A 0.035 bullet strikes a 5kg wooden block that is stationary and gets stuck inside the block. The block and bullet move together at 8.6 m/s. What is the initial velocity of the bullet?

Answers

Answer 1

Answer:

1240 m/s

Explanation:

[Do you mean 0.035 kg bullet?]

Since the momentum of the system is conserved,

Let u m/s be the initial velocity of the bullet

0.035u = 8.6(5+0.035)

u ~= 1237.1714 m/s

u = 1240 m/s (3 sig. fig.)


Related Questions

Giving Brainliest

Please help, Stay Safe and healthy

Answers

Answer: A I think

Explanation:

The oldest rock would be letter D.

According to the law of superposition, rocks found at the bottom are the oldest ones. The rocks on the top parts are the youngest.

If the half life of a decaying isotope is 10 years, which statement is true after 8 years

Answers

You need to tell us the different statements in order to answer your question

Answer:

is suppoesd to say after 20 yrs

Explanation:

What is the speed of a 1600kg car if its momentum is 120,000kgms?

Answers

Answer:

Velocity of car = 75 m/s

Explanation:

Given:

Mass = 1,600 kg

Momentum = 120,000kgm/s

Find:

Velocity of car

Computation:

Velocity = Momentum / mass

Velocity of car = 120,000 / 1,600

Velocity of car = 75 m/s

5. You are running at your maximum speed of 6m/s to catch a bus which is
standing at the bus stop. The bus move off with an acceleration of 1m/s when
you are 20 m from it.
A. Can you catch the bus?
B. Show graphically.​

Answers

jsudjdndkdjddjdjxixidjdjxjx

How much force would it would be required to stop a 950kg car traveling at 30 M/S in 1.5 seconds

Answers

Answer:

28500

Explanation:

Force equation - F = m * a

F = 950 * 30

F = 28500

If a force of 3000 N can move a crate at an acceleration of 9.2 m/s2, what is the mass of the object?

Answers

Answer:

326 kg

Explanation:

m=f/a

3000/9.2=326 kg

Write a scientific explanation about weather or not a single cell constitutes a system. (CER)

Answers

Answer:

Weather such as raining has water molecules/droplets thats been evaporated from the ocean and other areas that's wet, the water will connect and soon the mass of the water will become heavy causing rainfall. Snow in another case has been caused to freeze from low climates creating a snow flake to fall from the sky. Hail is another case however the water that becomes ice is far more larger.

The variety of activities that take place daily in our atmosphere makes up for the weather.

What is the weather like?

The weather varies across the globe and changes over a few minutes, hours, days, and weeks. The troposphere, the region of Earth's atmosphere closest to the surface, is where most weather occurs.

Changes in air pressure determine the weather that occurs in a given place. The weight of the enormous quantities of air molecules that make up the atmosphere is what causes air pressure.

Usually, clear, blue skies are seen when air pressure is high. The high pressure prevents clouds from developing by causing air to flow down and fan out as it gets close to the ground.

Low air pressure causes air to move together before converging upward, where it rises, cools, and forms clouds.

To learn more about the weather, refer to the link:

https://brainly.com/question/14426457

#SPJ2

The cornering performance of an automobile is evaluated on a skid pad, where the maximum speed that a car can maintain around a circular path on a dry, flat surface is measured. Then the centripetal acceleration, also called the lateral acceleration, is calculated as a multiple of the free-fall acceleration g. The main factors affecting the performance of the car are its tire characteristics and suspension system. A Dodge Viper GTS can negotiate a skid pad of radius 61.0 m at 86.5 km/h. Calculate its maximum lateral acceleration.

Answers

Answer:

0.04g

Explanation:

Since it lateral acceleration is is its centripetal acceleration, the centripetal acceleration, a is given by

a = v²/r where v = speed of Dodge Viper GTS= 86.5 km/h = 86.5 × 1000 m/3600 s = 24.03 m/s and r = radius of skid pad = 61.0 m.

