vector math problem
Write the vector equation of a line through the point of intersection of 𝑙1 and 𝑙2 and perpendicular to both 𝑙1 and 𝑙2. 𝑙1:[𝑥,𝑦,𝑧] = [2,1,1] + 𝑠[4,0,−1] 𝑙2:[𝑥,𝑦,𝑧] = [3,−1,1] + 𝑡[9,−2,−2]
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What is the difference between ideology and inquiry?
I need examples of the difference between the two.
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What is the connection between the scientific method and critical thinking?
I need examples of the connection between the two.
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Macronutrients meal
Ryan ate a stir-fried meal that consisted of mushrooms, snow peas, and some salt and oil. What macronutrients are primarily found in this meal?
starch
cellulose
chitin
lipids
proteins
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Science Chem
06/12/20
What steps are needed to make 250.0 mL of a .20 mol/L solution from solid NaOH? And the molar mass of NaOH is 40g/Mol.
i need "a complete response that includes the required mass of the sample and a set of detailed instructions"
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What is the best treatment for a traumatic injury to a fish's gills?
I have been looking around but all of the possible answers I've found are either very technical in their language or they're more specific about diseases or illnesses that can damage a fish's...
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Work out the concentration of the sulfuric acid in grams per dm3 if it took 25cm3 of it to completely neutralise the sodium hydroxide. The relative molecular mass of sulfuric acid is 98
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What type of substance is phenolphthalein
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Magnesium burns in air to give magnesium oxide as shown below. If 8g of magnesium oxide product is produced, calculate how much magnesium metal must have been used.
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The equation below shows the formation of ammonia. If 56g of nitrogen gas is used in the reaction, how much ammonia will be formed?
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Science Calculus
06/09/20
What tells you that the relation is best fit by a linear model? Use principles about what kinds of functions have consistency in which types of rates of change?
Suppose a set of data about the spread (in hundreds of acres) of a food-borne bacteria (after t weeks) in lettuce has the following percentage rates of change: 0.9%, 1.3%, 1.1%, 1.0%, 1.3%, 1.0%;...
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Science Physics
06/08/20
Neglecting the effects of air resistance, how far will an object fall from rest in 9 seconds? Please show your work in order to earn credit for this question.
Neglecting the effects of air resistance, how far will an object fall from rest in 9 seconds? Please show your work in order to earn credit for this question.Free Fall Kinematic Equations which may...
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Science Physics
06/08/20
What is the acceleration of the block?
A 9 kg block experiences two external forces acting on it simultaneously. Force A has a magnitude of 20 N and points in the positive direction. Force B has a magnitude of 4 N and points in the...
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Science Chemistry
06/08/20
Chemistry question
When a gas enters an opened container and reacts with the substances in the container, is it part of the initial measurement of the reactants on the scale? Does the total mass change during a...
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