A toy car with a mass of 2. 0-kg moves with a constant velocity of 20. 0 m/s. A net force of 6. 00 n is applied to the toy car in the direction of its motion for 4. 00 seconds. What is the final momentum of the toy car?.

Answer:

4.3

Explanation:

because 6.8 subtracted by 2.5 is 4.3

Given:

The angle of incidence is,

The refractive index of the crown glass for red light is,

The refractive index of the crown glass for blue light is,

To find:

The angle separating rays of the two colours in a piece of crown glass

Explanation:

We know, Snell's law,

For, the red light,

For, the blue light,

The separation between the refracted rays is,

Hence, the required separation is 0.1 degrees.

Answer:

200 N to the right

Explanation:

Answer:

B is the correct answer

Explanation:

Given

mj = 65 kg

mc = 78 kg

voj = 5.75 m/s

after collision

vfj = vfc = 0 m/s

Procedure

The law of momentum conservation can be stated as follows. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

The velocity before the collision would be 4.8m/s

The maximum transverse acceleration of a point on a wire is closest to 4.7*10³ m/s².

Calculation :

The maximum transverse acceleration ,

A = 3.7mm = 3.7*10⁻³ m

a=Aw²

w = 2πf

   =(2π)(570)

w   = 3.581*10³

w² = 12.826*10⁶

a = (3.7*10⁻³ m)(12.826*10⁶)

a = 4.7*10³ m/s².

In mechanics, acceleration is the price of exchange of an item's pace with appreciate to time. Acceleration is a vector quantity (as lengthy because it has magnitude and direction. The direction of an item's acceleration is given by means of the path of the net pressure performing on that object. As described in Newton's second law. the significance of an object's acceleration is the combined effect of two assets.

Acceleration inside the car's contemporary route of journey is known as linear (or tangential, within the case of circular movement) acceleration, and the passenger perceives that response as pushing returned into the seat. Acceleration acting while changing direction is called radial (or centripetal in the case of circular motion) acceleration, and passengers revel in the response as centrifugal pressure.

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Answer:

The main force in play here is weight W, or m*g (where m is Mass and g is Gravity) that make up the main force acting downwards. This could also be referred to as the normal force.

Explanation:

From what we can see the plastic strip is at a certain angle. To which other forces, such as: friction, pull and the ones mentioned above come into play in this question.

Electric potential in y direction (a) will be constant and in x direction (b) will decrease as you move in direction of the electric field.

The electric field E in a region is uniform if it is the same at all points. Specifically, if E has a magnitude of 5 V/m and points in the x direction, then we can say the following about the behavior of the electric potential:

a) In the y direction, the electric potential will be constant. This is because the electric field is perpendicular to the y direction, and therefore does not affect the electric potential in that direction.

b) In the x direction, the electric potential will decrease as you move in the direction of the electric field.

This is because the electric field is parallel to the x direction, and therefore affects the electric potential in that direction. Specifically, the electric potential will decrease by 5 V for every meter you move in the x direction.

To summarize, the electric potential will be constant in the y direction, and will decrease in the x direction as you move in the direction of the electric field. This is due to the fact that the electric field is uniform and points in the x direction.

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Answer: 5.8 m/s squared

Explanation: just got that question lol

Sure! Here are the steps for calculating the velocity and distance traveled by the car after 50 seconds :

Step 1: Calculate the velocity using the equation:

\(v = u + at\)

where:

- \(v\) is the final velocity

- \(u\) is the initial velocity (0 m/s, as the car starts from rest)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(v = 0 + (3 \, \text{m/s²}) \times (50 \, \text{s})\)

Step 2: Calculate the distance traveled using the equation:

\(s = ut + \frac{1}{2}at^2\)

where:

- \(s\) is the distance traveled

- \(u\) is the initial velocity (0 m/s)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(s = 0 \times (50 \, \text{s}) + \frac{1}{2} \times (3 \, \text{m/s²}) \times (50 \, \text{s})^2\)

Now, let's simplify these equations:

\(v = 3 \times 50\)

\(s = \frac{1}{2} \times 3 \times 50^2\)

Calculating the results:

\(v = 150\) m/s

\(s = 3750\) meters

Therefore, after 50 seconds, the car will have a velocity of 150 m/s and would have traveled a distance of 3750 meters.

The speed of an 8.7m ev proton is v = 4.1 x 107 m/s.

Kinetic energy is defined as the energy that is produced by an object due to its motion. When an object is set to acceleration, there is a definite need to apply certain forces. The application of force needs work, and after the work is done, the energy gets transferred to the object making it move at a constant velocity.

