An air puck of mass 0.029 kg is tied to
a string and allowed to revolve in a circle
of radius 1.7 m on a frictionless horizontal
surface. The other end of the string passes
through a hole in the center of the surface,
and a mass of 1.5 kg is tied to it, as shown.
The suspended mass remains in equilibrium
while the puck revolves on the surface.
0.029 kg
1.7 m
1.5 kg
What is the magnitude of the force that
maintains circular motion acting on the puck?
The acceleration due to gravity is 9.81 m/s?.
Answer in units of N.
part 2 of 2
What is the linear speed of the puck?
Answer in units of m/s.

Answer: I believe it’s location D. Or whichever is the location of slow crystallization.

Explanation: Slow crystallization of magma forms granite. Hope this helps. :)

Answer:

D

Explanation:

Could someone help me? A cannon is fired with an initial horizontal velocity of 20 m/s and initial vertical velocity of 25 m/s . After 3s in the air, the canon hits its target. How far away was the canon from its target?

A high jumper leaves the ground with an initial velocity of 10 m/s rightward at an angle of 15 degrees . What is the high jumper's initial horizontal velocity?

The time required for the rock to reach the ground is 1.11 second.

Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).

Initial height of the rock: h = 6.00 m.

Acceleration due to gravity: g = 9.8 m/s²

Let,  the time required for the rock to reach the ground is = t.

Then:

h = 1/2 × gt²

t = √(2h/g)

= √ {(2 × 6.00)/9.8} second.

= 1.11 second.

Hence, the time required for the rock to reach the ground is 1.11 second.

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Answer:

i think try theanswer

Explanation:

proper

Answer:

A

Explanation:

For an object to move with constant speed the forward force is opposed by the effects of forces. There is no resultant force acting or constant speed is a result of no resultant force.

Newton's second law states that an object with no net forces acting on it which is initially at rest will remain at rest. If it is moving, it will continue to move in a straight line with constant velocity. Newton's Second Law states: F = ma. F is the net force acting on an object.

Also if velocity or speed is constant the acceleration will be 0 the F=m×0

F=0.

Answer:

1. Fleming's left hand rule

2. It must be projected towards the east

Explanation:

Fleming's left-hand rule states that; When a current-carrying conductor is placed in an external magnetic field, the conductor experiences a force perpendicular to both the field and to the direction of the current flow. This rule was first put forward by John Ambrose Fleming in the later part of the nineteenth century.

Hence if the thumb, fore finger and middle finger of the lefthand are held mutually at right angles to each other; the thumb shows the direction of motion, the fore finger shows the direction of the field while the middle finger shows the direction of the current.

Hence, if the alpha particle is projected eastwards(at right angles) to the uniform magnetic field, it will be deflected southwards in the magnetic field.

The mass of the solid disk of radius 0.14 m, rotating about an axis through its center and perpendicular to its face with a constant angular acceleration of 120 rad/s2 is approximately 47.62 kg.

To solve this problem, we can use the formula:

Torque = Moment of Inertia x Angular Acceleration

The moment of inertia of a solid disk rotating about its center is:

I = (1/2) x m x r^2

Where m is the mass of the disk and r is the radius.

We can also find the torque applied to the disk using the formula:

Torque = Force x Radius

Substituting the values given in the problem, we get:

Torque = 40 N x 0.14 m = 5.6 Nm

Now, equating the two formulas for torque, we get:

(1/2) x m x r^2 x alpha = 5.6 Nm

Where alpha is the angular acceleration given in the problem. Substituting the values, we get:

(1/2) x m x (0.14 m)^2 x 120 rad/s^2 = 5.6 Nm

Simplifying and solving for m, we get:

m = 5.6 Nm / ((1/2) x (0.14 m)^2 x 120 rad/s^2)

m = 5.6 Nm / 0.1176 kgm^2/s^2

m = 47.62 kg

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Answer:

can you take a picture of the whole paper so I can see exactly what else it says so I can figure out the solution the only thing I see is wave speeds and speed of the sounds and distance and frequency

Answer:

Answer: divide the output force by the input force

Explanation: your welcome

The mechanical advantage which a simple machine provides can be calculated by dividing the output displacement by the input displacement. Thus, the correct option is B.

The mechanical advantage of a simple machine can be defined as the ratio of output force applied on the object to input force. Mechanical advantage is also the ratio of load overcame by a simple machine to the effort which is applied by that machine. The formula for mechanical advantage of a simple machine is given as:

M.A. = output force / input force

M.A. = Load / effort

Thus, the mechanical advantage of a simple machine depends both on the output force of the simple machine and the input force of the machine.

Therefore, the correct option is B.

