Question by Science

All "Science" Questions

Seen 6 months ago Jashayla Williams 0 answers

Benjamina started her walk from the front door of her ground floor apartment. She walked 6 meters to the corner of the building and then turned the corner and walked 10 meters to her friend’s apartment. Identify the difference between the distance she walked and her displacement.

Seen 6 months ago Johnathan Burns 0 answers

How can a microscopic paramecium and a large giraffe both be described by cell theory? How are they different? *Answer both parts of the question.

Seen 6 months ago Miguel Korea Carabantes 0 answers

The average monthly temperatures in Lima, Peru are graphed below.Average Monthly Temperatures for Lima, PeruWhich of the following conclusions could be made from this data? A. It tends to be warmer in February than in August. B. It tends to rain more in July than in December. C. It tends to be warmer in July than in December.

Seen 6 months ago eroldson 0 answers

Olivia wrote a few steps to describe how carbon circulates between the atmosphere and the land.
Step 1. Carbon is released into the atmosphere by the burning of fossil fuels.
Step 2. Carbon is absorbed by plants in the process of photosynthesis.
Step 3. Carbon is stored in plants and stored in the soil when they die.If step 2 is removed, which statement best describes the effects of this missing step on the carbon cycle? Less carbon is stored in the ground. Less carbon will build up in ocean waters. More carbon is stored in animals. Less carbon is absorbed into the ocean.Points earned on this question: 4

Seen 7 months ago Isaac Aquino 1 answers

The first Computer introduce was the IBM PC TRUE OR FALSE?

Seen 7 months ago Brianna 0 answers

What is the power (P) of an electric circuit with a current (1) of 0.5 A and a
voltage (V) of 120 V? The formula for power is P= IV.
A. 602
OWB. 60 W
C. 240 2
O D. 240 W
SUBMIT

Seen 10 months ago Kayla Kelly 0 answers

Pour the oil and water from the three bowls down the drain, and clean the bowls thoroughly. Then refill them each with ½ cup of water and 1 tablespoon of vegetable oil. Test your design on one bowl. If it doesn’t work, modify it and test it again on the second bowl. If it still doesn’t work, make one more modification and test it on the third bowl. Describe the results from your tests below.

Seen 11 months ago Izzy 0 answers

The diagram shows a vertical number line.What is the position of point X?–16–121216

Seen 11 months ago hellan spring and sage spring 1 answers

The average emission rates in the United States from burning coal are 13 lb/MWh (pounds per megawatt hour) of SO2 and 6 lb/MWh of NOx. (A pound is a unit of mass, and a megawatt hour is a unit of energy.) Imagine that a scientist developed a new emission control device that can cut each of these emissions to 35% of the current output. If the device were installed, what would the average emission rates change to?

Seen 11 months ago alicia 0 answers

Avoid asking opinion-based questions.

Seen 11 months ago Long Bow23 0 answers

A toy balloon has an internal pressure of \(1.05\) atm and a volume of \(5.0 \mathrm{~L}\). If the temperature where the balloon is released is \(20^{\circ} \mathrm{C}\), what will happen to the volume when the balloon rises to an altitude where the pressure is \(0.65\) atm and the temperature is \(-15^{\circ} \mathrm{C} ?\)

Seen 1 years ago Adams 3 answers

what examples of acids can i find in my home

Seen 1 years ago Smith Jones 1 answers

1. What term refers to an energy transfer that causes a change in tempeture?

Assume that you have just taken a pan of cooies out of the oven and set them on he counter to cool.

2. What term refers to the aveage kinetic energy of the particles of one of the cookies?

3. Imagine you just put your hand next t one of the cookies without touching it. Your hand feels warm. By what mathod(s) has the thermal energy of the cookies transferred to your hand?

4. Imangine you move the cooking sheet and touch the spot where it had been sitting. It feels warm. How did the thermal energy of the cookies transfer to the stove?

5. If you were to draw the cookies, you would draw arrows above the cookies to show the rising current.
a. by what method is the thermal energy causing the air to move?
b. what kind of current is this?
c. what specific name is givin to this kind of current when it is in the air?

