Calculate the velocity of the objects motion represented in the following graph. Show all your work.

Pleaseeeee?????? I need help!!!!!!!!

Answer:

1. d. transverse waves

2. False

3. True

Answer:

1.4

Explanation:

Answer:

F = 1015 N

Explanation:

Given that,

Mass of a ball, m = 0.145 kg

Initial speed, u = 20 m/s

Final speed, v = -15 m/s (as it moves in opposite direction)

The ball and bat were in contact for 5 ms

We need to find the force the bat applies to the bat. We know that,

F = ma

[tex]F=\dfrac{m(v-u)}{t}\\\\F=\dfrac{0.145\times (-15-20)}{5\times 10^{-3}}\\\\F=-1015\ N[/tex]

So, the bat will apply 1015 N force to the ball.

Answer:

20&£+)##&843&()-_££-()&_2+0&&-£_!)

Answer:

Explanation:

In addition to the 'daughter' products, two or three neutrons also explode out of the fission reaction and these can then collide with other uranium nuclei which are unstable so these cause further fission reactions. This is known as a chain reaction .

Hope this helps

Answer:

[tex]A_2=0.74\ m^2[/tex]

Explanation:

Given that,

Weight, F₁ = 15,000 N

Area, A₁ = 10 m²

Weight, F₂ = 1100 N

We need to find the area of the small piston. The pressure exerted on both piston will be equal such that,

[tex]\dfrac{F_1}{A_1}=\dfrac{F_2}{A_2}\\\\A_2=\dfrac{F_2A_1}{F_1}\\\\A_2=\dfrac{1100\times 10}{15000}\\\\A_2=0.74\ m^2[/tex]

So, the area of the smaller piston is [tex]0.74\ m^2[/tex].

Answer:

Force = 2.4  10^(-17) N

Explanation:

Recall that if you have the field, the force is easily obtained by multiplying E times the charge:

F = E * q = 150 * 1.6  10^(-19)  N = 240  * 10^(-19) N = 2.4  10^(-17) N

which agrees with answer C in your list of possible answers.

Correct question:

You have a transformer with 50 turns in the primary coil if you want to increase the voltage from 5V to 6V how many turns should be in the secondary coil ?

Answer:

the number of turns in the secondary coil is 60 turns.

Explanation:

Given;

number of turns in the primary coil, P = 50 turns

primary voltage, Ep = 5V

secondary voltage, Es = 6V

The number of turns in the secondary coil is calculated as;

[tex]\frac{N_s}{N_p} = \frac{E_s}{E_p} \\\\\frac{N_s}{50} = \frac{6}{5} \\\\N_s = \frac{50\times 6}{5} \\\\N_s = 60 \ turns[/tex]

Therefore, the number of turns in the secondary coil is 60 turns.

Answer:

1 mol of any compound (including of course CO2 and O2) contains 6.022*10^23 molecules  

Therefore 0.5 mol of CO2 and O2 contains 3.01*10^23 molecules of each.

Explanation:

the answerer is visible

Genetic material is known to absorb UV light. Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.

Genetic material is the hereditary substance in the cell. It carries all information specific to an organism. It is known as DNA (deoxyribonucleic acid) or RNA (ribonucleic acid)

UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.

Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.

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Answer:.05 kg*m over s

Explanation:did the work

Answer:

The description of the frame of reference is characterized below.

Explanation:

Answer:

the DTS triangle

Explanation:

DTS stands for distance, time, and speed, which you can use to calculate any of the three if you have the other two.

Answer:

PE = 11.25 J

Explanation:

Elastic Potential Energy

It's the energy stored in an elastic material like a spring of constant k, in which case the energy is proportional to the square of the change of length Δx and the constant k.

[tex]\displaystyle PE = \frac{1}{2}k(\Delta x)^2[/tex]

The car spring has a constant of k=90 N/m and it stretches Δx=0.5 m. The elastic potential energy is:

[tex]\displaystyle PE = \frac{1}{2}\ 90(0.5)^2[/tex]

Calculating:

PE = 11.25 J

Elastic potential energy is the potential energy held when an elastic item is stretched or compressed by an external force. The elastic potential energy of a car spring will be 11.25 J.

Elastic potential energy is the potential energy held when an elastic item is stretched or compressed by an external force. It is equal to the work done to extend the spring.

The given data in the problem is;

x is the distance by which spring got stretched = 0.5 m

k is the spring constant for the car =  90 N/m.

The formula for the elastic potential energy is;

[tex]\rm PE =\frac{1}{2} kx^{2} \\\\ \rm PE =\frac{1}{2} \times 90 (0.5)^{2} \\\\ \rm PE = 11.25\; J[/tex]

Hence the elastic potential energy of a car spring will be 11.25 J.

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Answer:

The answer is 35.

Explanation:

We use the formula F=ma

Answer:

Explanation:

10

Answer:

PLEASE BE MORE SPECIFIC

Explanation:

The pathfinder is currently 3.4 m away from its initial position. Speed can be defined by the change in position of the object over time.

What is Speed?

It can be defined by the change in position of the object over time. The distance can be calculated by the formula,

[tex]d = s \times t[/tex]

Where,

[tex]d[/tex]- distance

[tex]s[/tex] - speed

[tex]t[/tex] - times -

Initially, Pathfinder moves,

[tex]d = 0.2 \times 20 \\\\d = 4 \rm \ m[/tex]

Then he turns back and moves,

[tex]d' = 0.2 \times 3 = 0.6 \rm m[/tex]

So the current position is:

[tex]D = d - d'\\\\D = 4 - 0.6 \\\\D = 3.4\rm m[/tex]

Therefore, the pathfinder is currently 3.4 m away from its initial position.

