I need help I do test I scared

I Need Help I Do Test I Scared

Answers

Answer 1

Answer:

i think the answer is #3. :)


Related Questions

Refinery EM can produce 22 gallons of gasoline or 18 gallons of flight fuel per barrel of crude oil. Refinery CG can produce 18 gallons of gasoline or 16 gallons of flight fuel per barrel of crude oil. Does OUTPUT vary or does INPUT vary in this problem?

Answers

Answer:

Output varies

Explanation:

Here the outputs of gallons of gasoline and flight fuel is mentioned of two refineries namely Refinery EM and Refinery CG. The output has been mentioned with respect to one barrel of crude oil. So, one barrel of crude is used by both the refineries.

So, here the output (gallons of gasoline and flight fuel) varies while the input (one barrel of crude oil) remains constant.

Which illustration represents low accuracy but high precision?​

Answers

Answer:

D i think

Explanation:

A cow standing atop a building in Times Square recalled a funny joke and began to laugh. The uncontrollable laughter caused the cow to fall over the side of the building. He fell for a time period of 3.5 s and landed in a bed of bushes. How fast was the cow moo-ving when he reached the bushes?

Which equation should be used to solve the problem?

Answers

Answer:

Vf = 34.3 m/s

1st equation of motion was used to solve.

Explanation:

In order to find the final speed of the cow, when it hits the bushes, we can use first equation of motion:

Vf = Vi + gt

where,

Vf = Final Velocity of Cow = ?

Vi = Initial Velocity of Cow = 0 m/s

g = acceleration due to gravity = 9.8 m/s²

t = time taken = 3.5 s

Therefore,

Vf = 0 m/s + (9.8 m/s²)(3.5 s)

Vf = 34.3 m/s

1st equation of motion was used to solve.

5. A helicopter scoops a load of water out of a lake, to dump on a forest fire. The helicopter exerts 6480
N of force on the water while rising high enough to fly over a mountain. If the helicopter does 1.62 x
10%) of work on the water while lifting it, how high does it lift the water.

Answers

Answer:

h = 250 m

Explanation:

Given that,

The helicopter exerts 6480  N of force on the water while rising high enough to fly over a mountain.

The helicopter does [tex]1.62\times 10^6\ J[/tex] of work on the water lifting it.

We need to find how high does it lift the water. Work done is given by :

[tex]W=Fh\\\\h=\dfrac{W}{F}\\\\h=\dfrac{1.62\times 10^6}{6480}\\\\h=250\ m[/tex]

So, it can lift the water to a height of 250 m.

The Total Kinetic Energy of moving particles of matter is called ______ energy?

Answers

Answer: thermal energy

Explanation: hope this helps

Can two spheres of different diameters and different
masses have the same moment of inertia?

Answers

Answer:

NO

Explanation:

I=mr^2 this means moment inertia depends upon mass and square of radius or distance.

At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three different directions. As a result, three forces act on the ball, F1, F2, and F3. The magnitudes of F1 and F2 are F1=50.0N and F2=90.0N. F1 acts under the angle of 60degrees with respect to the x axis and F2 is directed along the x-axis. Find the magnitude and direction of F3 such that the resultant force acting on the ball is zero.

Answers

Answer:

F₃ = 122.88 N

θ₃ = 20.63°

Explanation:

First we find the components of F₁:

For x-component:

F₁ₓ = F₁ Cos θ₁

F₁ₓ = (50 N) Cos 60°

F₁ₓ = 25 N

For y-component:

F₁y = F₁ Sin θ₁

F₁y = (50 N) Sin 60°

F₁y = 43.3 N

Now, for F₂. As, F₂ acts along x-axis. Therefore, its y-component will be zero and its x-xomponent will be equal to the magnitude of force itself:

F₂ₓ = F₂ = 90 N

F₂y = 0 N

Now, for the resultant force on ball to be zero, the sum of x-components of the forces and the sum of the y-component of the forces must also be equal to zero:

F₁ₓ + F₂ₓ + F₃ₓ = 0 N

25 N + 90 N + F₃ₓ = 0 N

F₃ₓ = - 115 N

for y-components:

F₁y + F₂y + F₃y = 0 N

43.3 N + 0 N + F₃y = 0 N

F₃y = - 43.3 N

Now, the magnitude of F₃ can be found as:

F₃ = √F₃ₓ² + F₃y²

F₃ = √[(- 115 N)² + (- 43.3 N)²]

F₃ = 122.88 N

and the direction is given as:

θ₃ = tan⁻¹(F₃y/F₃ₓ) = tan⁻¹(-43.3 N/-115 N)

θ₃ = 20.63°

A sound wave is an example of a __________ wave. It requires a _________ to transfer energy.



