PHYSICS MIDDLE SCHOOL

What is momentum of a 18.0 g bullet moving with a velocity of 400 m/s to the right.

Answers

Answer 1
Answer:

Answer:7.2kgm/s

Explanation:
Answer 2
Answer:

Answer:

7,200 g · m/s

Explanation:

Momentum formula:

p = mv

p = momentum

m = mass

v = velocity

p = (18)(400)

p = 7,200 g · m/s

Related Questions

Can you use a heat pump to provide the temperature difference to run a heat engine?Yes, a heat engine runs on heat.Yes, a heat pump moves heat.No, heat is not created.No, the heat supplied does not create a large enough temperature difference.
Waves sometimes travel by squeezing together and then do what
How do frequency relate to energy
If u speed up from rest to 12 m/s in 3 seconds, what is your acceleration
a ball is thrown upwards. after 2.5s, it has risen 50m. at what velocity was it thrown upwards? assume g = 10m/s squared.

It is difficult to walk with shoes having heals​

Answers

this question confuses me? are you asking is it difficult to walk WITH high heels?

but to answer your question, it all depends on the person. some people are naturally good at walking in heels and others could have trouble wearing them for too long, or walking normally.

PLEASE HELP ON MORE SCIENCE! :)

Answers

1 is standing wave
2 is Constructive Interference
3 is longitudinal 
4 is first choice
5 is first choice
The second one: "Constructive interference" even though the question confused me

what issues might arise in determining the latent heat of something that sublimes in comparison to something that melts

Answers

Answer:

Sublimation is defined as the direct transition of a substance from solid state to gaseous state. The latent heat of sublimation is the sum of heat required for conversion from solid to liquid and heat required for conversion from liquid to gas. As in sublimation solid substance directly goes to gaseous state therefore, it is very difficult to find the components of latent heat of sublimation. This is the issue which arises in determining latent heat of sublimation.

On the other hand, when substance is melted it physically goes from solid to liquid. One can easily measure the heat required for this conversion.

Final answer:

Latent heat determination challenges differ between substances that sublime and those that melt. Sublimation involves a solid-to-gas change, typically under low pressure, making it difficult to contain the gas and measure accurate energy changes. In contrast, melting transitions from solid to liquid, with challenges in accurately measuring temperature change and ensuring complete melting.

Explanation:

When determining the latent heat of substances, different issues can arise depending on if the substance sublimes or melts. Melting is a transition from a solid to a liquid state, while sublimation involves a transition directly from a solid to a gas state.

One issue that might arise would be managing the environmental conditions. Sublimation often happens at low pressure, and ensuring a consistent low-pressure environment can be challenging. Also, because the substance is transitioning directly to a gas, it may be more difficult to accurately measure the energy change as some gas may escape during the process.

For melting substances, the issues are different as one is transitioning from a solid to a liquid state, and it's typically measured at atmospheric pressure. Accuracy in measuring the temperature change and ensuring the entire substance has completely melted are potential challenges.

Learn more about latent heat here:

brainly.com/question/35905586

#SPJ6

I was an American inventor and businessman who is best known for inventing the electric light bulb. Who am I?

Answers

You are Thomas Alva Edison.  You also invented the phonograph
and the first practical movie camera.  Sadly, you died almost exactly
9 years before I was born.
The one man, who was famous and was also known for inventing the electric light bulb..was the one and only...Thomas Edison!!!

Scientists can find the absolute age of a rock by using

Answers

By using the radiometric age dating

When polarizing an object, what happens to the charges in the object?A. They swirl about like bees in a hive.
B. They separate, with positive charges on one side and negative
charges on the other.
C. The protons drain off, leaving the object negatively charged.
D. They repel each other and spread out all around the outer surface.

Answers

Answer:

B. They separate, with positive charges on one side and negative

charges on the other.

Explanation:
Other Questions
To calculate power, divide the amount of energy transferred by...?
A person is rowing across the river with a velocity of 4.5 km/hr northward. The river is flowing eastward at 3.5 km/hr (Figure 4). What is the magnitude of her velocity ( v ) with respect to the shore?
What will happen to the mass and volume of a block if their is two blocks, three, blocks or four blocks? For example, if the mass of a block is 7g and the volume is 15.625, what will that be if more blocks are added? Please help it is much apreciated!
Examine the reactants of the incomplete double displacement reaction.AgNO3 + NaCl → _[blank].What are the products of the double displacement reaction?AgCINaNO3Ag + Cl + Na + NO3AgCINa + NO3AgCl + NaNO3