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Simple cells have liquid chemicals, making it harder for it to carry. While as dry cells have no liquid chemicals, making it easier to carry.

Answer:

C.

Explanation:

Answer:

The tourist's average speed was 80 mph

Explanation:

Average Speed

If an object travels a distance d in a time t regardless of the direction, the average speed is the quotient of the distance over the time:

[tex]\displaystyle v=\frac{d}{t}[/tex]

The tourist leaves Pittsburgh and travels 60 miles South in 45 minutes. Then he heads West and travels 100 miles in 1 hour and 15 minutes.

The total distance traveled is:

d = 60 miles + 100 miles = 160 miles

The total time is:

t = 45 minutes + 1 hour + 15 minutes = 2 hours

The average speed is:

[tex]\displaystyle v=\frac{160}{2}[/tex]

v = 80 mph

The tourist's average speed was 80 mph

Answer:

Hmm

Explanation:

Answer:

Are antioxidant-rich skincare products as effective as they say they are? Best Health checked the science behind the claims.

Rusting iron and the browning flesh of an avocado both have something in common with the discoloration, wrinkles and fine lines of our aging skin: oxidation. Antioxidants counter this natural aging process, and that’s why they have been taking top billing in skin care.

Explanation:

The man's resultant velocity is

8.5 m/s up .

Answer:

Potential energy is the stored energy of position possessed by an object. In the above equation, m represents the mass of the object, h represents the height of the object and g represents the gravitational field strength (9.8 N/kg on Earth) - sometimes referred to as the acceleration of gravity.

Explanation:

Answer:

h = 10 m

Explanation:

Given that,

Mass of an object, m = 20 kg

It strikes the ground with 1960 J of kinetic energy after falling freely from rest.

We need to find how far above the ground was the object when it was released. Let it is h.

The kinetic energy is converted to potential energy. It can be given by the relation as follows :

[tex]E=mgh\\\\h=\dfrac{E}{mg}\\\\h=\dfrac{1960}{20\times 9.8}\\\\h=10\ m[/tex]

So, it was at a height of 10 m when it was released.

Answer:

b. The force is 6 times the original

Explanation:

Coulomb's Law

The electrostatic force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between the two objects.

Written as a formula:

[tex]\displaystyle F=k\frac{q_1q_2}{d^2}[/tex]

Where:

[tex]k=9\cdot 10^9\ N.m^2/c^2[/tex]

q1, q2 = the objects' charge

d= The distance between the objects

Suppose one of the charges is doubled, i.e., q1=2q1 and the other charge is tripled (q2'=3q2). The new force F' would be:

[tex]\displaystyle F'=k\frac{(2q_1)(3q_2)}{d^2}[/tex]

Operating:

[tex]\displaystyle F'=k\frac{6q_1q_2}{d^2}[/tex]

[tex]\displaystyle F'=6\cdot k\frac{q_1q_2}{d^2}[/tex]

Substituting the original value of the force:

[tex]F'=6\cdot F[/tex]

b. The force is 6 times the original

The electrostatic force between two electric charges will change by 18 times the original force if one charge is doubled and the second charge is tripled. Option c. is correct .

Coulomb's law is a basic principle of electromagnetism that describes how the electric charge exerts force on other charges. The force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. When one charge is doubled and the other is tripled, the force between the two will be 18 times the original force. The electrostatic force between two electric charges is directly proportional to the product of the charges.

Therefore, when one charge is doubled and the second charge is tripled, the electrostatic force will be 18 times the original. Thus, the correct option is c. 18 times the original force.

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Answer:

1.86s  

Explanation:

Given parameters:

Initial velocity  = 1.2m/s

Final velocity  = 6.3m/s

Acceleration  = 2.75m/s²  

Unknown:

Time it takes for the child to accelerate the car  = ?

Solution:

Acceleration is the rate of change of velocity with time.

   a   = [tex]\frac{v - u}{t}[/tex]  

a is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

               2.75  = [tex]\frac{6.3 - 1.2}{t}[/tex]  

                 5.1 = 2.75t

                 t  = 1.86s  

Answer:

1.0 x 10^-3 m

Explanation:

1mm = (1/1000) m = 0.001m = 1.0 x 10^-3m (because to get 1.0, you have to  movi the decimal point in the "0.001" three spots over to the right)

Answer:

9194.4278 seconds

Explanation:

Orbital period is given by :

T² = (4π²r³) /GM

G = Gravitational constant = 6.67 * 10^-11

M = 5.9801 * 10^24 kg

r = (3.110 * 10^6 m + 6378000 m) =3110000 + 6378000 = 9488000 m

T² = (4π² * 9488000^3) / (6.67* 10^-11 * 5.9801*10^24)

T² = 3.37197 * 10^22 / 398872670000000

T² = 84537504.161415

T = sqrt(84537504.161415)

T = 9194.4278 seconds

Answer:

294.68

Explanation:

I hope you right answer

The velocity of light travelling in that medium = v= 107.9 m/s

It is a ratio of the velocity of light in vacuum to velocity of light in a specific medium

given

refractive index of material( u) : 2.78 * 10 ^6

c = 3* 10 ^8 m/s

velocity of light travelling in that medium(v) = ?

u = speed of light / v

v = speed of light / u

v= 3* 10 ^8 / 2.78 * 10 ^6

v= 107.9 m/s

velocity of light travelling in that medium = v= 107.9 m/s

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