A 934 kg object at rest has what momentum ?

He attained the rank of military officer during the combat on the Western Front in World War I and was once more nominated for a Medal.

The pushing or push on a phalanx item alters its speed. An unseen factor is an agent that possesses the power to change the resting or traveling position of a body. It has a direction as well as a quantity.

Contact forces and non-forces are two different kinds of forces. Nuclear force, gravitational force, frictional force, magnetic force, electrostatic force, spring force, and others are a few examples of forces.

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The distance from the source to the reflector is approximately 171.5 meters when a sound wave leaves its source and is traveling through the air.

To determine the distance from the source to the reflector, we can use the speed of sound in air.

The speed of sound in air is approximately 343 meters per second at room temperature and normal atmospheric conditions.

Since the reflected wave returns 0.5 seconds later, it means that the sound wave traveled twice the distance from the source to the reflector.

Using the formula: Distance = Speed × Time, we can calculate the distance.

Distance = Speed of sound × Time

Distance = 343 m/s × 0.5 s

Distance = 171.5 meters

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Answer: Newton's third law of motion states that for every action, there is an equal and opposite reaction. When a player hits a ball with a bat, the force the player exerted on the ball through the bat gave the ball a push force in the forward direction.

Explanation:

Answer:

The temperature at which a substance boils AND whether a substance floats or sinks in water

Explanation:

i just had this question and got it right with these answers

Matter can be defined or described as anything that takes up space, and it is composed of miniscule particles called atoms. It must display the two properties of mass and volume.

"Insignificant, microscopic, small, tiny, diminutive, minute, unimportant, particles are miniscule particle."

"An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across."

"Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram."

"Matter is any substance that has mass and takes up space by having volume."

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One lens concentrates light from an object 1.35 m away as an image 48.3 cm away on the other side of the lens at a distance of 1.31 m. An optical system's  focal length is a gauge of how powerful it is.

which is the opposite of the optical power of the system, converges or diverges light. A system's focal length is either positive or negative; a positive focal length denotes light convergence. The focal length (f) measures the separation between the lens and the point of focus.

A series of components make up an optical system, including lenses, mirrors, light sources, detectors, projector screens, reflecting prisms, dispersing apparatuses, filters and thin films, and fiber-optic bundles. Are called optical system.

1/f=1/v+1/u

1/f=1/48.3+1/1.35

f=1.31m

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Answer:

It is already balanced

Explanation:

It is already balanced

Main answer- C (matter can be converted into energy)

supporting answer-Nuclear fission is a reaction in which particles or atoms split into two smaller and lighter nuclei, which can then be converted into energy.

final answer -hence final answer is C

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The magnitude of the average induced EMF in the loop (in mv) during this time is 33 mv

Given that a circular loop of aluminum wire in a uniform magnetic field pointing into the page. The loop has a radius (r) of 11 cm which is 0.11 m, the magnitude of the field (B) is 0.16 T, and the time taken to close the loop (t) is 0.18 s.

We need to find the magnitude of the average induced EMF the loop during this time.

The Induced emf in the ring when the area of the ring is reduced to zero is 0.97 mV.

The induced emf in the coil is given by,

E = -ΔФ/ΔT

Where,

Ф is the magnetic flux,

T is the time,

ΔФ = BΔA

B is the magnetic field,

ΔA is the change in area.

The area reduced from 11 x 10⁻⁴cm² x  to 0cm² and The magnetic field is 0.160T and the time taken is 0.180 seconds.

Now, putting all the values,

E = -0.160 x 11 x 10⁻⁴/0.180

E = 0.97 mV.

Hence, the emf induced in the coil in millivolts is 0.97mV.

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Answer:

yeah

Explanation:

The information tells you about the rate of decay is that in Florida the reaction occurs more slowly when there is less oxygen in the air.

The reduction in the number of radionuclides per unit time is the rate of decay.

The following table shows that the rate of decay only depends upon the level of oxygen. In Florida concentration of the oxygen in the air is high

Due to this the decay time is less.

