small particles with a mass of 0.10 kg are allowed to fall from a height of 1.6 m before colliding with the pan of a balance. the collisions occur at 441 particles/min, what will the balance register if the collisions of the particles are perfectly elastic?

Answer:

Option B. 126 cm.

Explanation:

From the question given above,

The scale = 1 : 42.

Height of the real door =...?

The scale for the tree house project is

1 : 42. This implies that for every 1 cm on paper, it represents 42 cm on land.

Now, if the height of the door on paper is 3 cm, then the height of the door on land = 3 × 42 = 126 cm on land.

Therefore, the real tree house door is 126 cm tall.

The process of selecting the optimal action to take from a multitude of possibilities can be characterized as decision making.

Meaning of making decisions:

The basic goal of managerial economics is decision-making. The process of choosing the best course of action from among multiple alternatives can be referred to as decision-making. Whenever there are numerous options, decision-making becomes a challenge.

Decision Making and Economics

Well, making decisions affects everyone's life; they are not just for executives or the corporate sector. Whether a person is employed or jobless, making decisions is important to everyone. Regardless of the work you are now doing, a choice needs to be made. You have several choices to make as a participant.

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Answer:

20 m/s

Explanation:

Average Speed will equal to total distance over total time. We are given our total distance equal to 180 meters and total time as 9 seconds.

Apply the formula of speed:

\(\displaystyle{v=\dfrac{s}{t}}\)

where v is average speed, s is total distance and t is total time. Therefore:

\(\displaystyle{v=\dfrac{180}{9}}\\\\\displaystyle{v=20 \ \, \sf{m/s}}\)

Hence, the average speed for a soccer ball is 20 m/s.

Answer:

Explanation:

Q=m*c*ΔT

m=50 kG

C=129 j.kg^-1.k^-1

ΔT=323-293=30

now

Q=50*129*30=193500

Answer:

the ebergy

Explanation:

energy does it have if a miving object

Answer:

Electric Current

Explanation:

Answer:

down I think I'm pretty sure

Answer:

21s

Explanation:

Given parameters;

Radius  = 10m

Speed or velocity  = 3m/s

Unknown:

Period  = ?

Solution:

To solve this problem, use the expression:

      v  = \(\frac{2\pi r}{T}\)  

r is the radius

T is the unknown

           Input the parameters and solve for T;

    3  = \(\frac{2 x \pi x 10}{T}\)  

    62.84 = 3T

         T  = 21s

Answer:

Generally, fresh eggs will lie on the bottom of the bowl of water.  Eggs that tilt so that the large end is up are older, and eggs that float are rotten.

Explanation:

The age limit to drink beer is 17 or 18 and up

For the following:

The change in momentum of the body on striking the ground is equal to the initial momentum before firing vertically upward, which is p. Therefore, the answer is (b) p.

The temperature of a body depends upon the average kinetic energy of molecules. Therefore, the answer is (b) speed.

The distance moved by the force is equal to the product of the initial velocity ( V₀) and the time (1 sec) plus half the product of the force (F) and the square of the time (1 sec) divided by the mass (1 kg).

Therefore, the answer is (b) V₀ + F/2.

The total kinetic energy before the explosion is equal to the sum of the kinetic energies of the two pieces after the explosion.

Since the mass and velocity of one of the pieces, calculate its kinetic energy using the formula KE = (1/2)mv².

Therefore, the kinetic energy of the other mass is (b) 32J.

Foams and cotton clothes are used to absorb water because of their (c) capillary action. Capillary action refers to the ability of a substance to draw liquid into its small spaces or pores.

In a spectrum, red color is deviated to a lesser extent than all the other colors because its velocity is (b) less than all the other colors. The speed of light in a medium depends on the refractive index, which is different for different colors. Red light has a lower refractive index compared to other colors, causing it to be deviated to a lesser extent.

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The acceleration will be,

a) 11.00 m/s²

b) 2.75 m/s²

c) 5.50 m/s²

d) 22.00 m/s²

According to Newton's second law, the acceleration of an object is directly proportional to the force applied and inversely proportional to its mass. Therefore,

If the force is doubled, the acceleration will also double, resulting in an acceleration of 11.00 m/s².

If the object's mass is doubled, the acceleration will be halved, resulting in an acceleration of 2.75 m/s².

If both the force and the object's mass are doubled, the acceleration will remain the same, at 5.50 m/s².

If the force is doubled and the object's mass is halved, the acceleration will be quadrupled, resulting in an acceleration of 22.00 m/s².

