a 1.50 mm -diameter ball bearing has 1.60×109 excess electrons

Answer:

450......

............

Answer:

1:A 2:C 3:B 4:A 5:C you wouldn't be able to consume as many vitamins. Hope this helps and God Bless

The correct answers for the choose the correct are  1:A ,2:C, 3:B ,4:A ,5:C. Food that is higher in fat and sugar is often inexpensive is the best example of how “access to food” shapes the health of a diet.

The condition of complete physical, mental, and the absence of sickness and disability is called good health.

1. Food that is higher in fat and sugar is often inexpensive is the best example of how “access to food” shapes the health of a diet.

2 The best advice for Pauline. She should include a small amount of fat in her diet.

3. The best response to Rohan will be If he is not eating healthy, he is increasing the chance of serious health problems later.

4. The best response to Marnie is there are many sources of hydration, so it is not just about drinking water.

5. He would be unable to absorb vitamins.is the  impact would this have on his overall health.

Hence, the correct answers are 1:A ,2:C, 3:B ,4:A ,5:C.

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To measure the free-fall acceleration on the distant planet, we can make use of the period of the pendulum's swing. The formula for the period of a simple pendulum.

The ability of carbon to form four covalent bonds: Carbon has four valence electrons, allowing it to form up to four covalent bonds with other atoms. This versatility in bonding allows for the formation of complex and diverse carbon-based molecules.The orientation of those bonds in the form of a tetrahedron: Carbon atoms bonded to four different groups tend to adopt a tetrahedral geometry. This arrangement contributes to the three-dimensional shape and structural diversity of carbon-based molecules.

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To determine the pressure at point (0.5 m, 0) when the pressure at point B is atmospheric, we will use the hydrostatic pressure formula.

Here's the step-by-step explanation:

Step 1: Identify the given information.
- Pressure at point B (P_B) = atmospheric pressure
- Point A coordinates: (0.5 m, 0)

Step 2: Use the hydrostatic pressure formula.
The hydrostatic pressure formula is: P_A = P_B + ρgh
Where:
- P_A is the pressure at point A
- P_B is the pressure at point B
- ρ (rho) is the fluid density
- g is the acceleration due to gravity (approximately 9.81 m/s²)
- h is the height difference between point A and point B

Step 3: Determine the height difference (h) between points A and B.
Since the point A is at a horizontal position (0.5 m, 0), there is no height difference between point A and point B. Thus, h = 0.

Step 4: Substitute the values into the formula.
P_A = P_B + ρgh
P_A = atmospheric pressure + ρ × 9.81 m/s² × 0
Since h = 0, the second term becomes zero.\

Step 5: Solve for the pressure at point A.
P_A = atmospheric pressure

Therefore, the pressure at point (0.5 m, 0) is equal to the atmospheric pressure since there is no height difference between the two points.

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After approximately 2.95 minutes, the concentration of ground in the tank will be 15.25%.

To solve this problem, we need to consider the amount of ground (salt) in the tank rather than its concentration. Let's break down the problem and solve it step by step:

Initial Conditions:

Volume of the tank:\(1020 ft^3\)

Initial concentration of ground in the dirty water: 30%

Concentration of ground in the cleaner water: 0.5%

Rate of pouring cleaner water: 10 ft^3 per minute

Let's denote the time in minutes as "t". At time t, the following variables will be applicable:

Volume of the dirty water in the tank: (1020 - 10t) ft^3 (due to pouring cleaner water and outflow)

Amount of ground in the dirty water: 0.3 * (1020 - 10t) ft^3 (30% concentration)

As cleaner water is poured into the tank at a rate of 10 ft^3 per minute, the amount of ground in the tank decreases at the same rate. Therefore, the rate of decrease in the amount of ground is 0.5% of 10 ft^3 per minute.