The decay time is inversly propotional to the rate of decay. In Florida the rate of decay is high.

Hence the information is that reaction occurs more slowly when there is less oxygen in the air.

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The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

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Answer:

i think it is a

it may be d tho

Explanation:

let me know in comments what it is

A. Your weight

the weight makes it go down and the result of gravity or (w = m * g

The wires are twisted around each other in a twisted pair cable for the purpose of blocking off any external electromagnetic interference.

A twisted-pair cable is a form of cable system used for telecom services as well as most current wired networks. Twisted pairs are composed of two insulated copper wires that are been twisted together. The circuit is formed by a twisted pair of wires that may carry data. These pairs are twisted to prevent interference or noise caused by neighboring pairs.

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Answer:

477.75cm^2

Explanation:

Area formula is L x W

27.3cm x 17.5cm = 477.75cm^2

Answer:

477.75

Explanation:

multiply one side by the other

Answer: C

Explanation:

A: 100kg*0m/s (obviously not answer)

B: 20kg*2m/s (=40)

C: 5kg*50m/s (=250, safe bet this one is it)

D: 10kg*5m/s (=50)

5 kg at 50 m/s, with a momentum of 250 kg m/s has the most momentum.

Hence, the correct option is C.

To calculate momentum, we use the formula:

Momentum (p) = Mass (m) × Velocity (v)

Let's calculate the momentum for each option:

A. 100 kg at rest

Momentum = 100 kg × 0 m/s = 0 kg m/s

B. 20 kg at 2 m/s

Momentum = 20 kg × 2 m/s = 40 kg m/s

C. 5 kg at 50 m/s

Momentum = 5 kg × 50 m/s = 250 kg m/s

D. 10 kg at 5 m/s

Momentum = 10 kg × 5 m/s = 50 kg m/s

Therefore, 5 kg at 50 m/s, with a momentum of 250 kg m/s has the most momentum.

Hence, the correct option is C.

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Answer:

To find the resulting velocity when the two asteroids stick together, we can use the principle of conservation of momentum.

The initial momentum of the first asteroid before the collision is given by the product of its mass (m1) and its velocity (v1):

Initial momentum of asteroid 1 = m1 * v1

Since the second asteroid is stationary, its initial momentum is zero.

After the collision, the two asteroids stick together and move with a common velocity (v2). The total mass of the system after the collision is the sum of the masses of the two asteroids (m1 + m2).

According to the conservation of momentum, the initial momentum of the system is equal to the final momentum of the system:

Initial momentum = Final momentum

m1 * v1 + 0 = (m1 + m2) * v2

Given:

m1 = m2 = 4723 kg

v1 = initial velocity of the first asteroid (unknown)

v2 = final velocity of the combined asteroids (unknown)

We can substitute these values into the equation and solve for v2:

4723 kg * v1 + 0 = (4723 kg + 4723 kg) * v2

4723 kg * v1 = 9446 kg * v2

Dividing both sides by 9446 kg:

v1 = 2 * v2

Therefore, the initial velocity of the first asteroid (v1) is twice the final velocity of the combined asteroids (v2).

Since the initial velocity of the first asteroid is not given, we cannot determine the resulting velocity (v2) without additional information.

the maximum height of the ball is 464 feet.If a ball is thrown vertically upward from the top of a building 128 feet tall with an initial velocity of 112 feet per second.

Assuming no air resistance, the distance s (in feet) of the ball from the ground after t seconds can be modeled by the equation:

\(s(t) = -16t^2 + 112t + 128\)

where \(-16t^2\) is the gravitational pull, 112t is the initial velocity, and 128 is the initial height of the ball.

To find how long it takes for the ball to hit the ground, we set s(t) equal to 0 and solve for t:

\(0 = -16t^2 + 112t + 128\)

We can simplify this equation by dividing both sides by 16:

\(0 = -t^2 + 7t + 8\)

0 = (t - 8)(-t - 1)

So t = 8 or t = -1. Since time cannot be negative, the ball hits the ground after 8 seconds.