6. The words _____ and _____ are commonly used to indicate temperature, but they are not scifentific terms becasue they mean different things to different people.

7. Temperature really is a measure of the ______ of the particles in any material.

Thank you for any help!

Seen 2 years ago Tremblay Morton 3 answers

1. You observe two beakers containing clear liquid and ice cubes. In the first beaker, the ice cubes are floating. In the second, the ice cubes are on the bottom of the beaker. Write a hypothesis to explain the difference in your observations about the two beakers.

2. Explain why scientific methods cannot be used to answer ethical questions

Please help
I think the cubes that are floating have melted or melting. However those that are not are still in the solid form that's why they are at the bottom

Seen 1 years ago Isabella 2 answers

How many hydrogen atoms are in a molecule of C8H10N4O2? wouldnt it just be 10?

Seen 1 years ago Adams 1 answers

What is the behaviour among particles that affects the solubility of a material?

Seen 1 years ago George Reece 1 answers

Predict how many electrons will most likely be gained or lost by each of the following elements.

how do i know if they will lose of gain them?

here are the elements i need to know if they lose or gain them.

Cs
Al
Se
N

Seen 2 years ago Lam Williams 1 answers

a 10000 kg truck moving at 10 m/s collides with a 2000 kg car moving at 30 m/s in the opposite direction. If they stick together after impact how fast, and in what direction, will they be moving?

Seen 2 years ago sla Bethany 0 answers

Which structure is less likely to suffer severe damage uring an earthquake: a high-rise, steel-frame hotel built on sediments, or a wood-frame house built on bedrock? Explain.

Seen 1 years ago Jack Connor 2 answers

Seen 2 years ago Jack Connor 1 answers

What kinds of animal cells might have a lot mitochondria present?

Seen 1 years ago Nathaniel bag 1 answers

A car travels along a straight, level road. The car begins a distance x = 28.5 m from the origin at t = 0.0 s. At t = 5.1 s the car is at x = 100 m; at t = 7.2 s it isat x = 200 m. Find the average velocity of the car during the interval from t = 0.0 s to t = 5.1 s

Seen 2 years ago James Charlie 3 answers

A wire of resistivity ? must be replaced in a circuit by a wire four times as long. If, however, the total resistance is to remain as before, the diameter of the newwire must

1) be two times smaller.
2) be four times smaller.
3) be four times larger.
4) remain unchanged.
5) be two times larger

Seen 1 years ago Li Smith 3 answers

The electric field everywhere on the surface of a thin spherical shell of radius 0.730 m is measured to be equal to 890 N/C and point radially toward the center of thesphere. (a) What is the net charge within the sphere's surface? _________nC

Seen 1 years ago Thomas Joe 0 answers

An archer shoots an arrow with a velocity of 30 m/s at an angle of 20 degrees with respect to the horizontal. An assistant standing on the level ground 30 m downrangefrom the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow. What is the initial speed of the apple and atwhat time after the arrow is launched should the apple be thrown so that the arrow hits the apple?

Seen 1 years ago Emma Mary 0 answers

A gun fires a shell at an angle of elevation of 30 degrees with a velocity of 2*10^3m/s. What is the horizontal and vertical component of the velocity? What is the range of the shell? how high will the ball rise

Seen 2 years ago Gagnon Martin 1 answers

You are practicing throwing darts in your dorm. You stand 2.69 m from the wall on which the board hangs. The dart leaves your hand with a horizontal velocity at apoint 1.98 m above the ground. The dart strikes the board at a point 1.77 m from the ground.

Calculate the time of flight of the dart.

Seen 1 years ago Brown Walsh 1 answers

Which of the following is defined as the attractive forces between polar molecules?I. dispersion forces;II. dipole-dipole interactions;III. ion-dipole interactions

Seen 2 years ago Isabella 0 answers

What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?

Seen 1 years ago Harry Callum 1 answers

Calculate the mass of K4Fe(CN)6 * 3H2O needed to prepare 100.00mL of .0250M solution.