Differential Equation for the amount of ground in the tank:

\(dG/dt = -0.005 * 10\\dG/dt = -0.05 ft^3 \:per \:minute\)

Integrating the differential equation, we get:

\(G(t) = -0.05t + C\)

We can find the constant C using the initial condition:

\(G(0) = 0.3 * 1020 ft^3\) (initial amount of ground in the dirty water)

\(0 = -0.05 * 0 + C\\C = 0.3 * 1020 \:ft^3\)

The equation for the amount of ground in the tank as a function of time becomes:

\(G(t) = -0.05t + 0.3 * 1020 ft^3\)

We want to find the time t at which the concentration of ground in the tank is 15.25%. Since concentration = amount/volume, we can set up the equation:

\(\frac{(0.1525 * (1020 - 10t))}{(1020 - 10t) = G(t) / (1020 - 10t)}\)

Simplifying the equation, we get:

\(0.1525 = -0.05t + 0.3\)

Solving for t, we find:

t = 2.95 minutes

Therefore, after approximately 2.95 minutes, the concentration of ground in the tank will be 15.25%.

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Answer:

a

Explanation:an example An astronaut in space has the same mass as he does on earth while having different ... Newton's Second Law of Motion: Force = mass x acceleration ... Push less to move it (use less force.) ... Gravity has an effect on an object in the vertical direction only.

Answer:

it is a greater

Explanation:

hope it helps

Both the assertion and the reason given are true.If the mass of the object is less, the acceleration produced by the force will be more. Hence, the acceleration produced by the force is directly proportional to the magnitude of the force and inversely proportional to the mass of the object.

The given assertion: When astronauts throw something in space, that object would continue moving in the same direction and with the same speed; and the given reason: The acceleration of an object produced by a net applied force is directly related to the magnitude of the force, and inversely related to the mass of the object are both correct.Astronauts are capable of throwing objects in space because they are beyond Earth's gravity and do not have to deal with any significant air resistance. In the absence of other forces like friction or air resistance, the initial velocity will be conserved, and the object will continue to move with the same speed and direction. The object would continue to move in a straight line with the same speed because no external force acts on it to change the object's state of motion.Newton's second law states that the force of an object is directly proportional to its acceleration, but inversely proportional to its mass. F=ma, where F is force, m is mass, and a is acceleration. Therefore, if the mass of the object is less, the acceleration produced by the force will be more. Hence, the acceleration produced by the force is directly proportional to the magnitude of the force and inversely proportional to the mass of the object.

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The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

For instance, 50 km/hr west denotes the velocity of a car whereas 50 km/hr (31 mph) denotes the speed at which it is moving down a route.

The average speed of an object is determined by dividing the distance traveled by the amount of time it takes the object to reach the distance.

Therefore, The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

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The net force on an object with velocity=0 will depend on the given conditions and forces acting on the object. Based on the options provided:

• Net force will be the force of gravity on the object.

If the only force acting on the object is gravity, then the net force would indeed be the force of gravity on the object. In this case, the net force would not be zero unless the force of gravity on the object is also zero (which would require a unique scenario, such as being at the exact center of the Earth).

• Not force 0 only if the object has no mass (mass = 0).

If the object has no mass, then the net force would be zero since force is proportional to mass. However, this would be an uncommon scenario as most objects have non-zero mass.

• Net force = 0

If there are no forces acting on the object or if the forces acting on the object cancel each other out, then the net force would be zero.

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A-The magnitude is 7.3×10³ V/m, B-To the magnitude of the force 18.25 μN, C-the work done is 0.0363 μJ, and D- the change in potential energy of the same charge computed from the electric potential is also 0.0363 μJ.