Question 3 options:

medium, transverse


transverse, medium


longitudinal , medium


medium, longitudinal

Answers

Answer:

its A

Explanation:

Jacob is riding his bike down a tall hill. At the top of the hill, he has 2800J of potential energy. At the bottom of the hill, when he is going the fastest, his kinetic energy measures 2650J. Which statement below is true? Question 5 options: The total amount of energy at the bottom of the hill cannot equal the amount at the top, because some of the energy is gained. The total amount of energy at the bottom is equal to the amount at the top, but some energy was converted into other forms due to friction. The total amount of energy at the bottom of the hill cannot equal the amount at the top, because some of the energy is destroyed. The total amount of energy at the bottom is equal to the amount at the top, but he gained some energy as he traveled due to a higher speed.

Answers

Answer:

D. The total amount of energy at the bottom is equal to the amount at the top, but he gained some energy as he traveled due to a higher speed.

Explanation:

The total amount of energy at the bottom is equal to the amount at the top, but some energy was converted into other forms due to friction.

Therefore the correct answer is option B.

What is mechanical energy?

The sum of all the energy in motion (total kinetic energy) and all the energy that is stored in the system (total potential energy) is known as mechanical energy.

The expression for total mechanical energy can be given as follows

ME= PE + KE

As given in the problem Jacob is riding his bike down a tall hill. At the top of the hill, he has 2800J of potential energy. At the bottom of the hill, when he is going the fastest, his kinetic energy measures 2650J.

However, some energy was changed into other forms owing to friction, so the total quantity of energy at the bottom is equal to the whole amount at the top.

Thus, option B is the appropriate response,

To learn more about mechanical energy from here, refer to the link;

brainly.com/question/12319302

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if the net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. what is the mass of the encyclopedia

Answers

Answer:

3 kg

Explanation:

F = ma

(15) = m(5)

m = 3 kg

10. Scientists created models that show a rocky asteroid crashing into a moon (less mass) a
planet (more mass). In both crashes, the asteroid was the same mass. Scientists want to kno
happened to the asteroid. Use the information in the diagram to answer.
In which crash did the asteroid experience a stronger force? How do you know?
a
Crash 2; the force on the planet was stronger in this crash, so the force on the astero
also stronger.
There was no force on the asteroid. Only the moon and planet experienced a force in

Answers

Answer:

The diagram doesn’t tell you anything about the force on the asteroid. It only gives information about the force on the planet and the moon.

Explanation:

A complex arrangement of pulleys forms what is called the block in a block and tackle. The rope used to lift the pulleys and the load is the tackle. A block and tackle is used to lift a truck engine, which has a weight and output force of nearly 8000 N. The input force required to lift this weight using the block and tackle is 400N. What is the mechanical advantage of the block and tackle?

Answers

Answer:

Mechanical advantage = 20

Explanation:

Given:

Output force = 8,000 N

Input force = 400 N

Find:

Mechanical advantage

Computation:

Mechanical advantage = Output force / Input force

Mechanical advantage = 8,000 / 400

Mechanical advantage = 20

PLEASE HELP !
What is the acceleration of a ball that starts at rest and increases in speed
to 20 m/s in 45 seconds? *

Answers

20/45 = 0.4? I’m not sure but I think this is it
20/45 which will be 0.4:))

i need to get magnitude of Ax and Ay, Bx and By. total resultant and direction of resultant

Answers

Angle between vectors=180-45=135°

Now

[tex]\\ \tt\longrightarrow R=\sqrt{A^2+B^2+2ABcos\theta}[/tex]

[tex]\\ \tt\longrightarrow R=\sqrt{92^2+34^2+2(92)(34)cos135}[/tex]

[tex]\\ \tt\longrightarrow R=\sqrt{8464+1156+6256(-0.7)}[/tex]

[tex]\\ \tt\longrightarrow R=\sqrt{9620+4379}[/tex]

[tex]\\ \tt\longrightarrow R=\sqrt{13999}[/tex]

[tex]\\ \tt\longrightarrow R=118.3N[/tex]

PLEASE HELP ASAP
describe how the equations for gravitational force and electrostatic force are similar

Answers

they are both forces ?

