Calculate the potential energy of a mass of 5kg raised 4m above the
ground. (g = 10m/s)
Your answer​

Answer:

2NH3 --> N2 + 3H2 decomposition

Pulse type of modulation is applied to radio-controlled toys, therefore the correct answer is option D.

It can be defined as the number of cycles completed per second. It is represented in hertz and inversely proportional to the wavelength.

Toys controlled by remote control operate by emitting infrared radiation. These infrared rays have a frequency of 34–48 kilo Hertz.

Different types of modulations, such as frequency and amplitude modulation for transmitting and receiving video and music, are employed for other reasons.

Thus, the Pulse-type of modulation is applied to radio-controlled toys, therefore the correct answer is option D.

Learn more about frequency from here

brainly.com/question/14316711

#SPJ1

Explanation:

There are 5 kinematic equations, and 5 variables.

Each question will give you 3 variables and ask you to solve for a fourth.

To determine which equation to use, look at which variable is not included in the problem.

For example, if the question does not include time, then you need to use a kinematic equation that does not have t in it.  That would be:

v² = v₀² + 2aΔx

Or, if the question does not include the final velocity, then you need a kinematic equation that does not have v in it.  That would be:

Δx = v₀ t + ½ at²

Answer:gravity

Explanation:

gravity holds the planets in its orbit

Answer:

Newton's first law is called the law of inertia.

Explanation:

(a) James has the most momentum which is 294 kgm/s.

(b) The resultant force acting on Basma is 90.78 N.

(c) The time taken for James to stop is 3.2 seconds.

Momentum of James: P = mv = 98 x 3 = 294 kgm/s

Momentum of Basma: P = mv = 59 x 4 = 236 kgm/s

F = ma = mv/t = P/t = 236/2.6 = 90.78 N

F = P/t

t = P/F

t = 294/90.78

t = 3.2 s

Learn more about momentum here: https://brainly.com/question/7538238

#SPJ1

The player recoils about the distance of 0.0814 meters in the time it takes the puck to reach the 16.0-meter distant goal in a frictionless ice environment.

To solve this problem, we can use the principle of conservation of momentum. The initial momentum of the system (player and puck) is zero because both are initially at rest. After the player hits the puck, the total momentum of the system remains conserved.

Let's denote the initial velocity of the player as v (which is zero) and the velocity of the player after hitting the puck as V (which we need to find). The mass of the player is given as 84.0 kg, and the mass of the puck is 0.150 kg.

According to the conservation of momentum:

(mass of player × initial velocity of player) + (mass of puck × initial velocity of puck) = (mass of player × final velocity of player) + (mass of puck × final velocity of puck)

(84.0 kg × 0) + (0.150 kg × 0) = (84.0 kg × V) + (0.150 kg × 39.0 m/s)

0 = 84.0V + 5.85

84.0V = -5.85

V = -5.85 / 84.0

V = -0.07 m/s

The negative sign indicates that the player moves in the opposite direction to the puck.

Now, to calculate the distance the player recoils, we can use the equation:

Distance = |final velocity of the player| × time

Since we have the velocity and need to find the time, we can use the equation of motion:

Distance = (1/2) × acceleration × \(time^2\)

Since the ice is frictionless, the only force acting on the player is the force exerted on them when they hit the puck. This force is equal to the change in momentum of the puck:

Force = (mass of puck × final velocity of puck) / time

= (0.150 kg × 39.0 m/s) / time

= (5.85 kg·m/s) / time

The force acting on the player can be equated to the mass of the player times its acceleration:

Force = mass of player × acceleration

mass of player × acceleration = (5.85 kg·m/s) / time

acceleration = (5.85 kg·m/s) / (time × mass of player)

Now, equating the two expressions for acceleration:

(5.85 kg·m/s) / (time × mass of player) = acceleration

(5.85 kg·m/s) / (time × 84.0 kg) = acceleration

We can now substitute this expression for acceleration into the equation for distance:

Distance = (1/2) × [(5.85 kg·m/s) / (time × 84.0 kg)] × \(time^2\)

Simplifying:

Distance = (1/2) × (5.85 kg·m/s) / 84.0 × time

Distance = (0.5 × 5.85 kg·m/s × time) / 84.0

Distance = 0.03482 × time

We need to find the time it takes for the puck to reach the goal, which is 16.0 m away. We can use the equation of motion:

Distance = initial velocity × time + (1/2) × acceleration × \(time^2\)

Since the initial velocity of the puck is 0, the equation simplifies to:

Distance = (1/2) × acceleration × \(time^2\)

Solving for time:

\(time = \sqrt{((2 * Distance) / acceleration)\)

\(= \sqrt{((2 * 16.0 m) / (5.85 kgm/s) / time)\)

\(= \sqrt{(5.479 m^2s^2/kg)}\)

= 2.34 s

Now, substituting this value of time into the expression for distance:

Distance = 0.03482 × 2.34

= 0.0814 m

To learn more about distance follow the link:

https://brainly.com/question/13034462

#SPJ4

The Jovian planets are formed from materials different from the terrestrial planets for the reason that gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust."

A Jovian planet, also known as a gas giant, is a huge planet that has a primarily gaseous composition. The Jovian planets include Jupiter, Saturn, Uranus, and Neptune. They are primarily made up of hydrogen and helium, and they have enormous atmospheres.Jovian planets are formed farther away from the heat of the Sun, so they are formed from lighter-weight nebulae "dust." Terrestrial planets, on the other hand, are formed nearer to the Sun, so they are formed from heavier-weight nebulae "dust." The density of the materials that make up the Jovian planets is lower than that of the terrestrial planets due to this. This means that the Jovian planets have lower densities and a greater volume than the terrestrial planets.

Hence, the correct option is d. Gaseous Jovian planets, formed farther away from the heat of the Sun, are formed from light weight nebulae "dust."

Learn more about Jovian planets visit:

brainly.com/question/32848859

#SPJ11

Answer:

to have courage and show the strength of your character. ... A person with true grit has passion and perseverance. Goals are set and followed through.

Explanation:

for example: i had the passion and the courage to finish my school work and chores for i can go out with my friends and to get out of the house for a bit and have fun so i had the courage to finish chores from the house and do some schoolwork for i can finish ad hang out with some friends. so i had the strength to finish everything because i didn't want to be doing school work and chores any more so i had the passion to finish up quickly  

Answer: 14

Explanation:

Force(normal)*coefficient

The static friction force is a force that prevents motion of an object kept on a surface, due to the interaction of the surface of the object and the surface on which it is kept

Reason:

The known parameter are;

The weight of the block, W = 35 N

The static friction of the surface of the table surface, \(\mu_s\) = 0.40

Required:

To find the minimum force to start the block moving

Solution:

The force required to start the block moving is given by the frictional force that needs to be surpassed

Force required, F = Force of friction

Force of friction = Normal reaction × Coefficient of static friction

On a flat surface, the normal reaction = The weight of the object

∴ Force of friction, \(F_f\) = Weight of the object × Coefficient of static friction

Which gives;

\(F_f = W \times \mu_s\)

\(F_f = 35 \, N \times 0.40 = 14 \, N\)

Force required, F = Force of friction, \(F_f\) = 14 N

The minimum force required to start the block moving, F = 14 N

Learn more about the static friction force here:

https://brainly.com/question/13877320

Answer:

North star, its close to our solar system but not in it. hope this helps

Answer:

to live honorable

Explanation:

Answer:

Road safety can be drastically increased if all the drivers on the road were considerate. For eg, if a person is driving slow then one should be considerate enough to wait till he gives side. Also if a person is not confident and driving slow then he should be considerate enough to drive in the slow lane.

Explanation:

safety rules on the road?

Important Traffic Rules To Follow To Ensure Safety While Driving

Always wear a seatbelt. ...

Avoid distractions. ...

Do not cross the speed limits. ...

Service your car regularly. ...

Follow traffic signals. ...

Maintain lane discipline. ...

Be careful during bad weather. ...

Maintain a safe distance.

Answer:

9 and 4

Explanation:

The relation is:

● r = s^2 / t^2

Triplind s means multiplying it by 3. Since it's an equation we should multiply both sides by the same number

Let k be the number we should multiply by r

●k* r = (3s)^2 / t^2

●k* r = 9s^2 /t^2

We have multiplied s^2 by 9 so we should do the same for r.

k = 9

■■■■■■■■■■■■■■■■■■■■■■■■■■

Doubling t means multiplying it by 2.

Let x be the number we shoukd multiply by r.

● x* r = s^2/(2t)^2

● x*r = s^2/ 4t^2

We have multiplied t^2 by 4 so we should do the same for r.

x= 4

Answer:

it would decrease i think

Explanation:

Answer:

HMMMMMM??????

Explanation:

Explanation:

m1u1+m2u2=m1v1+m2v2

(3000×15)+(2200×-10)=(3000×v)+(2200×v)

45000-22000=5200v

23000=5200v

v=230/52

v=4.423m/s to the east.

Answer:

rx=3.5 ry=2.9

Explanation:

i did it and i got them right

Answer:

Rx: 3.5km

Ry: 2.9km

Explanation:

The orbital period of the satellite circling the Earth at an altitude of 3500 km is 163 minutes

The orbital period for the satellite circling the Earth at an altitude of 3500 km can be obtained as follow:

T² = (4π² / GM) × a³

T² = [(4 × 3.14²) / (6.67×10¯¹¹ × 5.987×10²⁴)] × 9900000³

Take the square root of both sides

T = √[((4 × 3.14²) / (6.67×10¯¹¹ × 5.987×10²⁴)) × 9900000³]

T = 9789.15 s

Divide by 60 to express in minutes

T = 9789.15 / 60

T = 163 minutes

Thus, we can conclude that the orbital period of the satellite is 163 minutes

Learn more about orbit period:

https://brainly.com/question/30205659

#SPJ1

It is true that the speed of light in vacuum is is the same for all observers, no matter what the speed of the observer or source.

It is a basic postulate of the Einstein's theory of relativity that speed of light is constant regardless of one's frame of reference. Value for the speed of light in vacuum is defined as 299,792,458 meters per second.

Speed of light can be divided into two parts:

To know more about speed of light, refer

https://brainly.com/question/104425

#SPJ4

Answer:

10s

Explanation:

vf = vi+at

30=10+2t

20= 2t

t = 10 s

Answer:

The value is \(v_t = 172 \ km/h\)

Explanation:

From the question we are told that

    The average speed for the first 12 hours is \(u = 185 km/h\)

    The average speed for the next 13 hours is  \(v = 160 \ km/h\)

Generally the total time taken is mathematically represented as

     \(t_t = 12 + 13\)

=> \(t_t = 25 \ h\)

The distance covered in the first movement is

          \(D = u * 12\)

         \(D = 185 * 12\)

        \(D = 2220 \ km\)

The distance covered in the first movement is

          \(d= v * 13\)

         \(d = 160 * 13\)

        \(d = 2080 \ km\)

The total distance traveled is  

       \(D_t = D + d\)

       \(D_t = 2220 +2080\)

      \(D_t = 4300 \ km\)

The average  of the whole journey is

      \(v_t = \frac{D_t}{t_t}\)

     \(v_t = \frac{4300}{25}\)

     \(v_t = \frac{4300}{25}\)

    \(v_t = 172 \ km/h\)

Answer:

Your answer would be 28,000 N (newtons).

Explanation:

We'd simply get this by using the formula:

force = mass × acceleration

The information that we have from the question is that the force is 800 times 35.

Now, all we have to do is multiply 800 by 35, and we have our answer of 28,000 N.

I hope I helped, and a Brainliest is always appreciated! ☺

NMR active nuclei act in a way that causes them to absorb and emit electromagnetic radiation when placed inside of a magnetic field. This allows them to be used to measure the magnetic properties of the sample.

Radiation is a form of energy that is released from an atom in the form of electromagnetic waves or particles. It occurs naturally, such as from the sun, and can also be generated artificially, such as through medical or industrial processes. Radiation is all around us, and takes many forms. It can be either ionising or non-ionising radiation. Ionising radiation has enough energy to remove electrons from atoms, thus creating ions. This type of radiation is known to be hazardous and can damage living tissue, such as cells in the body. Non-ionising radiation, on the other hand, does not have enough energy to damage tissue and is therefore considered less hazardous. Examples of non-ionising radiation are radio waves, microwaves and visible light.

To learn more about radiation

https://brainly.com/question/1408043

#SPJ4

Answer:

3V

Explanation:

From the question given above, we can see clearly that the resistors are arranged in parallel connection. Hence, the same voltage will pass through the resistors i.e

Total voltage = voltage of 3 Ω = voltage of 6 Ω

From the question given above,

The total voltage = 3 V

Therefore,

Voltage of 3 Ω = total voltage

Voltage of 3 Ω = 3V

Thus, option 3 gives the correct answer to the question.

Number one 1.

The downward pull on the object is due to gravity. is the force that objects exert on each other because of their masses. You are familiar with the force of gravity between Earth and objects on Earth. Gravity is present not only between objects and Earth, however.

Number two 2

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force.

Answer:

1. gravitational pull

2.  force

Explanation:

In this estimation, the high gain sensor would measure approximately 100 samples in one time constant of the circuit.

To determine the number of samples the high gain sensor would measure in one time constant of the circuit, we need to consider the time constant of the circuit and the sampling rate of the high gain sensor.

The time constant (τ) of an RL circuit, which includes an inductor, is given by the equation:

τ = L / R

where L is the inductance and R is the resistance.

Since the circuit's time constant is not specified in the given information, we cannot calculate the exact number of samples. However, we can make an estimation based on general principles.

In an RL circuit, the time constant represents the time it takes for the current to rise or fall to approximately 63.2% of its final value. In other words, it is the time it takes for the inductor to respond to changes in voltage.

Assuming a typical value for the time constant, let's say 1 millisecond (0.001 seconds), we can estimate the number of samples the high gain sensor would measure in one time constant.

The sampling rate of the high gain sensor determines how many samples it takes per second. Let's assume a sampling rate of 100,000 samples per second (100,000 Hz) for the high gain sensor.

To calculate the number of samples in one time constant, we can multiply the time constant by the sampling rate:

Number of samples = Time constant  Sampling rate

Number of samples = 0.001 seconds * 100,000 samples/second

Number of samples = 100 samples

Learn more about circuit here :-

https://brainly.com/question/12608516

#SPJ11

The correct statements are that the elevator is an inertial frame of reference, it may be at rest, it may be moving at a constant velocity upward, and it may be moving at a constant velocity downward.

The correct statements about the elevator are:

i. The elevator is an inertial frame of reference.

ii. The elevator may be at rest.

iii. The elevator may be moving at a constant velocity upward.

iv. The elevator may be moving at a constant velocity downward.

An inertial frame of reference is a frame of reference in which Newton's first law of motion holds true. According to Newton's first law, an object at rest will remain at rest, and an object in motion will continue to move with a constant velocity unless acted upon by an external force.

In the given scenario, the tension in the string is equal to the force due to gravity on the load. This means that the load is in equilibrium, and no other forces are acting on it. From this information, we can deduce the following:

i. The elevator is an inertial frame of reference because the load is in equilibrium and not experiencing any net force.

ii. The elevator may be at rest because the tension in the string is equal to the force due to gravity, indicating that the load is not accelerating or moving vertically.

iii. The elevator may be moving at a constant velocity upward because the tension in the string is equal to the force due to gravity, suggesting that the elevator and the load are moving together without any net force.

iv. The elevator may be moving at a constant velocity downward for the same reason as stated in statement iii.

However, it's important to note that statement v is not correct. The elevator cannot be accelerating because in an accelerating elevator, there would be an additional force acting on the load, causing a difference in tension in the string compared to the force due to gravity.

Based on the information provided, the correct statements are that the elevator is an inertial frame of reference, it may be at rest, it may be moving at a constant velocity upward, and it may be moving at a constant velocity downward. However, the elevator cannot be accelerating since the tension in the string is equal to the force due to gravity on the load, indicating equilibrium and the absence of an additional net force.

To know more about inertial, visit:

https://brainly.com/question/1830739

#SPJ11

According to Boyle's Law, there is an inverse relationship between pressure and gas volume.

Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.

Boyle's Law is defined as the principle that explains the relationship between the volume and pressure of a gas at a constant temperature. It is formulated by Robert Boyle, an Irish physicist and chemist, in the 17th century. Boyle's Law states that the pressure of a given amount of gas is inversely proportional to its volume, provided the temperature remains constant.

Mathematically, it can be expressed as

P₁V₁ = P₂V₂,

where P₁ and V₁ are the initial pressure and volume of the gas, respectively, and P₂ and V₂ are the final pressure and volume of the gas. Therefore, option b. There is an inverse relationship between pressure and gas volume is the correct answer.

To Know more about Boyle's Law visit:

brainly.com/question/30367067

#SPJ11