PART A: The magnitude of the electric field between two parallel plates can be determined using the formula:

E = V/d

Given a potential difference of 365 V and a distance of 50.0 mm (or 50.0×10⁻³ m), we can calculate the electric field as follows:

E = 365 V / 50.0×10⁻³ m

≈ 7.3×10³ V/m

PART B:The force exerted by an electric field on a charge particle can be determined using the formula:

F = q * E

Given a charge of 2.50 nC (or 2.50×10⁻⁹ C) and an electric field strength of 7.3×10³ V/m, we can calculate the force as follows:

F = (2.50×10⁻⁹ C) * (7.3×10³ V/m)

= 18.25×10⁻⁶ N

= 18.25 μN

PART C: The work done by an electric field on a charged particle can be determined using the formula:

W = q * ΔV

Given a charge of 2.50 nC (or 2.50×10⁻⁹ C) and a potential difference of 365 V, we can calculate the work done as follows:

W = (2.50×10⁻⁹ C) * (365 V)

= 0.913×10⁻⁶ J

= 0.913 μJ

PART D: Comparing the work done (0.0363 μJ) to the change in potential energy computed from the electric potential:

The change in potential energy of a charged particle moving between two plates with a potential difference can be determined using the formula:

ΔPE = q * ΔV

In this case, the potential difference between the plates is 365 V and the charge of the particle is 2.50 nC (or 2.50×10⁻⁹ C). Therefore:

ΔPE = (2.50×10⁻⁹ C) * (365 V)

= 0.913×10⁻⁶ J

= 0.913 μ.

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The resistance of a circuit that contains two 50.0 Ω resistors connected in series with a 12.0 V battery is 100 Ω. The resistance of the circuit is equal to the sum of the individual resistors when they are connected in series.

In this case, two 50.0 Ω resistors are connected in series, resulting in a total resistance of 100 Ω. Resistance can be defined as the obstruction that electricity faces when it travels through a conductor. The greater the resistance, the less current is allowed to flow through the circuit. The following equation is used to calculate resistance: R = V / IWhere R is resistance, V is voltage, and I is current.

Resistance can also be calculated using Ohm's Law if we know the values of voltage and current. When resistors are connected in series, the total resistance of the circuit is equal to the sum of the individual resistors. This is expressed by the following equation:RT = R1 + R2 + ... + RNWhere RT is the total resistance of the circuit, and R1, R2, and RN are the individual resistors. In this case, the circuit contains two 50.0 Ω resistors connected in series.

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Answer:

a is constant., v is increasing.

Explanation:

F = ma

F and m are both constant, so a is constant.

v = at, t is increasing, so v is increasing.

The velocity of the object will be equal to numerical multiplication of acceleration and time while  the acceleration of the body is the total applied force divided by mass of the object.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

A spring balance can be used to calculate the force. Newton(N) is the SI unit of force.

For applying nonzero force, the object will come in motion.

Let, the mass of the body = m.

Force applied on it = F.

Acceleration of the body = a.

And after time t, the velocity of the object become v.

From Newton's 2nd law of motion, we can write,

Applied force = mass × acceleration.

⇒ F = ma

⇒ a = F/m.

And, final velocity will be = acceleration × time = at

Hence, the acceleration of the body is the total applied force divided by mass of the object and velocity of the object after some time will be equal to numerical multiplication of acceleration and time.

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Thermal expansion is used in applications such as railroad track buckling, engine coolants and mercury in thermometers.

Thermal expansion changes the space between the particles of substance, which changes the volume of substance and negligibly changing its mass thus changing its density, which has effect on any buoyant forces acting on it.

Solid expansion occurs due to the thermal expansion. Increasing the temperature of solids, liquids or gas results in expansion. The effect of solid expansion is an increase in volume of solid. Change in volume of a solid is directly proportional to initial volume and change in temperature.

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A wave that remains in a constant position is referred to as a stationary wave or a standing wave.

It is formed by the superposition of two waves with the same frequency and amplitude traveling in opposite directions. Unlike a traveling wave that moves through space, a standing wave appears to be stationary because the wave peaks and troughs oscillate in place.

The formation of a standing wave occurs when a wave reflects back upon itself, interacting constructively and destructively with the incoming wave. This phenomenon is characterized by the presence of nodes and antinodes. Nodes are points along the wave where the amplitude is always zero, resulting from destructive interference between the two waves. Antinodes, on the other hand, are points of maximum displacement, created by constructive interference..