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity:

  k = 1/2 mv2

  m = 1.7 x 10-27 Kg

  v = √2k/m

  v = √(2x8.7x106x16x10-19 )/1.7x10-27

  v = 4.1 x 107 m/s

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Answer:

Se obtienen 2,27 gramos de metanol.

Explanation:

La reacción entre monóxido de carbono e hidrógeno para producir metanol es la siguiente:

CO + 2H₂ → CH₃OH  

Para encontrar el reactivo limitante y el reactivo en exceso, debemos calcular el número de moles de CO y H₂:

\(\eta_{CO} = \frac{m}{M} \)              

En donde:    

m: es la masa

M: es el peso molecular  

\(\eta_{CO} = \frac{m}{M_{CO}} = \frac{2,0 g}{28,01 g/mol} = 0,071 moles \)

\(\eta_{H_{2}} = \frac{2,0 g}{2,02 g/mol} = 0,99 moles \)

Dado que la relación estequiométrica entre CO y H₂ es 1:2, el número de moles de hidrógeno gaseoso que reaccionan con el monóxido de carbono es:

\( \eta_{H_{2}} = \frac{2}{1}*0,071 = 0,142 moles \)      

Entonces, se necesitan 0,142 moles de H₂ para reaccionar con 0,071 moles de CO y debido a que se tienen más moles de H₂ (0,99 moles) entonces el reactivo limitante es CO y el reactivo en exceso es H₂.

Ahora podemos encontar la masa de metanol obtenida usando el reactivo limitante (CO) y sabiendo que la realcion estequiométrica entre CO y CH₃OH es 1:1.    

\( \eta_{CH_{3}OH} = \eta_{CO} = 0,071 moles \)

\( m = 0,071 moles*32,04 g/mol = 2,27 g \)

Por lo tanto, se obtienen 2,27 gramos de metanol.

Espero que te sea de utilidad!      

Answer:

Thermal Energy. Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules. The atoms and/or molecules of a hotter object have greater kinetic energy than those of a colder one, in the form of vibrational, rotational, or, in the case of a gas, translational motion.

Explanation:

Answer:

Wtens = (20 N) * (5 m) * cos (0 deg) = +100 Joules

Wgrav = (20 N) * (5 m) * cos (180 deg) = -100 Joules

Wapp= (10 N) * (5 m) *cos (0 degrees) = +50 Joules

Wfrict =(10 N) * (5 m) * cos (180 degrees) = -50 Joules

Wapp = (10 N) * (5 m) * cos (0 deg) = +50 Joules

Wfrict = (10 N) * (5 m) * cos (180 deg) = -50 Joules

Explanation:

Apply the work equation to determine the amount of work done by the applied force in each of the three situations described below.

The element of the discrete sequence corresponding to the function f(t) = t with k = 3 and t = 6.5 seconds is 19.5 seconds (rounded to the nearest first decimal place).

To find the element of the discrete sequence corresponding to the function and t = 6.5 seconds, we can substitute the given value of t into the function and multiply it by the value of k.

f(t) = t

f(6.5) = 6.5

Now, multiply the result by k = 3:

Element = 6.5 * 3 = 19.5

Therefore, the element of the discrete sequence corresponding to the function f(t) = t with k = 3 and t = 6.5 seconds is 19.5 seconds (rounded to the nearest first decimal place).

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Answer:

30mL FAX

Explanation:

Answer:

stress tension tensile strength

Explanation:

The maximum stress which a material can withstand when it is pulled apart is its: stress tension tensile strength.

Answer:

When an acid and a base are placed together, they react to neutralize the acid and base properties, producing a salt.

Explanation:

(1) The force of gravity between the Earth and the satellite is 8.91 * 10^6 N.

(2)  The orbital period of the satellite is 6,132 seconds i.e. 1 hour and 42 minutes.

(3) The tangential velocity required to keep the satellite in orbit is approximately 7.94 km/s.

(4) The angular velocity of the satellite is 0.0011 radians per second.