Seen 1 years ago Amelia Margaret 0 answers

When two or more capacitors are connected in parallel to a battery,

a) the equivalent capacitance of the combination is less than the capacitance of any one of the capacitors.
b) each capacitor carries the same amount of charge.
c) the voltage across each capacitor is the same.
d) all of the given answers
e) none of the given answers

Seen 1 years ago Harvey obrien 4 answers

What kind of animal cells might have alot of mitochondria present?

Seen 1 years ago Harry Callum 1 answers

Calculate the pH of a solution that is 1.15×10?3M in HCl and 1.10×10?2M in HClO2.

Seen 1 years ago Madison 1 answers

a boat heading due north crosses a wide river with speed of 12km/h relative to the water the water in the river has a uniform speed of 5 km/h due east relative to the earth.determine the velocity of the boat relative to an observer standing on either bank and the direction of boat

Seen 2 years ago Lam Williams 2 answers

a scientist has two samples of a substance. both samples have the same temperature. one sample has a mass of 10 g. the other sample has a mass of 20 g. compare the average kinetic energy and total kinetic energy of the particles in each sample.

Seen 2 years ago Lee White 2 answers

What physical process is being observed using spectroscopic measurements in Beer's Law experiment?

Seen 1 years ago Harvey obrien 1 answers

A mass m1 = 5.6 kg rests on a frictionless table. It is connected by a massless and frictionless pulley to a second mass m2 = 3.8 kg that hangs freely.
1) What is the magnitude of the acceleration of block 1?
m/s2
2) What is the tension in the string?
N
3)
Now the table is tilted at an angle of ? = 69.0° with respect to the vertical. Find the magnitude of the new acceleration of block 1.
m/s2
4) At what “critical” angle will the blocks NOT accelerate at all?
°

5) Now the angle is decreased past the “critical” angle so the system accelerates in the opposite direction. If ? = 19.0° find the magnitude of the acceleration.
m/s2

6) Compare the tension in the string in each of the above cases on the incline:
T? at 69.0° = T?critical = T? at 19.0°
T? at 69.0° > T?critical > T? at 19.0°
T? at 69.0° < T?critical < T? at 19.0°

Seen 1 years ago Williams O'Sullivan 1 answers

Volume of Box: 1.04*10^7m3
Density of Marble: 2.53*10^3kg/m3

How many marbles could fit into the equipment box?Consider 11% of the volume of the box to consist of the empty space between marbles, so that only 89% of the boxvolume actually contains glass. Calculate the mass of this many marbles in kilograms.

Seen 2 years ago Garcia 0 answers

A nail gun fires a nail into a piece of wood. The nail is going a velocity of 9.0 m/s right before entering
the wood. The mass of the nail is 0.060 kg and the average force on the nail is 6.1 N.
(a) Find the acceleration of the nail.
(b) How far into the wood does the nail go?
(c) From entering the wood, how long does it take the nail to come to a stop?

Seen 2 years ago Brown Walsh 0 answers

a compound that has positive and negative ions in a regular pattern or crystal is an_______________

Seen 2 years ago James Charlie 1 answers

What is the conjugate base of HCO3-?

Write answer as chemical formula

Seen 2 years ago Emily Elizabeth 1 answers

Two copper cylinders, immersed in a water tank at 50.0 oC contain helium and nitrogen, respectively. The helium-filled cylinder has a volume twice aslarge as the nitrogen-filled cylinder.a) Calculate the average kinetic energy of a helium molecule and the average kinetic energy of a nitrogen molecule.b) Determine the molar specific heat at constant volume.c) Find γ for the two gases. (ratio of molar specific heats)Please include all formulas, equations, and work. Use units wherever possible. Lifesaver for the first clear answer. Thanks!

Seen 1 years ago Garcia 0 answers

A 1.0 µF, 2.0 µF, and 3.0 µF capacitors are connected in parallel across a 24-V battery. How much energy is stored in this combination when the capacitors are fullycharged?

Seen 1 years ago James Charlie 0 answers

Number Achievement

11.7m

Questions

31.4m

Answers

Topics

686k

Users

New Questions

208:4 208/4=52mi/hr

Seen 5 months ago by brent

Studies show that kids who eat family meals tend to......

Seen 5 months ago by philiesa dilworth

Farmers believed that railroads were public......

Seen 5 months ago by philiesa dilworth