So, a = v²/r

= 24.028 m/s ÷ 61.0 m

= 0.394 m/s²

So, its maximum lateral acceleration is 0.394 m/s². Since g = acceleration due to gravity = 9.8 m/s²

a/g = 0.394 m/s² ÷ 9.8 m/s² = 0.04

So, a = 0.0402g

a ≅ 0.04g

100 POINTS!!!
Which condition is NOT necessary for a hurricane to form?
warm ocean waters
very low air pressure
high air pressure
warm, moist air rising

Answers

Answer:

very low air pressure and that's not 100 points

At the center, 6 unmarked red balls are interspersed with 4 blue balls marked with plus signs. A green cloud with 2 concentric white lines surrounds the center, with 2 small green balls marked with minus signs on the inner white line and 2 small green balls marked with minus signs on the outer white line. How many neutrons does this atom have? 4 6 10 14

Answers

Answer:

10

Explanation:

Amu denotes for unified atomic mass.

it is mostly used to define the atom's mass and molecules.

we know that

One unit of amu is 1 ÷ 12 of the mass of a nuclide 12C

And 1 u = 1.660 538 921 × 10-27 kg

In the inside we can found that there is 10 nucleons so here the alss of the atoms would be 10 amu  

Answer:

guy above me is right

Explanation:

Why is the sky blue? The earth is surrounded by an atmosphere.

Answers

Answer:

The blue component of the spectrum of visible light has shorter wavelengths and higher frequencies than the red component. Thus, as sunlight of all colors passes through air, the blue part causes charged particles to oscillate faster than does the red part. The faster the oscillation, the more scattered light is produced, so blue is scattered more strongly than red. For particles such as air molecules that are much smaller than the wavelengths of visible light the difference is dramatic. The acceleration of the charged particles is proportional to the square of the frequency, and the intensity of scattered light is proportional to the square of this acceleration. Scattered light intensity is therefore proportional to the fourth power of frequency. The result is that blue light is scattered into other directions almost 10 times as efficiently as red light.

What is MyPyramid?
a.exercise program
b.health insurance plan
c.method of treating mental illness
d.guidelines for healthful eating

Answers

Answer:

d

Explanation:

lol Hope's this helps lovely

A student is trying to demonstrate static electricity, so they rub two identical balloons with a neutral rabbit fur to give them a charge. How
do these three objects now behave when brought near to each other?
o A. They all attract each other.
OB. The balloons repel each other but attract the rabbit fur.
C. They all repel each other.
D. The balloons attract each other but repel the rabbit fur.

Answers

Answer: The balloons repel each other but attract the rabbit fur.

Brainliest pwease if I could do you any help!

˙ᵕ˙

Here, both the balloons gains a negative charge through rubbing and they attracts to the neutral rabbit fur. But the balloons themselves repel each other. Hence, option B is correct.

What is static electricity ?

When a  material rub on a surface its electrons gets aligned and acquire a negative charge. This negative charge when comes in contact with a neutral material, the second one get partially polarized and gets attracted to the negative charge.

This flow of electrons through induced polarization is called static electricity. When the balloon are rubbed with the neutral rabbit fur and gets negatively charged by friction.

This negatively charged balloons repel each other but they induce a polarity to the neutral rabbit fur and its positive charges gets aligned with the negative charges results in electrostatic attraction.

Find more on static electricity:

https://brainly.com/question/12791045

#SPJ2

Derive, with full working, the symbol equation for the power output P watts of the energy transfer that occurs when a mass of m kg falls through a height of h metres in t seconds.

Answers

I agree that the height is kg or an maybe

briefly discuss university need based scholarships and explain them.​

Answers

Answer: Scholarships are given to reduce the burden of finance to be payed for academics and learning.

Explanation:

The need based scholarships are given in the following matters:

1. Research based scholarships: Scholarships should be given to meritorious students to conduct research in a particular discipline.

2. Student fails to submit fees: The student if meritorious and family is not able to fees then university can either postpone the date for fees payment or can give some concession in fees or fund the student fees for a tenure. It is a kind of scholarship for meritorious students.