To find the maximum height of the ball, we need to find the vertex of the parabolic equation. The x-coordinate of the vertex is given by:

t = -b/2a = -112/(2*(-16)) = 3.5

Plugging this value into the equation, we get:

s(3.5) = \(-16(3.5)^2 + 112(3.5) + 128\) = 464 feet

So the maximum height of the ball is 464 feet.

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Depending on the spacing of the grating, there can be up to four bright spots seen on the screen behind the grating.


A grating is composed of multiple lines that are etched onto a surface, and when a light passes through these lines, it is split into its component wavelengths. Since the laser is 480 nm, the diffracted light will be composed of 480 nm light.

When light is shone through a grating, it diffracts and produces a pattern of bright spots and dark fringes on a screen placed behind the grating.

Depending on the spacing of the grating, there can be up to four bright spots seen on the screen behind the grating.

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The rocket engine that fires against the direction a spacecraft is headed so the spacecraft slows down is called Retro engine.

Spacecraft are the space automobiles that might be capable of flying out of doors of the Earth’s ecosystem in the area. They offer us a method of transportation from the Earth to the area and objects in it. There may be numerous spacecraft that are familiar to most of people e.g. Apollo 11 which took Neil Armstrong and his group to the Moon.

Crewed Spacecraft – Crewed spacecraft are the ones that carry people to the area. There have been several crewed spacecraft to the area consisting of Vostok 1 – the first crewed spacecraft in records dispatched by way of the United States of America.

Earth-Orbit Satellites – all of the satellites, which orbit across the Earth, fall in this class. The maximum tremendous satellite in orbit on the Earth is Hubble Telescope.

Space Probe – these are unmanned spacecraft that might be fitted with medical instruments for exploring objects in space e.g. planets, Moon, and solar.

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Generally, the coefficient of static friction should be at least 0.7 for a car traveling at this speed, but this value could be higher depending on the specific conditions.

The coefficient of static friction, or μs, is the ratio of the maximum static force that can be applied without causing slipping to the normal force between two surfaces. The coefficient is affected by the surfaces in contact and the material they are made of.

The tires of a car also have an effect on the coefficient of static friction. Tires with a greater tread depth can provide better grip on the road and therefore have a higher coefficient of static friction than tires with a shallow tread. Tire pressure also plays a role, as low pressure can reduce the coefficient of static friction.

The weight of the vehicle is also an important factor. Heavier vehicles tend to have a higher coefficient of static friction, as the greater mass increases the normal force between the car and the surface.

In conclusion, the coefficient of static friction for a car traveling at 115 km/h around a turn depends on several factors, including the road surface, the vehicle's tires, and the vehicle's weight.

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Answer:

NaSO

Explanation:

Since there is no common factor besides 1, the formula is already the empirical formula for this compound.

good luck, i hope this helps :)

Answer:

The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. Hopes this helps.

Explanation:

The given problem can be solved using the following free-body diagram:

The diagram is the free-body diagram for the pulley that is holding the weight. Where:

Now we add the forces in the vertical direction:

Adding like terms:

Now, since the velocity is constant this means that the acceleration is zero and therefore the sum of forces is zero:

Now we solve for "T" by adding "mg" from both sides:

Now we divide both sides by 2:

Now we substitute the values and we get:

Solving the operations:

Now we use the free body diagram for the second pulley:

Now we add the forces in the vertical direction:

The forces add up to zero because the velocity is constant and the acceleration is zero:

Solving for the force:

Therefore, the pulling force is equal to the tension we determined previously and therefore is:

Answer:

the work done can be positive or negative  

Explanation:

Answer:

-Relative refractive index– It is the ratio of speed of light in one medium to the speed of light in another medium

-Absolute refractive index– It is the ratio of light in vacuum to the speed of light in another medium.

Explanation:

Answer:

The answer is d

Explanation:

Because he is from the same species

Answer:

D

Explanation: