Two balls of equal mass, moving with & speed of 3.0 m/s, collide head on Find the velocity of each after impact for each of the following situations They have an inelastic (stick) collision. They have perfectly elastic collision (KE conserved)

Answer:

The answer is A) byee!!

Explanation:

To determine the threshold force you need to use the formula F=μsN, where F is the force, μs is the coefficient of static friction, and N is the normal force.

First, calculate the normal force by multiplying the mass of the upper block by the acceleration due to gravity. This will give you the force that is pushing the upper block down onto the lower block.

Next, multiply the coefficient of static friction by the normal force to get the threshold force. This is the minimum amount of force that you need to apply to the lower block in order to overcome the friction between the two blocks and get the upper block to start sliding.

So, the threshold force that you need to pull the lower mass with in order for the upper mass to start sliding relative to the lower mass is given by:

F=μsN

Where F is the threshold force, μs is the coefficient of static friction, and N is the normal force.

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Field forces, such as gravitational, electric, and magnetic ones, can have an impact on a wide variety of objects and act over great distances.

Gravitation, electromagnetic forces, the strong and weak forces found in atoms, and these four types of field forces are all present in the universe. The universe's four most fundamental forces are these four.

Due to the fact that gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, greater separation distance will result in weaker gravitational forces. The gravitational attraction between two objects therefore weakens as they are moved apart from one another.

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The disinfecting the water by killing or Magnetism microorganisms such as bacteria or viruses. Chlorination is a common method used in potable water treatment plants to ensure the safety of drinking water.
Correct answer: Disinfection

Chlorine is added to water in a controlled amount to kill harmful microorganisms that can cause waterborne diseases. The disinfection process involves adding chlorine to the water, allowing sufficient contact time, and then neutralizing the excess chlorine before distribution. This process ensures that the water is safe to drink and free from harmful bacteria and viruses.

The use of chlorine in water treatment is effective in killing or inactivating a broad range of microorganisms, including bacteria, viruses, and parasites. It is a reliable and cost-effective method of disinfecting water to make it safe for consumption. However, it is important to monitor the chlorine levels in the water to ensure that it is safe for human consumption and does not pose any health risks.
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The puppy was not moving relative to Daylon, the wagon, or his collar.

He was moving relative to a point on the sidewalk.

Note that the puppy did NOT get his walk.

The net force acting on test charge is resultant of two force i.e.,  √2 F

The magnitude of force on test charge due to one charge Q is:

                F = k qQ / r²

where k = 9 × 10^9

Similarly the force due to second charge will be:

         F = k qQ / r²

Now both the charges of magnitude Q is present and it is pointed at right angle to each other then the force  will be resultant i.e.,

                    F = √ F² + F² = F√2

 Hence, net force acting on test charge is √2 F.

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The average acceleration of the jetliner during landing can be calculated using the formula:

average acceleration = (final velocity - initial velocity) / time

Initial velocity (u) = 69 m/s (northward)

Final velocity (v) = 5.1 m/s (northward)

Distance (d) = 750 m

First, we need to find the time taken (t) using the formula:

t = d / average speed

Average speed = (initial velocity + final velocity) / 2

Average speed = (69 m/s + 5.1 m/s) / 2 = 37.05 m/s

t = 750 m / 37.05 m/s = 20.26 s

Now we can calculate the average acceleration:

average acceleration = (v - u) / t

= (5.1 m/s - 69 m/s) / 20.26 s

≈ -3.469 m/s² (southward)

The average acceleration of the jetliner during landing is approximately -3.469 m/s² in the southward direction. This is calculated using the initial velocity of 69 m/s (northward), final velocity of 5.1 m/s (northward), and a distance of 750 m.

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The major characteristic an organic compound has which an inorganic

compound doesn't  have is the presence of carbon atoms in the molecule.

This helps us to differentiate the compounds into their respective divisions.

Inorganic compounds

Organic compounds

We can observe that inorganic compounds lack carbon atoms which makes

the answer valid.