Standing waves have significant implications in various fields of study. In physics and engineering, they are essential in the analysis of acoustics, optics, and electromagnetic fields. They find applications in musical instruments, where standing waves inside the instrument's resonating body create distinct harmonics and produce specific musical tones.

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5 sin(2πt/3) is the displacement of the slinky undergoing oscillation. The amplitude is 13 inches.

The displacement of the slinky as a function of time can be modeled by a sinusoidal function of the form:

y = A sin(2πft + φ)

If the distance is changed to 13 inches and the time for one oscillation is changed to 1 second, the amplitude of the oscillation becomes 13 inches and the frequency becomes 1 oscillation per second. The phase shift remains 0. Substituting these values into the equation for the displacement of the slinky, we get:

y = 13 sin(2π(1)t + 0)

= 13 sin(2πt)

This is the function that describes the displacement of the slinky as a function of time, given the updated values for the distance and oscillation time. Note that this function is the same as the displacement function for a simple harmonic oscillator, which is a system that undergoes oscillatory motion with a frequency that is directly proportional to the square root of the spring constant and inversely proportional to the mass of the oscillating object.

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A one-time pad is a type of encryption that is completely unbreakable if it is done correctly. It works by generating a random key that is at least as long as the message being encrypted. The key is then combined with the message using an XOR operation.

This produces a ciphertext that cannot be decrypted without the key. The key is used only once and then discarded, hence the name "one-time pad". A one-time pad is completely unbreakable because there is no pattern to the key that can be used to decrypt the message. Each character in the key is generated randomly and independently of the other characters. Therefore, the key is completely unpredictable. Even if an attacker knows the key length and has access to the ciphertext, they cannot use any techniques to decrypt it.

This is because there is no pattern to the ciphertext that can be used to determine the key.The only way to decrypt a one-time pad is to have the key. If an attacker tries to brute-force the encryption by trying all possible keys, they will generate every possible message that is the same length as the original message. This means that the ciphertext is completely meaningless without the key. It is therefore important to keep the key secret and ensure that it is only used once. ,Message: yellow stone Key: wolf To encrypt the given message using the vigenere cipher, we follow the steps below:Step 1: Write the message and key in a tabular form as shown below. To keep the process organized, we use the letters of the key to label the columns.

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The true airspeed will increase and true altitude will increase.

True airspeed is the airspeed of an aircraft relative to undisturbed air.

It's the aircraft speed relative to the airmass in which it's flying.

If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will increase and true altitude will increase.

Thus, the true airspeed will increase and true altitude will increase.

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Answer:

2.34

Explanation:

Answer:

2.34

Explanation:

Hope this helps! :D

Answer:

1.A

2.C

3.B

4. i.dk about that one

Explanation:

1. It is true that Tracking your exercise can help you stick with an exercise routine.

2. Yes, it is best to do as many different kinds of exercise as possible.

3. Building muscle strength helps with all aspects of fitness

4. Yoga would be the best exercise to achieve this goal.

Exercise is any activity that utilizes the physical movements of the body that improves a people's health, endurance, and wellbeing while lowering their chance of contracting illnesses. It enables the person to keep their body weight in a healthy weight range.

The benefits of fitness fluctuate depending on the sort of dying a person experiences. Even if a muscle is stretched, excessive sitting can cause a number of illnesses, many of which are fatal. The individual should engage in mobility activities as well as exercising to improve their stamina.

Thus, exercise is very necessary for health.

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Explanation:

Taking g=10m/s²

P.E =mgh

981J= 2×10×m

981J=20m

m. = 981J/20

m. = 49.05kg

Answer:

1. Range = 153.42 m.

2. Maximum height = 54.78 m

3. Time of flight = 6.69 s

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 40 ms¯¹

Angle of projection (θ) = 55°

1. Determination of the range.

Initial velocity (u) = 40 ms¯¹

Angle of projection (θ) = 55°

Acceleration due to gravity (g) = 9.8 ms¯²

Range (R) =?