(1)  The force of gravity between two objects can be calculated using Newton's law of universal gravitation. The formula is F = (G * m1 * m2) / \(r^2\), where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers. In this case, the mass of the Earth is much larger than the mass of the satellite, so we can consider the satellite's mass negligible compared to the Earth's mass. Plugging in the values, we get\(F = (6.67 \times 10^{-11} N m^2/kg^2) \times (5.97 \times 10^{24} kg) \times (900 kg) / (6,371,000 m)^2 = 8.91 \times 10^6 \ Newtons\)

(2) The orbital period of a satellite can be determined using Kepler's third law of planetary motion, which states that the square of the orbital period is proportional to the cube of the semi-major axis of the orbit. Since the satellite is orbiting at a radius equal to one Earth radius above the surface, the semi-major axis is the sum of the Earth's radius and the altitude of the satellite. Using the formula \(T = 2\pi \times\sqrt{(a^3 / (G \times M)}\), where T is the orbital period, a is the semi-major axis, G is the gravitational constant, and M is the mass of the Earth, we can calculate the value. Plugging in the values, we get \(T = 2\pi \times\sqrt{6,371,000}\) meters +\((6,371,000 \ m)^3 / (6.67 \times 10^{-11} N m^2/kg^2 \times 5.97 \times 10^{24} kg)\) = 6,132 seconds.

(3) The tangential velocity required to keep a satellite in orbit can be determined using the formula \(v = \sqrt{G \times M / r\) where v is the tangential velocity, G is the gravitational constant, M is the mass of the Earth, and r is the distance between the center of the Earth and the satellite. Plugging in the values, we get v = √((6.67 x 10^-11 N m^2/kg^2 * 5.97 x 10^24 kg) / \(v = \sqrt{\frac{(6.67 \times 10^{-11} N m^2/kg^2 \times 5.97 \times 10^{24} kg) }{(6,371,000 m + 6,371,000 m)}\)) = 7,906 m/sec.

(4) The angular velocity of a satellite in orbit can be calculated using the formula ω = v / r, where ω is the angular velocity, v is the tangential velocity, and r is the distance between the center of the Earth and the satellite. Plugging in the values, we get ω = 7,906 meters per second / (6,371,000 meters + 6,371,000 meters) = 0.0011 radians per second.

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When the temperature of the plate is raised to 520.0°C, there will be a change in the width of the central maximum. This change occurs due to the phenomenon of thermal expansion, which causes the dimensions of the plate to increase with temperature. The resulting increase in size leads to a wider central maximum in the interference pattern.

When the temperature of an object increases, it undergoes thermal expansion, which means its dimensions expand or increase. This expansion is a result of the increased kinetic energy of the particles within the object, causing them to vibrate more vigorously and occupy a larger space. In the case of the plate, when it is heated to 520.0°C, it will experience thermal expansion, causing an increase in its size.

The change in the width of the central maximum of the interference pattern is a consequence of this thermal expansion. The central maximum is formed by the constructive interference of light waves passing through adjacent slits or openings. As the plate expands with the temperature rise, the distance between the slits or openings also increases. This increase in separation leads to a wider central maximum in the interference pattern.

In summary, raising the temperature of the plate to 520.0°C will result in an expansion of the plate due to thermal expansion. This expansion leads to an increase in the distance between the slits or openings, causing a wider central maximum in the interference pattern.

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Answer:

F = 987600 N

Explanation:

Force Equation

F=ma

Newton's second law states that force is proportional to what is required for an object of constant mass to change its velocity. This is equal to that object's mass multiplied by its acceleration. We use Newtons, kilograms, and meters per second squared as our default units, although any appropriate units for mass (grams, ounces, etc.) or velocity (miles per hour per second, millimeters per second2, etc.) could certainly be used as well - the calculation is the same regardless.

Solve

F = m * a

F = 100 kg * 9876 m/s2

F = 987600 N

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

After 2018 years, the sample of C-14 contains approximately \(1.46 \times 10^{19}\) atoms.

The decay of C-14 is a first-order process, which means that the rate of decay is proportional to the number of radioactive atoms present. The mathematical expression for radioactive decay is:

\(N(t) = N0 \times e^{(-kt)}\)

where:

N(t) = the number of radioactive atoms at time t

N0 = the initial number of radioactive atoms

k = the decay constant (which is related to the half-life as ln(2)/t1/2)

t = time elapsed

We can first find the decay constant (k) using the half-life (t1/2) of C-14:

k = ln(2) / t1/2 = ln(2) / 5730 years = \(1.21 \times 10^{-4} years^{-1}\)

Now we can use this value of k to find the number of C-14 atoms remaining after 2018 years:

\(N(2018) = N0 \times e^{(-kt)} \\N(2018) = (2.70 \times 10^{19} ) \times e^{(-1.21 \times 10^-4 years^{-1} \times 2018 years)} \\N(2018) = 1.46 \times 10^{19} atoms\)

Therefore, after 2018 years, the sample of C-14 contains approximately \(1.46 \times 10^{19}\) atoms.

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Hi there!