Anybody know the acceleration of the box

Answers

It looks like the diagram is telling you that there is a net force of 8 N + 4 N = 12 N pointed to the right. By Newton's second law, the magnitude of the net force F is equal to the mass m times the acceleration a :

F = m a

12 N = (4 kg) a

a = (12 N) / (4 kg)

a = 3 m/s²

Balanced Forces acting on an object will not change the object's motion. Unbalanced Forces acting on an object will change the change the object's motion.

Answers

Answer:

TRUE

Explanation:

The answer is true.

Balance forces acting on a body will not change the motion of the body because the body experiences no net resultant force in one direction. When any body experiences equal forces with opposite directions, the net force or the resultant force experience by the body is zero.

In case of an unbalanced forces, there is a net force acting in one direction and so it causes the body to change in its state of motion in the direction of the net force.

The UFP and LFP of a faulty Thermometer are 110 deg. C and -5 deg. C respectively. If this thermometer is used to measure the temperature of the liquid whose actual temperature is 50 deg. C, reading on the thermometer will be:

62.5 deg. C
57.5 deg. C
52.5 deg. C
42.5 deg. C

Answers

62is your answer to the question

Albert Bandura’s theory, originally called social learning theory, is now referred to as __________, and it suggests cognitive processes play a role in influencing one’s personality.

Answers

Answer:

social cognitive theory

Explanation:

Albert Bandura's theory, originally called social learning theory, is now referred to as social cognitive theory, and it suggests cognitive processes play a role in influencing one's personality.

Albert Bandura's theory, originally called social learning theory, is now referred to as social cognitive theory, and it suggests cognitive processes play a role in influencing one's personality.

What are cognitive processes?

Cognitive processes refer to the mental processes involved in perception, attention, memory, reasoning, problem-solving, and decision-making. They involve the use of knowledge, experience, and understanding to process information and make sense of the world around us.

Here, examples of cognitive processes include perception, attention, memory, language processing, and executive functions such as planning and decision-making. Cognitive processes are essential for learning, problem-solving, and adaptive behavior, and they are an important focus of study in psychology and cognitive science.

Albert Bandura's theory, originally called social learning theory, is now referred to as social cognitive theory, and it suggests cognitive processes play a role in influencing one's personality.

Learn more about cognitive processes here:

https://brainly.com/question/2416674

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Susie Small finds she weighs 300 N.
Calculate her mass.

Answers

Answer:

30Kg

Explanation:

Weight = mass x gravitational field strength

300 = mass x 10

mass = 30kg

gravitational field strength is 9.8 on earth but normally we take it to be 10 for easy reference and calculations

The mass will be "30 kg". A further solution is provided below.

According to the question,

Weight,

300 N

We know that,

Gravitational field strength,

10

The mass will be:

→ [tex]Weight = Mass\times Gravitational \ field \ strength[/tex]

or,

→ [tex]Mass = \frac{Weight}{Gravitational \ field \ strength}[/tex]

By putting the values, we get

→           [tex]= \frac{300}{10}[/tex]    

→           [tex]= 30 \ kg[/tex]

Thus the above solution is right.

Learn more about mass here:

https://brainly.com/question/20353971

If the white car experiences a change in momentum equal to 105,000 kg*m/s and is in contact with the red car for 5 seconds before coming to rest, how much force, in Newtons, does the white car experience during the collision?

Answers

Answer:

21000 N

Explanation:

From the question given above, the following data were obtained:

Change in momentum = 105000 kg.m/s

Time = 5s

Force =?

Force is related to momentum and time according to the following formula:

Force = Change in momentum / time

With the above formula, we can calculate the force the white car experience during the collision. This can be obtained as illustrated below:

Change in momentum = 105000 kg.m/s

Time = 5s

Force =?

Force = Change in momentum / time

Force = 105000 / 5

Force = 21000 N

Thus, the white car experience a force of 21000 N during the collision.

can you please help me?

Answers

Answer:

Iron, You're Welcome :)

Answer:

iron

Explanation:

answer all please!!!!!!!!!!✌​

Answers

Answer:

koj ruam zog

Explanation:

Answer:

the answer of 7th question

Make sure your dishwasher is full before you use it – running a half-empty dishwasher wastes large amounts of energy

Try to use a cooler temperature

Consider drying your clothes outside if it’s warm instead of using the dryer

Turn off the fan when you leave a room

Close your drapes or drop your window shades during the day.

Wash your clothes in cold water.