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The ranking of given scenarios on the basis of the linear speed of block is: C > E > A = B = D > F

A pulley is a wheel on an axle or shaft designed to assist in the movement and change of direction of a tensioned cable or belt, or in the transmission of power between a shaft and a cable or belt.

Whether belts, cables or chains, all cable pull systems work according to the same principle. For example, the speed of all pulleys in a pulley system can be calculated by taking the ratio of the diameters of each pulley.

Linear speed (v) ∝ R inner/R outer

So, the higher the value of ratio, higher will be the speed.

Let's calculate the R inner/R outer ratios for each case:

A) 0.4/0.8 = 0.5

B) 0.1/0.2 = 0.5

C) 0.5/0.6 = 0.83

D) 0.2/0.4 = 0.5

E) 0.3/0.4 = 0.75

F) 0.2/0.6 = 0.33

The speed in highest in case C, whereas it is lowest in case F.

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The complete question is as follows:

The pulley in (figure 1) represents different pulleys that are attached with outer radius and inner radius indicated in the table. the horizontal rope is pulled to the right at a constant linear speed that is the same in each case, and none of the two separate ropes slips in its contact with the pulley.

A) R outer = 0.8m; R inner = 0.4m

B) R outer = 0.2m; R inner = 0.1m

C) R outer = 0.6m; R inner = 0.5m

D) R outer = 0.4m; R inner = 0.2m

E) R outer = 0.4m; R inner = 0.3m

F) R outer = 0.6m; R inner = 0.2m

Rank these scenarios on the basis of the linear speed of block.

Answer:

A rectangle has two dimensions:we can measure its length and,perpendicular to that,its width.

Explanation:

Answer:  An effect of continental drift is causing tectonic plates resting upon the convecting mantle to move which results in natural disasters like earthquakes, volcanic eruptions, and more.

0.84 m is the distance the painter walk before the plank starts to fall.

Torque is a measure of the force that rotates an object about an axis. A force accelerates an object with linear kinematics. Similarly, torque causes angular acceleration. Therefore, torque can be defined as the rotational equivalent of a linear force. The straight line around which an object rotates is called the axis of rotation. In physics, torque is simply the tendency of a force to twist or twist. Various terms such as moment and moment of force are used interchangeably to describe torque. The distance from the point of force application to the axis of rotation is sometimes called the moment arm or lever arm.

Mass of the painter (m₁) = 79 kg

Weight of painter (w₁) = 79 × 9.8

= 774.2 N

Mass of bucket (m₂) = 74 kg

Weight of bucket (w₂) = 23 × 9.8

= 225.4 N

Distance between them (L) = 2.9 m

Let d be the distance at which the painter can walk before the plank starts to fall.

At distance d, the torque due to painter and bucket is equal to each other:    

T₁ = T₂

w₁d = w₂L

d = (w₂L)/w₁

d = (225.4 × 2.9)/774.2

d = 0.84 m

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Gas particles can change to solid particles if the temperature decreases.

The state of matter of a substance is determined by its temperature and pressure. When the temperature of a gas decreases, its particles lose kinetic energy and slow down. This decrease in kinetic energy leads to a decrease in the average speed of gas particles.

As the temperature continues to decrease, the particles lose energy and move closer together. At a certain temperature known as the condensation point or the freezing point, the gas particles no longer have enough energy to overcome the intermolecular forces holding them together.

At this point, the gas undergoes a phase transition and changes into a solid. The process of gas turning into a solid is called condensation or freezing, depending on the specific substance.

During condensation, the gas particles arrange themselves in a more orderly and structured manner, forming a solid. The transition from gas to solid involves the release of energy, known as heat of fusion.

In summary, when the temperature of a gas decreases below its condensation or freezing point, the gas particles lose energy, slow down, and eventually come together to form a solid.

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If a 77-kg gymnast climbs a rope at a constant speed, the tension in the rope will be 755.37N. The term "constant speed" or "uniform rate" refers to a fixed rate of movement or at  constant speed.

It is also possible to refer to tension as the action-reaction pair of forces acting at each end of the aforementioned elements. Tension is defined as the pulling force transmitted axially by a string, rope, chain, or other similar object, or by each end of a rod, truss member, or other comparable three-dimensional object. Compression's antithesis might be tension.

T = mg; T- mg = 0

T = 77*9.81

T = 755.37N

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Mechanical waves and electromagnetic waves are two types of waves that differ in their properties.

Some of the patterns that can be observed when comparing mechanical waves and electromagnetic waves:

Mechanical waves can only travel through a medium, while electromagnetic waves can travel through a vacuum.

Mechanical waves are created by the vibration of matter, while electromagnetic waves are created by the vibration of electric and magnetic fields.

The speed of a mechanical wave depends on the medium it is traveling through, while the speed of an electromagnetic wave is always the same (the speed of light in a vacuum).