\(\large\boxed{ -6.36m/s}\)

Use the equation:

\(v_{2} = -\frac{m_{1}}{m_{2}} v_{1}\)

Where m2 and v2 deal with the larger object, and m1 and v1 with the smaller object. Plug in the given values:

v2 = ?

m1 = 0.048 kg (converted)

m2 = 2.95

v1 = 391

\(v_{2} = -\frac{0.048}{2.95} *391\)

\(v_{2} = -6.36m/s\)

Answer:

bc we play when we are bored and some people use it as a tradition to play on thanksgiving

The speed is  100 Km/hr.

In physics, speed is a scalar quantity that describes how fast an object is moving. It is defined as the rate of change of distance with respect to time and is typically measured in meters per second (m/s) or other units of distance per time.

The formula for speed is:

Speed = distance traveled / time taken

We know that;

The time can be converted into hours as 45 minutes = 0.75 hours

Speed = 75 Km/0.75 hours

Speed = 100 Km/hr

Speed can also be described as the magnitude of velocity, which is a vector quantity that includes both speed and direction.

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Answer:A 1000 kg car and a 2000 kg truck have the same momentum when the car is travelling at twice the speed of the truck, i.e. 38 m/s.

When a 1000kg car and a 2000kg truck have the same momentum, the speed of 1000 kg car is twice that of the  2000kg truck.

The product of a particle's mass and velocity is its momentum. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force applied on a particle is equal to the time rate of change of momentum.

As  a 1000kg car and a 2000kg truck have the same momentum,

1000 kg × v₁ = 2000 kg × v₂

v₁ = 2v₂

Hence, the speed of 1000 kg car is twice that of the  2000kg truck.

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Answer:

The current would increase.

Explanation:

The current would increase. 10. The relationship between resistance and current in a circuit is that the greater the resistance the less the current and the greater the current the less the resistance is.

if a 1.5-volt battery is removed and placed by a 9-volt battery in a circuit, From Ohm's law we can say that the current flow inside the circuit will increase because the voltage increases (resistance remains constant).

Ohm's Law is a fundamental law of physics that describes the relationship between the three basic electrical quantities: voltage, current, and resistance in a circuit.

It states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. Mathematically, Ohm's Law is expressed as:

V = I x R

Where:

V = the voltage or potential difference between two points in the circuit,       measured in volts (V).

I = the current flowing through the circuit, measured in amperes (A).

R = the resistance of the conductor, measured in ohms (Ω).

In other words, the voltage (V) across a circuit component is equal to the product of the current (I) flowing through the component and its resistance (R). This law is applicable to both DC (direct current) and AC (alternating current) circuits, as long as the resistance is constant.

Ohm's Law can be used to calculate any one of the three variables if the other two are known. For example, if the voltage and resistance in a circuit are known, the current flowing through the circuit can be calculated using the formula:

I = V / R

Here in the question,

The current in a circuit is determined by the resistance of the circuit and the voltage applied to it, according to Ohm's Law. If a 9-volt battery replaces a 1.5-volt battery, the voltage applied to the circuit will increase, which may cause an increase in the current flowing through the circuit if the resistance remains the same.

However, the increase in voltage may also cause an increase in the heat generated by the circuit, which could potentially damage the components or cause a safety hazard. Therefore, it is important to ensure that the components in the circuit can handle the higher voltage before replacing the battery.

It's also important to note that the current may also depend on the internal resistance of the batteries. A 9-volt battery typically has a lower internal resistance than a 1.5-volt battery, which means it can supply more current to the circuit. So, even if the resistance of the circuit remains the same, the current may still increase due to the higher voltage and lower internal resistance of the 9-volt battery.

Hence, The current flowing through the circuit increased when we removed a 1.5-volt battery and replaced it with a 9-volt battery.

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Collected data plays a crucial role in evaluating whether the criteria for success have been met. By analyzing the collected data, one can assess the progress made towards achieving the desired goals and determine if the criteria have been fulfilled.

Data provides an objective measure of performance or outcomes, allowing for an evidence-based assessment of success. It helps to quantify and track key metrics or indicators related to the criteria for success. By comparing the actual data with the predetermined benchmarks or targets, one can determine if the criteria have been met or if further improvements are required.

Data analysis also enables the identification of trends, patterns, and correlations, providing insights into the factors influencing success. It helps in identifying areas of strength and areas that need improvement. Additionally, data can be used for comparative analysis, benchmarking against previous periods or similar projects, to gain a broader perspective on success.

In summary, collected data provides an objective basis for evaluating progress and success by comparing actual performance against predetermined criteria, identifying areas of improvement, and gaining insights for future decision-making.

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