3. Teacher scholarships: Teachers are allowed to learn new teaching methodologies with other institutions so that they can help students to learn well. They are provided with scholarships to avail admission in those institutions.

When air warm up the air molecules move slower?

Answers

Warmer air has less molecules, so they can move more freely and in turn become faster. Cold air is denser with molecules so there's not as much room to move, making them slower.

How much work is done when a person raises a 10 N bag 5 meters off the ground?

Answers

Answer:

Work done W = 50 N-m

Explanation:

Given:

Force F = 10 N

Distance s = 5 meter

Find:

Work done

Computation:

Work done is formulated way that it includes both Applied force upon thing and  displacement of thing.

W = fs

W = 10 x 5

Work done W = 50 N-m

Which describes the innermost layer of Earth?​

Answers

Answer and Explanation:Option A->The innermost layer of the earth is known as the core. It is divided into inner core and outer core. It comprises of a high concentration of nickel and iron.


If a scientist is designing a device to create high energy electromagnetic waves, which type of wave would the device most likely create?
А
microwaves
B
infrared waves
с
ultraviolet waves
D
gamma ray waves

Answers

Answer: letter C! Is the answer

Why do bones weaken as a person gets older

Answers

Answer:

The bones aren't as strong as a younger person, because an older person, ages due to time and it also depend on what they do in their past.

Does this help? ^-^"

A hockey stick moves toward a puck sitting on ice. A blue arrow labeled A points up from the puck. A blue arrow labeled F subscript g points down from the puck. What force is represented by vector A? If the hockey puck is moving to the right, what will happen when it is hit with a significant force by the hockey stick?

Answers

Answer:

normal force, the pluck will move off in a different direction

Explanation:

Answer:

Normal force, the puck will move off in a different direction

Explanation:

Which chemical change describes the reactions of elements and compounds that, in general, do not involve carbon and typically take place in laboratories or industries?

Answers

Answer:

Inorganic.

Explanation:

The chemical change which describes the reactions of elements and compounds that, in general, do not involve carbon and typically take place in laboratories or industries is inorganic.

In Chemistry, an inorganic chemical reaction can be defined as a type of chemical reaction that occurs without a carbon-hydrogen bond.

On the other hand, organic chemistry deals with reaction that occur in the presence of carbon-hydrogen bonds such as hydrocarbons.

A toy car of mass 1kg moves at 2 m/s. If a 3N force is applied for 1.9 seconds. What is the cars final velocity? Answer to 1 decimal. Help fast please. I'll mark brainliest :)

Answers

Answer:

7.7 m/s

Explanation:

Initial speed=2 m/s

mv=Ft

1*v=3*1.9

v=5.7 m/s

5.7+2=7.7

What is the mass of a 50kg object in space with no gravity?

Answers

Answer:

The answer would be 0kg.

Your welcome.

A student pulls out his or her chair in order to sit down. The student pulls the chair 0.75 m with a force of 20 N. How much work does he or she do on the chair?

Answers

Work = Force x displacement
Force= 20N
Displacement= 0.75m

W= 20(0.75)
W= 15 Nm

A 10.0 kg mass is moving with constant speed of 10.0 m/s.
a.) How much work must be done to double the speed to 20 m/s?
b.) How much work must be done to reduce its speed to 5.0 m/s?

Answers

Answer:

what is the question name

X=Y=MC scourer that would be the answer for you mam or sir

Answers

Me das mas información?

Answer:

jello

Explanation:

it jiggles

Plzzzz help hurry plzzzzzz plzzz

Answers

Answer:

The first one is C, and the second is not clear please show another photo

Explanation:

static_______

sliding______

rolling_______

fluid_________

Answers

Answer:

a car

A sled sliding across snow or ice.

a ball down a hill

mercury

Explanation:

Static reaction

Sliding down a water slide

Rolling down a hill

Fluids running down a pipe

A penguin swimming underwater goes 20 meters in 5 seconds. What is its average speed?

Answers

Answer:

4 meters per second

Explanation:

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