The direction of propagation of a mechanical wave is perpendicular to the direction of vibration, while the direction of propagation of an electromagnetic wave is parallel to the direction of vibration.

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Answer:

400Pa

Explanation:

use pressure = force/area

\(\\ \rm\longmapsto Pressure=\dfrac{Force}{Area}\)

\(\\ \rm\longmapsto Force=Pressure(Area)\)

\(\\ \rm\longmapsto Force=200(0.5)\)

\(\\ \rm\longmapsto Force=100N\)

Answer:

if its talking about earth then rotate I'll say

Answer:

universe is expanding

Explanation:

On a position vs time graph (x vs t), displacement is the difference in positions (Δx = x₂ − x₁).

On a velocity vs time graph (v vs t), displacement is the area under the graph (Δx = ∫ v dt).

The maximum acceleration of the object is 10.94 x 10² m/s².

The equation of displacement is given as,

y(t) = 4.8 cos(15.1 t)

It is in the form, y(t) = A cos(ωt)

So, the amplitude of the SHM, A = 4.8 m

Angular frequency, ω = 15.1 s⁻¹

The maximum acceleration,

a(max) = -Aω²

the -ve sign indicates that the acceleration is acting towards the mean position.

a(max) = 4.8 x 15.1²

a(max) = 10.94 x 10² m/s²

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Explanation:

The density of silver is 10.5g/cm3

=2500.0g/10.5g/cm3

=238.09cm3

238.1cm3 to nearest tenth.

I hope my answer helps. Please mark as brainliest.

If F = 37 N, the static frictional force between the block and the table and the minimum force required to move it must be equal.

It is the force that regulates itself. The value of static friction varies from zero to the smallest force required to initiate motion. The formula for determining static friction is as follows: Normal Force divided by the static friction coefficient is static friction.

Although the maximum static friction will rise, the frictional force will always be the same as the weight in mg because friction cannot accelerate an object. Because FrN can take any value less than N to balance the weight, this is the case.

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Answer:

Explanation:

F - UkFN = ma Note Friction opposes the motion thus subtract friction from the force. Uk is the coefficient of kinetic friction. FN is the normal force equal to mg since I assume it’s on a horizontal surface.

F - Ukmg = ma (Note mass does NOT cancel.)

20 N - 0.3 (4kg)*(9,8 m/s^2) = 4kg*(a

Answer: c

Explanation:

The way to check which one is the correct one is to simply multiply and see if there are the same number of atoms in both sides for each element.

a. 2×2 atoms of Al ≠ 3×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

BOTH MUST BE EQUAL FOR IT TO BE ADJUSTED!!!!!

b. 3×2 atoms of Al ≠ 3×1 atoms of Al

3×3 atoms of O ≠ 2×2 atoms of O

c. 2×2 atoms of Al = 4×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

BOTH ARE EQUAL, CORRECT ANSWER!!!

d. 2×2 atoms of Al ≠ 1×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

Answer:

 a = 1.66 m /s²

Explanation:

This is a kinematics exercise

       v = v₀ + a t

        x = v₀ t + ½ a t²

we solve for the initial velocity in the first equation and substitute in the second

       v₀ = v - at

        x = (v- at) t + ½ a t²

        x = vt - a t² + ½ a t²

        x = v t - ½ a t²

we seek acceleration

       a = (v t -x) 2 / t²

let's calculate

        a = (15 6 - 60) 2/6²

        a = 1.66 m /s²

The magnitude of the new electric field is 40,000 N/C.

The electric field between two parallel plates is given by E = V/d, where E is the electric field, V is the potential difference between the plates, and d is the distance between the plates.

If the voltage is doubled, the new potential difference becomes 2V. If the distance between the plates is reduced to 1/5 the original distance, the new distance becomes d/5. Therefore, the new electric field is given by E' = (2V) / (d/5) = 10V/d = 10(2000 N/C) = 20,000 N/C.

However, the question asks for the magnitude of the new electric field, so the answer is the absolute value of 20,000 N/C, which is 40,000 N/C.

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Hi There!!

In physics, the concept of a frame of reference is used to specify the perspective from which an object or event is observed.

1). A frame of reference is where the measurements or observations will be made. Because of this, observing an event may be different when changing from one frame of reference to another, because the measurements will be different.

2). Defining frames of reference is necessary because the movement is relative, it may be that from our perspective or from a frame of reference on earth we are at rest, but seen from a frame of reference in space, we are in motion due that the earth is always moving.

3). Another example of frames of reference is a moving plane. Seen from the ground an object in the plane moves at the speed at which the plane travels, but if the frame of reference is fixed on the plane, the object is at rest.

Hope This Helps!!

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