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Answer:

B and E because yk thats the asnwer

Answer:

Explanation:add them then divide them by 100 I think

The brass pendulum will lose or gain approximately 0.0015 seconds per day when the temperature of its surroundings rises from 10°C to 35°C

The time period of a pendulum is given by the formula:

T = 2π√(L/g)

where T is the time period, L is the length of the pendulum, and g is the acceleration due to gravity.

Since both pendulums have the same length and are located in the same gravitational field, their time periods are equal. Therefore, the time gained or lost by the brass pendulum due to the change in temperature can be calculated using the following formula:

ΔT = T × α × ΔT

where ΔT is the change in temperature, α is the coefficient of linear expansion of brass, and T is the original time period.

The coefficient of linear expansion of brass is approximately 19 × 10^-6 /°C.

Substituting the values given in the problem, we get:

ΔT = T × α × ΔT

= (2π√(L/g)) × (19 × 10^-6 /°C) × (35 - 10) °C

= 2π√(L/g) × (0.000019) × (25) °C

= 2π√(L/g) × 0.000475

Assuming a standard pendulum length of 1 meter, the time gained or lost by the brass pendulum can be calculated as follows:

ΔT = 2π√(L/g) × 0.000475

= 2π√(1/9.81) × 0.000475

≈ 0.0015 seconds

Therefore, the brass pendulum will lose or gain approximately 0.0015 seconds per day when the temperature of its surroundings rises from 10°C to 35°C.

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Answer:

Horizontal = 19.99212 m/s     Vertical = 15.0151 m/s

Explanation:

Horizontal = Cos(36.9) x 25

Vertical = Sin(36.9) x 25

Answer:

a skipping

Explanation:

this is for brainly

Power walking is much easier on the body and is the same fitness as running, so option c is correct.

Humans and other animals may move quickly on foot by using the terrestrial locomotion technique known as running. All the feet are raised above the ground during the aerial phase of running (though there are exceptions). While walking, the center of gravity always vaults over the stance leg or legs in an inverted pendulum motion, the legs are mostly kept straight, and one foot is constantly in touch with the ground.

When you power walk then the heartbeats increase, and you can maintain it for a longer time, therefore, a power walk is more efficient for weight loss or fat loss than running.

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A. Controlled Variable.

I hope this helps!

Given the relationship between the physical quantities v, i, r, l, and d, if the unit of r is written as "ohm" (Ω), the values of p, q, and r can be determined. The value of p corresponds to resistance (R), q represents length (l), and r is the unknown quantity (R).

The given relationship between the physical quantities can be expressed as v = piqd^2/r. Based on this equation, we can identify the quantities and their corresponding symbols:

v represents voltage or potential difference (in volts, V).

i represents electric current (in amperes, A).

r represents resistance (unknown unit, to be determined).

l represents length (in meters, m).

d represents distance (in meters, m).

If we write the unit of r as "ohm" (Ω), we can equate the unit of resistance (R) with r. Therefore, p corresponds to resistance (R), q represents length (l), and r is the unknown quantity (R).

In summary, if the unit of r is written as "ohm" (Ω), the values of p, q, and r in the given relationship are resistance (R), length (l), and the unknown quantity (R), respectively.

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Answer:

The charge on each end of the wire produces what we call an electric field. The electric field makes negative electrons want to travel towards the positive end of the wire (the end with not enough electrons).

the answer is d because it's going to positive.

is am alright? let me know.

The shark's actual speed through the water is 2.793m/s which is of a 2.5m long shark that appears to be swimming straight toward you at 2.1 m/s.

Given length of shark (L) = 2.5m

The apparent speed of shark  swimming straight toward you (v') = 2.1m/s

We know that refractive index of water (n1) is  = 1.33 and the Refractive index of air is (n12) = 1.00

The ray coming from the shark is diverged outward and refracted away from the norm at the tank's surface as.