The range i.e how far the ball went can be obtained as follow:

R = u² Sine 2θ /g

R = 40² × Sine (2×55) / 9.8

R = 1600 × Sine 110 / 9.8

R = 1600 × 0.9397 /9.8

R = 153.42 m

2. Determination of the maximum height.

Initial velocity (u) = 40 ms¯¹

Angle of projection (θ) = 55°

Acceleration due to gravity (g) = 9.8 ms¯²

Maximum height (H) =?

H = u² Sine² θ / 2g

H = 40² × (Sine 55)² / 2 × 9.8

H = 1600 × (0.8192) ² / 19.6

H = 54.78 m

3. Determination of the time of flight

Initial velocity (u) = 40 ms¯¹

Angle of projection (θ) = 55°

Acceleration due to gravity (g) = 9.8 ms¯²

Time of flight (T) =?

T = 2u Sine θ / g

T = 2 × 40 × Sine 55 / 9.8

T = 80 × 0.8192 / 9.8

T = 6.69 s

Answer:

option A 4kg is your answer

Explanation:

given

mass(m)=?

velocity (v)=5m/s

we have

kinetic energy =50J

1/2 ×{m×v²)=50

m×5²=50×2

m=100/25=4 kg

As the object is thrown up with the initial velocity of 20.0 m/s, and there is an air resistance force that would cause an acceleration of 3.00 m/s2, the speed of the object as a return to the ground is 10.8 m/s.

The kinematic equations are a set of equations that describe the motion of an object with constant acceleration.

When we have an initial velocity value, it is written as Vo, while for the final velocity, we simply write V or Vt. As an object moves through the air, air resistance slows the object’s speed.

The formula of the kinematic equation used for solving this case is

Vt = V0 + at (the gravity is 10 m/s2)

\(Vt = Vo + (-g-a)t\\\0 = 20 + (-10-3)t\\0 = 20-13t\\\13t = 20\\\t = \frac{20}{13}\)

After the time is known, now we can insert the value into the following formula :

\(Vt = Vo + (g-a)t\\Vt = 0 + 7.\frac{20}{13} \\Vt = 0 + \frac{140}{13} \\\Vt = 10.8 m/s\)

Thus, the speed of the object returns to the ground after being thrown up with an initial velocity of 20.0 m/s and acceleration of 3.00 m/s2, which is 10.8 m/s.

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Answer:

111op

Explanation:

Answer:

11op

Explanation:good job and work hard

Answer:

frost wedging

Explanation:

When glaciers melt and the rock beneath is weathered and broken down, this is called frost wedging.

Answer:

It is an example of kinetic art motion

Explanation:

Alexander caders's mobile was made by an American sculptor called Alexander Cader. He made innovative kinetic mobile sculptures that use that uses motor or air currents.

Alexander caders's mobile is a kinetic sculptures because movement is it's basics. The sculptures is well moved by air currents. The Alexander cader mobiles make movement as integral part of the design of the sculpture.

Answer:

the second option

Explanation:

an object vibrating at a second objects natural frequency forces the second object to vibrate

The period of an oscillation depends on the mass of the object attached to the spring, as well as the elasticity and length of the spring.

When a student has a 0.125 kg mass and a spring in the laboratory exploration, he/she hangs the mass on the spring, sets it into oscillation, and collects data for position and velocity of the mass as a function of time.

The following is the meaning of the terms spring and oscillation:

Spring: A spring is a mechanical device that stores elastic energy. Springs are devices that absorb mechanical energy or force and then release it later.

Oscillation: It is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. A mass of 0.125 kg hangs from a spring in this scenario.

When the spring is stretched by a certain distance, the mass oscillates with a certain frequency or a series of back-and-forth vibrations. These vibrations are referred to as oscillations. The energy saved in the spring is what powers the oscillations.

As a result, the period of an oscillation depends on the mass of the object attached to the spring, as well as the elasticity and length of the spring.

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Answer: 32 centimeters is 12.5984 inches

Explanation: