A bullet fired from a pistol travelled 50 metres to the target in 0.08s. What was its speed?

Potential energy converts kinetic energy when the range is shifting from the S pole to the N pole.

If you like, I can put in more detail!

Answer:

L=load LA=load arm

E=effort EA=effort arm

Answer:

Often the independent variable is plotted on the x-axis - and example might be time (an experiment where time is measured by a watch or an independent mechanical device)

The dependent variable is often plotted on the y-axis - and example here might be the velocity or the acceleration,

It may be the responsibility of the experimenter to determine the value of the dependent variable by some type of measurement

Taking into account the definition of speed, you get that the average speed of the entire trip is 53.33 [tex]\frac{mi}{hr}[/tex] .

It is necessary to know that speed ​​is a quantity that expresses the relationship between the space traveled by an object and the time used for it.

In other words, speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:

[tex]speed= \frac{distance traveled}{time}[/tex]

In this case, you know that the shipping mall is 40 miles from the woman's house and that she is going to the mall and back home. So it runs the 40 miles of distance twice. So the distance traveled is 80 miles.

On the other hand, you know that on the trip to the mall she averages 80 [tex]\frac{mi}{hr}[/tex]. Since the woman travels the first 40 miles at that speed, and taking into account the definition of speed, the time it takes to go to the shopping mall is calculated as:

[tex]80\frac{mi}{hr} = \frac{40 mi}{time}[/tex]

Solving:

time× 80 [tex]\frac{mi}{hr}[/tex]= 40 mi

[tex]time = \frac{40 mi}{80\frac{mi}{hr}}[/tex]

time=0.5 hr

Finally, you know that on the return trip she averages just 40 [tex]\frac{mi}{hr}[/tex]. Since the woman travels the second 40 miles at that speed, and taking into account the definition of speed, the time it takes to return to her home is calculated as:

[tex]40\frac{mi}{hr} = \frac{40 mi}{time}[/tex]

Solving:

time× 40 [tex]\frac{mi}{hr}[/tex]= 40 mi

[tex]time = \frac{40 mi}{40\frac{mi}{hr}}[/tex]

time=1 hr

Then, the total time of the trip, which consists of going to the shopping mall and returning home, is calculated as:

total time= 0.5 hr + 1 hr

total time= 1.5 hr

Finally, taking into account the definition of speed, average speed of the trip is calculated as:

[tex]speed= \frac{80 miles}{1.5 hr}[/tex]

Solving:

speed= 53.33 [tex]\frac{mi}{hr}[/tex]

In summary, the average speed of the entire trip is 53.33 [tex]\frac{mi}{hr}[/tex] .

Learn more about average speed:

Answer:

42.5J/kgk

Just use the formula

C = Q/m x change in temp

Religious customers seem to avoid their products because;

When selling a product to potential customers, the brand name of that product could affect sales negatively or positively.

Religious people do not view the devil in a positive manner because they believe that he is responsible for the suffering in the world.

The already existing bias they have in their minds about that name will make them reject any product bearing the name. They might even reason that this medicine will worsen their sickness. For this reason, the medicine called "Devil Red" will have a poor reception by religious people.

Summarily, religious people avid the medicine called Devil Red because they have a negative view of the devil.

Learn more about brand names here:

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Answer:

1.67m/s

Explanation:

Total Distance to be travelled by a Runner=100m

Time Taken=10*6s

Speed=Distance/Time

=100/10*6=10/6=1.67m/s

The answer you are looking for is approximately 1.67 m/s.

Solution/Explanation:

Distance Ran: 100 m.

Time ran: 10x6s, or 60s, or one minute.

Speed: Unknown?

Writing out the formula for speed, using distance and time,

S=D/T.

S=Speed.

D=Distance.

T=Time.

Substituting the given values of the variables,

S=100 m/10x6s, or S=100 m/one minute, or S=100 m/60s.

100÷60=1.6667≈1.67.

So, therefore, the final answer is approximately 1.67 m/s.

I hope that this has helped you. Enjoy your day, and take care.

Explanation:

because his lower body is in inertia of motion.

Hope it helps

Answer:

Option (I)

Explanation:

The independent varible is arm length. Therefore, to eliminate the effect of other factors and make a valid and effective conclusion, only the arm length should be changed, while other factors (mass, force and materials) should remains the same.

Answer: Only the arm length should be changed. The mass should remain the same.

Explanation:

Answer:

1. it is universal means of communicating scientific information

2. meter

3. computer, internet, laboratory, and field

Answer: Scientific theories are never proven.