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--The complete question is, A constant force is applied to an object, causing the object to accelerate at 5.50 m/s2 . What will the acceleration be if

a) The force is doubled?

b) The object's mass is doubled?

c) The force and the object's mass are both doubled?

d) The force is doubled and the object's mass is halved?--

Answer:

four times the

Explanation:

...........

Aswer:

False, the values ​​of the distance traveled and the displacement only coincide when the trayectorie is a straight line. Otherwise, the distance will always be greater than the offset.

Although these terms are used synonymously in other cases, they are totally different. Since the distance that a mobile travels is the equivalent of the length of its trajectory. Whereas, the displacement will be a vector magnitude.

xXCherryCakeXx.

The centripetal force is the gravitational force of attraction between the Earth and the Moon.

Also, the gravitational force of attraction between the Earth and the Sun is the centripetal force that causes the Earth to stay in orbit around the Sun.

Also, the gravitational force of attraction between a TV satellite, a weather satellite, or a GPS satellite and the Earth is the centripetal force that causes each satellite to stay in orbit around the Earth.

The limiting reactant is the material that is in the shortest supply and will run out first, thus limiting the production of the bicycle. To determine the limiting reactant, we need to calculate how many bicycles we can make with each material:

a. With 5 frames, we can make a maximum of 5 bicycles.
b. With 10 seats, we can make a maximum of 10 bicycles.
c. With 16 wheels, we can make a maximum of 8 bicycles (since each bicycle requires 2 wheels).
d. With 20 pedals, we can make a maximum of 10 bicycles (since each bicycle requires 2 pedals).

Therefore, the limiting reactant is c. 16 wheels, as we can only make a maximum of 8 bicycles with this amount of wheels, even though we have enough of all the other materials to make 10 bicycles.

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The peak electric field strength of the laser light can be calculated using the formula:

E_ peak = sqrt(2 * P / (epsilon * c * A))

where P is the energy of each pulse, epsilon is the permittivity of free space, c is the speed of light, and A is the area of the circle at the focus point.

Plugging in the given values, we get:

E_ peak = sqrt(2 * 5.0 mJ / (8.85 x 10^-12 F/m * 3.00 x 10^8 m/s * pi * (0.85 mm/2)^2))

E_ peak = 4.31 x 10^8 N/C

Therefore, the peak electric field strength of the laser light at the focus point is 4.31 x 10^8 N/C (to three significant figures).

Part B:

The peak magnetic field strength of the laser light can be calculated using the formula:

B_ peak = E_ peak / c

where E_ peak is the peak electric field strength and c is the speed of light.

Plugging in the value of E_ peak from part A, we get:

B_ peak = 4.31 x 10^8 N/C / 3.00 x 10^8 m/s

B_ peak = 1.44 T

Therefore, the peak magnetic field strength of the laser light at the focus point is 1.44 T (to three significant figures).

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The average acceleration of a train traveling at 80.0 km/h due west has an average speed of 10.0 km/h due east. Its speed is 65.0 km/h, due west, an hour and a half later.

The change in speed for a specific interval is what is meant when talking about average acceleration. The average acceleration, as opposed to acceleration, is determined for a specific interval.

Meters / second square (ms2) (m s 2) is the Si derived unit for acceleration. Formula for Median Acceleration The difference between the final and initial velocities, multiplied by the change in time, is the equation for average acceleration (a). A

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Answer:

C

Explanation:

There is a decrease in temperature and daylight and plants produce less food.

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Answer:

Net displacement = 3.2 m

Explanation:

Given:

Mass of man = 80 kg

Mass of trolley = 320 kg

Speed = 1 m/s

Time = 4 sec

Computation:

Displacement by man = 1 m/s × 4 sec

Displacement by man = 4 m

Net ext force (trolley) = com at rest

So,

320 × X = 80(4 - X)

32X = 32 - 8X

40X = 32

X = 0.8 m

Net displacement = 4 m - 0.8 m

Net displacement = 3.2 m

Answer:

3) 3.2 m

Explanation:

The computation of the displacement relative to the ground after 4 seconds is shown below:

Let us assume the following

Starting x coordinate is at the origin

As it does not involve any external force so x coordinated would remain unchanged

Now the separation between the man and the trolley is

\(= 4 \times 1\)

= 4 m

And, we assume the displacement of man be x

So, for trolley it would be (4 -x)

Now we develop the equation which is

\(80 \times x = 320 \times (4 - x)\)

x = 16 - 4x

Therefore x = 3.2 m

Answer:

Energy cannot be created or destroyed (it can only change forms).

