Sven's team put its insulated ice cube into a sealed plastic container. Which
type of thermal energy transfer was the team trying to prevent?
A. Radiation
B. Convection
C. Conduction
D. Translation

Answers

Answer 1
They are trying to prevent convection
Answer 2

Answer:B

Explanation:


Related Questions

Which condition causes a hurricane to rotate?

a local storm surge
the Coriolis effect
several large waves
severe coastal flooding

Answers

Answer:

b

Explanation:

The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.

What is the Coriolis effect?

Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.

The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.

Therefore, the correct option is B.

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A rock is thrown downwards from the edge of the Grand Canyon. With what velocity will it hit the donkey-riding tourist who is 40 m below?​

Answers

Final velocity= 28 m/s

which is the hottest planet

Answers

Answer:

venus

Explanation:

its the closest to the sun

could you plz vote me brainliest? thx :)

Answer:

Venus because it really close to the sun.

Explanation:

If the vector below is multiplied by 2, what will be its end point? 5 A. (-6,8) B. (6,8) C. (-6,4) D. (-3,4) SUBMIT E PREVIOUS O re to search​

Answers

Answer:

A

Explanation:

When you multiply a vector by a scalar the magnitude will change but the direction will not change.

A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s. The vector sum of all the forces acting on this crate must point down the ramp. True or false?

Answers

Answer:

False

Explanation:

Given: A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s.

To find: whether the given statement is true or false

Solution:

As a crate is sliding down an inclined ramp at a constant speed of 0.55 m/s, net force is equal to 0 and so, the vector sum of all the forces acting on the crate can't point anywhere.

So, the given statement is false.

Pick a correct term to fill in the blank: kgm/s2, pounds, tons, kg
One Newton equals 0.225

Answers

Answer:

Pounds

Explanation:

If the spring constant is doubled, what value does the period have for a mass on a spring?

Answers

if spring constant is doubled, the mass on spring will be doubled as well. according to this formula, F=ke

k stands for spring constant and e stands for the length extended

The period T = 2 pi square root ( k / m )
If the spring constant k is doubled then T increases by a factor of square root 2 so it becomes (square root 2) * T

Explain the conversion of energy in a roller coaster. Explain how energy is converted

Answers

As the rollercoaster goes up. kinetic energy changes to gravitational potential energy. When it moves back down, gpe changes back to ke.

A cat walks 1.5km South and then 2.4km East. What is the total displacement of the cat?

Answers

Displacement = sq root ( 1.5 ^2 + 2.4 ^2) Km
Angle (east of South) = inv tan (2.4/1.5)

Contact and Non-contact Forces Assignment
Now that you have learned about forces, complete and submit the following assignment.

For the following situations, describe the contact and non-contact forces that are involved.

Situation
Contact Force(s)
Non-Contact Force(s)
A book sitting on a shelf






A soccer player kicking a ball; the ball soaring through the air and landing on the ground






A hiker in the woods reading her compass to determine which direction to go






A child on a sled; first, the child is sitting at the top of the hill, waiting his turn; then, the child pushes off and slides down the hill, eventually coming to a stop.

Answers

Answer:

I didn't know the subject but I researched and understood so...here goes!!

A book resting on a shelf: contact force- reaction force

                                          non contact force: gravitational force

Soccer ball- contact force- air resistance

                   non contact force- gravitational force

Compass- contact force- reaction force

                non contact force- magnetic force

child on sled- contact force- friction

                      non contact force- gravitational force

Explanation:

looking at the velocity vs time graph, between points b and c on the graph, the object was
1. at rest
2. decelerating
3.accelerating
4. going a constant velocity

Answers

Between B and C, the object was going at a constant velocity; it is going 60 m/min consistently for that time frame.

If there is no electric current in a coil of wire with a permanent magnet at its
center, which statement must be true?
A. The wire is not moving relative to the magnet.
B. The coil of wire is shorter than the magnet.
C. The coil of wire is longer than the magnet.
D. The wire is moving relative to the magnet.

Answers

D. With respect to the magnet, the wire is in motion.

What'd happen if a magnet was inserted and removed from a copper wire coil?

An electrical discharge is created when a wire loop as well as a bar magnetic are moved in tandem.This current is generated as a result of a change in the field's intensity near the coil.Both the system is a process and the induced emf that creates it are induced phenomena.

What is required to create an electric current in a magnet enclosed in a loop of wire?

The electrons inside the wire are pushed when a magnet is moved around it or when a coil of wire is moved around a magnet, producing an electrical current.

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could you guys tell me whether the photo represents a balanced or unbalanced equation​

Answers

Answer:

that is preatty balenced m8

Explanation:

1. Express the following quantities in scientific notation.
a. 5800 m
c. 302 000 000 m
b. 450 000 m d. 86 000 000 000 m

Answers

5.8x10^3
3.02x10^8
4.5x10^5
8.6x10^10

Answer:

a. 5.8 ³

C.  3.02⁸

D.  4.5⁵

B.8.6¹⁰

Explanation:

you must record your daily work outs on a?
A. activity chary
B. journal
C.calendar
D. fitness log

Answers

Answer:

D. Fitness log

Explanation:

because you are working out it would me the most since to use something specifically for work outs and exercise

Answer fitness log

Why
Because your working out and your gonna record your work outs which I’m sure a fitness log is for that

Main Street is approximately 0.25 miles long, How many yards long is Main Street if I mile is
equal to 1760 yards?