Explanation:

Answer:

b

Explanation:

jdjgevevehudbeeceiej

There are several models that outlines the scientific method, which is

based on formulating an hypothesis to answer observed phenomena, and

testing the hypothesis to see if it is correct

The correct option for the explanation for the step between experimenting and conclusion is option D

(D) The need to evaluate the meaning of the experiment's results before

drawing a conclusion

The steps in the scientific method are designed to help solve existing

problems and they include;

The step that comes between experimenting and conclusion is the

analysis of the experimental result to extract the information from the raw

experimental data, so as to evaluate the hypothesis and also the

procedure of the experiment. After the analysis, conclusion is drawn and

reported followed a new hypothesis is formulated or the existing

hypothesis is expanded upon, Therefore, the correct option is option D.

The need to evaluate the meaning of the experiment's results before

drawing a conclusion

Learn more about the scientific method here:

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Answer:

kilo means 1000

2a. 0.1

b. 100

c.0.01

d. 0.001

3a.km

b.mL

d.cg

e.mm

g. g

h.kL

Answer:

51.96 inches

Explanation:

Multiply 1.32 by 39.37

Answer:

52.0 inches

Explanation:

1.32 meters * 39.37  = 51.96 inches ~ 52.0 inches

My answer is in the picture

Swipe the pictures to see the others

Answer:

analyze

Explanation:

Answer:

The bonds can shift because valence electrons are held loosely and move freely.

Explanation:

Ill put the rest of the answers in the comments

Answer:

The bonds can shift because valence electrons are held loosely and more freely.

Answer:

So, if a body is taken to moon, the moon attracts the body with a force less as compared to the attraction force by the earth. Hence the weight decreases.

Explanation:

Answer:

6N

Explanation:

F = m × g

= 0.6 × 10

= 6N

to find the force you first have to convert the mass to kg by dividing 600 by 1000 giving you 0.6

then you can multiply the mass times the gravity giving you a gravitational force of 6N

"Gamma rays" is the name that we call the shortest of all electromagnetic waves.  They're shorter than radio waves, microwaves, infrared waves, heat waves, visible light waves, ultraviolet waves, and X-rays.  They extend all the way down to waves that are as short as the distance across an atom.

Being so short, they carry lots of energy.  They can penetrate many materials, and they can damage living cells and DNA.  They're dangerous.

The sun puts out a lot of gamma radiation.  The atmosphere (air) filters out a lot of it, otherwise there couldn't even be any life on Earth.  

As soon as astronauts fly out of the atmosphere, they need a lot of shielding from gamma rays.

You know the precautions we take when we're around X-rays.  The same precautions apply around gamma rays, only a lot more so.

It's only in the past several years that we've learned how to MAKE gamma rays without blowing things up.  Also, how to control them, and how to use them for medical and industrial applications.

Explanation:

Gamma rays are ionizing electromagnetic radiation, observed by the decay of an atomic nucleus.

Uses of gamma rays :

Answer:

melting

Explanation:

that works best

Answer:

White light entering a prism is bent, or refracted, and the light separates into its constituent wavelengths. Each wavelength of light has a different colour and bends at a different angle. The colours of white light always emerge through a prism in the same order—red, orange, yellow, green, blue, indigo, and violet.

Answer:

200J

Explanation:

K.E=½mv²

K.E=½×16kg×5m/s²

K.E=8kg×25

K.E=200J

Answer:

Pressure is 1.96 × 10^12 Pa

Explanation:

[tex]{ \bf{pressure = \frac{force}{area} }}[/tex]

height = 4 cm = 0.04 m

density = 20 g/cm³ = 20,000 kg/m³

But for force:

[tex]{ \sf{force = mass \times acceleration}} \\ { \sf{force = ( \frac{density}{volume} ) \times acceleration}} \\ \\ { \sf{force = ( \frac{20000 }{0.04 {}^{3} }) \times 10 }} \\ \\ { \sf{force = 3.13 \times {10}^{9} \: newtons}}[/tex]

For area:

[tex]{ \sf{area = 0.04 \times 0.04 = 0.0016 \: m {}^{2} }}[/tex]

[tex] { \tt{pressure = \frac{3.13 \times {10}^{9} }{0.0016} }} \\ \\ = { \tt{1.96 \times {10}^{12} \: pascals}}[/tex]

Answer:

a. Frictional force

b. Magnetic force

c. Gravitational force

Answer:

frictional force

magnetic force

gravitational force

hope this helps!

Answer:

if the distance between them is halved then gravitational force will be doubled....

Answer : 53.3 km/hr.

explanation