Explanation:

This is the definition of the law of conservation of energy.

Answer:

The lower mantle is the liquid inner layer of the earth from 400 to 1,800 miles below the surface.

Explanation:

1) The missing properties are \(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\) and \(h = 640.59\,\frac{kJ}{kg}\). (Subcooled liquid)

2) The missing properties are \(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\) and \(x = 0.394\). (Liquid-gas mix)

3) The missing properties are \(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\) and \(u = 3251.7\,\frac{kJ}{kg}\). (Superheated steam)

4) The missing properties are \(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\) and \(x = 2.988\times 10^{-3}\). (Solid-gas mix)

In this question we must determine the phase associated to the given pressure (\(p\)), in kilopascals, temperature (\(T\)), in degrees Celsius, specific volume (\(\nu\)), in cubic meters per kilogram, internal energy (\(u\)), in kilojoules per kilogram, enthalpy (\(h\)), in kilojoules per kilogram, or quality (\(x\)), no unit.

By steam tables we know that saturation temperature associated with pressure is 151.83 °C, which means that water is a subcooled liquid and quality does not apply herein.

The missing properties are summarized below:

\(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\), \(h = 640.59\,\frac{kJ}{kg}\)

The missing properties are \(\nu = 0.001093\,\frac{m^{3}}{kg}\), \(u = 639.54\,\frac{kJ}{kg}\) and \(h = 640.59\,\frac{kJ}{kg}\). (Subcooled liquid) \(\blacksquare\)

By steam tables we know that water is a mix of gaseous and liquid phases. Hence, the missing properties are summarized below:

\(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\), \(x = 0.394\)

The missing properties are \(T = 263.94\,^{\circ}C\), \(\nu = 0.0163\,\frac{m^{3}}{kg}\), \(u = 1719\,\frac{kJ}{kg}\) and \(x = 0.394\). (Liquid-gas mix) \(\blacksquare\)

By steam tables we know that water is a superheated steam. Hence, missing properties are summarized below:

\(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\), \(u = 3251.7\,\frac{kJ}{kg}\)

The missing properties are \(T = 422.825\,^{\circ}C\), \(\nu =0.0603\,\frac{m^{3}}{kg}\) and \(u = 3251.7\,\frac{kJ}{kg}\). (Superheated steam) \(\blacksquare\)

By ice tables we know that properties correspond to a mix of solid and gaseous phases. Thus, missing properties are summarized below:

\(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\), \(x = 2.988\times 10^{-3}\)

The missing properties are \(P = 0.36873\,kPa\), \(u = -337.836\,\frac{kJ}{kg}\), \(h = -337.458\,\frac{kJ}{kg}\) and \(x = 2.988\times 10^{-3}\). (Solid-gas mix) \(\blacksquare\)

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Applying a net force of 10.0 N for 0.5 m/s will produce the greatest change of momentum for a 1.0-kilogram cart.

The situation that produces the greatest change of momentum for a 1.0-kilogram cart is (D) applying a net force of 10.0 N for 0.5 m/s. This option results in the greatest change in momentum as it involves the greatest impulse. Impulse is the product of force and time or the change in momentum of an object. The impulse can be calculated using the formulaImpulse (J) = force (F) x time (t)or J = FtWhen a force is applied to an object, it creates a change in momentum. The greater the force or the longer the time of application of the force, the greater the change in momentum. A net force of 10.0 N is applied for 0.5 s. Therefore, the impulse generated is given by J = (10.0 N) x (0.5 s) = 5.0 Ns.Due to the impulse, the velocity of the cart will change from its initial velocity. As momentum is conserved, the change in momentum of the cart will be equal to the impulse applied to it.

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The mass and weight of object on moon is 0.0138kg  and 0.0229kg .

Since force is a vector quantity, we must consider the direction in which it acts. There are two main types of frictional force: static force (Fst) and sliding force (Fsl). Normal forces (FN) produce these forces acting perpendicular to the direction of motion, although they act in the opposite direction to the object's motion.

It is equivalent to the weight of the object plus the extra weight. For example, pushing down on a block of wood on a table increases the normal force and thus the frictional force.

me=12Kg

ge=10

gm=10/6= 1.66

M=?

me ge =M gm

M=me ge/gm

M=120/1.66

M=0.0138kg

W=mg =0.0138 x 10kg

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