Wrap or cover foods and drinks in the refrigerator.

Always use the cold water faucet, unless you really want hot water.

the answer of 10th question

Static electricity is used in pollution control by applying a static charge to dirt particles in the air and then collecting those charged particles on a plate or collector of the opposite electrical charge. These devices are commonly known as “electrostatic precipitators.

Atmospheric pressure decreases with increment in height.
give reason​

Answers

Answer:

pressure=height × density×acc due to gravity

so

pressire is directly proportional to height hence it decreses with decrease in height

here air column height is measured upside down so decreases witn increment

Answer:

this is because as the altitude increases the number of air molecules decreases

Use the following v-t graph to answer the next questions
5
B
Velocity )
neters/second(s)
4
A
3
2
1
Time (1)
0
1
2
3
4
5
2
8
10
11
12
13
1015
16
second(s)
.1
D
-2
C С
3
5

Answers

Answer:

mag aral ka bubu

Explanation:

ang tanga mu hahahahhaha luko nandyan lang naman yan hahahhahahahahahahhahahahahahahahhahahahahahaahahahahahahahhahahahahahahahahahahahahaahhahahaahahhaahha09561782

starting from rest, a car accelerates to 45 m/s in 1 minute. what is the average acceleration of the car in m/s^2 ?

Answers

Answer:

given us,

initial velocity (u)= 45m/s

time(t)= 1 min

final velocity (v)=?

here,

average acceleration = v-u/t

= v- 45/1

v= 45/1

:. v=45m/s

:. the average acceleration of the car in m/s^2 is 45m/s

Explanation:

we can use acceleration formula

Name 2 fundamental units of SI system except that of MKS system.​

Answers

The others are:

Ampere

Mol

Candela

Answer:

Ampare mole candela

hope it is helpful to you

A cross- country skier moves from location A to location B to location C to location D. Each leg of the back and forth motion takes 1 minute to complete; the total time is 3 minutes . Wes =0 min t - 2min t = 3mim t = 1min 100 What is the distance travelled by the skier in the first 3 minutes? What is the net displacement of the skier in the first 3 minutes? - What is the displacement during the second minute? What is the displacement during the third minute?

Answers

Answer:

hello some parts of your question is missing attached below is the missing part

Answer :

a) 360 m

b) 120 m  ( eastward )

c) -120 m ( westward )

d) 80 m  ( eastward )

Explanation:

given data:

Each leg time = 1 minute

Total time = 3 minutes

t=0        t= 2            t = 3             t = 1

xo =0     x2 = 40     x3 = 120       x1 = 160

a) Distance travelled by skier in first 3 minutes

d = | x1 - xo | + | x2 - x1 | + | x3 - x2 |

    = 160 + 120 + 80 = 360 m

b) net displacement in first 3 minutes

s = ( x1 -x0 ) + ( x2 - x1 ) + ( x3 -x2 )

  = 120 m  ( eastward )

c) displacement during the second minute

s1 = x2 - x1  = 40 - 160  = -120 m ( westward )

d) displacement during the third minute

s2 = x3 - x2 = 120 - 40 = 80 m  ( eastward )

(a) The distance traveled by the skier in the first 3 minutes is 360.

(b) The displacement of the skier during the second minute is 120 west.

(c) The displacement of the skier during the third minute is 80 east.

The given parameters;

distance traveled in 1 min = 160 distance traveled in  2 min = 20distance traveled in 3 min = 120

The distance traveled by the skier in the first 3 minutes is calculated as follows;

[tex]x = (120 - 40) + 120 + 160\\\\x = 360[/tex]

The displacement of the skier during the second minute is calculated as follows;

[tex]x= (x_2 - x_1)\\\\x = 40 - 160\\\\x = -120 \ \\\\x = 120 \ west[/tex]

The displacement of the skier during the third minute is calculated as follows;

[tex]x = (x_3 - x_2)\\\\x = 120 - 40\\\\x = 80 \ east[/tex]

"Your question is not complete, it seems to be missing the following information"

Learn more about distance and displacement here: https://brainly.com/question/17345815

Any one please give me the correct answer of this question???
I hope you can help me...

Answers

Answer:

no one ever amswers my questions

Question 4 (point)
What is the charge of the nucleus for the atom below?
O a
varies
Positive
Oc
Od
Neutral
Negative

Answers

Answer:

Positive

Explanation:

Tbh I dont have an explanation I just wanted to give the answer but its for sure correct!

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