The image distance sH of the shark's head from the tank's surface is connected to the image distance s'H, which is defined as s'H = (n2/n1)sH

Now separating s'H with respect to time for the shark's apparent speed : v' = ds'H/dt

v' = d/dt( n2/n1xsH)

v' = n2/n1xdsH/dt = n2/n1xv

v = n1/n2xv' = 1.33/1.00 x 2.1 = 2.793m/s

Hence the shark’s actual speed through the water is 2.7 m/s

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Because of their conical appearance in ground-based photographs, these objects are known as the Orion Nebula and cone nebula.

One of the most closely observed, photographed, and extensively researched astronomical objects is the Orion Nebula. The formation of stars & planetary systems from collapsing gas and dust clouds has been extensively studied by the nebula.

Because it is located in the winter sky's most prominent constellation, Orion the Hunter, the Orion Nebula (M42) has its name. Look below Orion's Belt, where his sword hangs, to locate the nebula. The center star will appear hazy to you because of your eyes alone.

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Answer:

4 m/s East.

Explanation:

Velocity: This cam be defined as the rate of change of displacement. The unit of velocity is m/s.

From the question,

v = d/t...................... Equation 1

Where v = velocity, d = displacement, t = time.

Given: d = 20 m East, t = 5 seconds.

substitute into equation 1

v = 20/5

v = 4 m/s East.

Hence the average velocity = 4 m/s East.

International space station is the mission of NASA. It has launched 134 successful space missions.

International space station is a huge place in the space but in the close orbit with all possible facilities for astronauts , scientists and others

The National Aeronautics and Space Administration (NASA) is an acronym for the National Aeronautics as well as Space Administration. NASA was established as a division of the United States government on October 1, 1958. NASA is just in charge of all research and technology related to aviation and space in the United States.

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The proof of third equation of motion is determined as  v² = 2as + u².

The proof of third equation of motion is determined as follows;

The first equation is given as;

v = u + at

t = ( v - u ) /a

where;

The formula for the average distance traveled by an object is;

s = (v + u)/2  x  t

Expand the equation above as;

s = (v + u)/2 x  (v - u)/a

s = (v² - u²) / 2a

2as = v² - u²

v² = 2as + u², proved

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a. The time taken to reach maximum height is 2.16 s.

b. The total time taken to return to its original level is 4.32 s.

c. The maximum height reached is 22.9 m.

d.  The horizontal distance travelled is 91.6 m.

Given information:

Velocity of ball = 30 ms⁻¹

Angle = 45° = π/4 rad

Gravity = 9.8 ms⁻²

To find:

a. The time taken to reach maximum height

b. The total time taken to return to its original level

c. The maximum height reached

d. The horizontal distance travelled.

a) The time taken to reach maximum height:

The time taken to reach maximum height can be calculated by using the formula as follows:

Time taken, t = (u sin θ) / g

Where,

u = Velocity of ball = 30 ms⁻¹

θ = Angle = 45° = π/4 rad

g = Acceleration due to gravity = 9.8 ms⁻²

Substitute the given values in the above formula:

t = (30 sin (π/4)) / 9.8

t = 2.16 s

b) The total time taken to return to its original level:

The time taken to reach the maximum height is equal to the time taken to return to its original level. Hence,

Total time taken = 2 x time taken to reach maximum height

Total time taken = 2 x 2.16

Total time taken = 4.32 s

c) The maximum height reached:

The maximum height reached can be calculated by using the formula as follows:

H = (u² sin² θ) / 2g

Where,

u = Velocity of ball = 30 ms⁻¹

θ = Angle = 45° = π/4 rad

g = Acceleration due to gravity = 9.8 ms⁻²

Substitute the given values in the above formula:

H = (30² sin² (π/4)) / (2 x 9.8)

H = 22.9 m

d) The horizontal distance travelled:

The horizontal distance travelled can be calculated by using the formula as follows:

D = u cos θ x t

Where,

u = Velocity of ball = 30 ms⁻¹

θ = Angle = 45° = π/4 rad

t = Total time taken = 4.32 s

Substitute the given values in the above formula:

D = 30 cos (π/4) x 4.32

D = 91.6 m

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Answer:

To say we have a 12.0-V battery implies that its terminals have a 12.0-V likely contrast. At the point when such a battery moves charge, it puts the charge through an expected distinction of 12.0 V, and the charge is given an adjustment of potential energy equivalent to Δ U = q Δ V .

six cells

There are six cells to a 12 volt lead corrosive battery. A battery cell's greatest capacity to convey current (amps).