Answers

Answer:

440

Explanation:

1 mile =1760 yards

0.25 miles =?

[tex] \frac{0.25 \times 1760}{1} [/tex]

=440 yards

The speed required of a military jet when taking off from the deck of an aircraft carrier is dependent upon the speed of the carrier and the speed of the wind into which the carrier is moving. The takeoff speed required of a military jet relative to the deck of the carrier is 45 m/s. Determine the acceleration which a military jet must have to take off from the 126-m long runway of the USS Ronald Reagan aircraft carrier.

Answers

9514 1404 393

Answer:

  8.04 m/s²

Explanation:

A suitable formula is ...

  v² = 2ad

  a = v²/(2d) = (45 m/s)²/(2(126 m))

  a ≈ 8.04 m/s²

The acceleration is about 8.04 m/s².

a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?
a. 50:1
b. 1:50
c. 5:1
d. 1:5

Answers

Answer:

its b) 1:50 just did it on apex

Explanation:

a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?

a. 50:1

b. 1:50 this is right

c. 5:1

d. 1:5

Kim sees a dog jump onto the road. Her response time before she hits the brakes is 0.3 seconds. How far will her car travel during her response time if she is moving at 20 m/s?

Answers

Answer:

6 seconds i think

Explanation:

Which set of experimental conditions would result in the least amount of force on the egg?
a. Drop a small egg from a height of 1 meter into a box of foam.
b. Drop a jumbo egg from a height of 10 meters on a hard surface.
c. Drop a jumbo egg from a height of 10 meters onto 1-inch foam.
d. Drop a small egg from a height of 1 meter into a box of foam.
e. Drop a small egg from a height of 10 meter into a box of foam.

Answers

A because it is the it is the it is the it is there ither iee dd

All indicate that the universe is

A) rotating.
B) expanding.
C) shrinking.
D) at equilibrium.

Answers

Answer:

if its talking about earth then rotate I'll say

Answer:

universe is expanding

Why do clouds, and sometimes precipitation, typically form along a frontal boundry such as a warm front?

Answers

Answer:

In the case of a warm front, the warm, less dense air rises up and over the colder air ahead of the front. Again, the air cools as it rises and its moisture condenses to produce clouds and precipitation.

Explanation:

Hope this helps u

Crown me as brainliest:)

what is food poisoning ?​

Answers

Answer:

salmonella and from eating raw food

Explanation:

Answer:

Food Poisoning is bad very bad. You can get the following sicknesses:  cramping, nausea, vomiting, or diarrhea. It usually comes from food that has a lot of Germs in it, Bacteria, Viruses, etc. But it is not usually something that can kill you, just go to your doctor and they might give you medicine to stop the Poisoning.

Condensation raises the temperature of the vapor (True or False).

Answers

Answer:

true

Explanation:

1. A boat initially moving at 10 m/s accelerates at 2 m/s2 for 10 s. What is the velocity of the boat after 10 seconds?​

Answers

Answer:

5 m/s is the answer so yeah

What is necessary for a metallic bond to form?

The atoms should be in close proximity.
The atoms should be far apart.
The electrons must be attracted to each other.
The nuclei must contain neutrons.

Answers

Answer:

It is B The atoms should be far apart.

Explanation:

I did Ed test :)

Answer:

The answer is B, The atoms should be far apart

Also i think that they both needed to be metals as well, but that is not included

Explanation:

A bicyclist is initially traveling at 3 m/s. The bicyclist accelerates at 1 m/s2 for 5 seconds.

a. What is the bicyclist’s final velocity?

b. What is the distance traveled?
(Whoever answers first will be marked the brainliest)

Answers

The change in velocity is 5m/s which added to the initial 3m/s makes the final velocity 8m/s

Distance = (3*5) + (1/2*1*5^2)= 15+12.5= 27.5m

What is the density of a 150cm 3 block with a mass of 700 grams?

Answers

Answer:

The Density of the block is 4.667g/mL

Explanation:

Given the following data;

Mass of block = 700g

Volume of block = 150cm³

Density = ?

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the equation;

[tex]Density = \frac{mass}{volume}[/tex]

Substituting into the equation, we have;

[tex]Density = \frac{700}{150}[/tex]

Density = 4.667g/mL

How do we detect the cosmic microwave background radiation?

Answers

In 1964, US physicist Arno Penzias and radio-astronomer Robert Woodrow Wilson rediscovered the CMB, estimating its temperature as 3.5 K, as they experimented with the Holmdel Horn Antenna.

The weight of a boy having a mass of 50 kg is __N.
???

Answers

Answer: 490N

Explanation:

Newton is the unit for force. Force = mass x acceleration

F=N m=50kg a=9.8 (earth's acceleration of gravity)

F=50X9.8

F≈490N

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