A 6 cell lithium particle pack has an ostensible voltage of 21.6V to 22.2V and a most extreme charge voltage of 25.2 volts

Explanation:

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 6 × 3

We have the final answer as

Hope this helps you

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Answer: 160 km

Explanation:

Answer:

the moving of something from its place or position or the occupation by a submerged body or part of a body of a volume which would otherwise be occupied by a fluid

Explanation:

c:

Answer:

His journey took him 3 hours 15 minutes.

Explanation: 4 miles every hour. So 1 hr is equal to 4 miles, 2 hrs is equal to 8 miles, 3 hrs is equal to 12 miles. Now he just has 1 miles left, and since it takes him a hour to cycle 4 miles, 60 divided by 4 is 15. Therefore, 1 mile is equal to 15 minutes.

Time = (distance) / (speed)

Time = (13 mi) / (4 mi/hr)

Time = 3.25 hr  or  3hr 15min .

The time taken for temperature to fall from  45°C to 35°C is 6.21 minutes when a liquid cools from 65°C to 55°C in 5 mins.

We can utilize Newton's Law of Cooling to tackle this issue. It expresses that the pace of progress of temperature of an article is corresponding to the distinction in temperature between the item and its environmental elements.

Utilizing this regulation, we can compose:

(dT/dt) = - k(T - Ts)

where dT/dt is the pace of progress of temperature, k is the cooling steady, T is the temperature of the fluid, and Ts is the temperature of the environmental elements.

To begin with, how about we track down the cooling steady. From the given data, we know that the fluid cools from 65°C to 55°C in 5 mins. Subsequently, we can compose:

-10 = - k(65 - 35)

k = 0.5

Presently, we can utilize this worth of k to make the opportunity taken for temperature to decrease from 45°C to 35°C. We want to tackle:

(dT/dt) = - 0.5(T - 35)

with introductory condition T(0) = 45.

Isolating factors and coordinating the two sides, we get:

ln|T - 35| = - 0.5t + C

Utilizing the underlying condition T(0) = 45, we get:

ln|10| = C

C = 2.303

Subbing this worth of C, we get:

ln|T - 35| = - 0.5t + 2.303

Taking dramatic on the two sides, we get:

|T - 35| = e^(- 0.5t+2.303)

Settling for T = 35°C, we get:

t = 6.21 minutes.

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The complete question is:

A liquid cools from 65°C to 55°C in 5 mins. If the surrounding temperature is 35℃, calculate the time taken for temperature to fall from 45°C to 35°C.

Answer:

ii) Insulating materials that gain electrons when rubbed become negatively charged. c) An electric current is a flow of charge. d) An isolated metal object that is initially uncharged will gain charge if it is brought into contact with a charged object. e) A metal object is earthed by connecting it to the ground.

Explanation:

hope this helps you :)

The stress exerted on the string as it swings in a horizontal circle is 6.56 Newton. frequency is 1/1.09 = 0.92 Hz, and f is 1. (2L) × √T/m\s0.92 = 1/2(1.4) (1.4) (T)/4 multiply everything by 4 ((T/16) 0.92 = 0.36)

3.68 = 1.44 × √T \s √T = 3.68/1.44 = 2.56 \s T = 2.56² = 6.56

"How much of a quantity" is how the word "magnitude" is defined. The magnitude, for instance, can be used to describe a comparison of the speeds of a car and a bicycle. Additionally, it can be used to describe how far an object has traveled or how much of an object is represented by its magnitude.

The energy released at the earthquake's epicenter is measured in magnitude. Seismograph readings are used to calculate magnitude. The magnitude of the shaking caused by an earthquake is measured by its intensity. The impact on humans is used to gauge intensity.

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