a capacitor and a resistor are connected in parallel to a 120-v, 60-hz line. the resistor has a resistance of 40 , and the capacitor has a capacitance of 132.6 f. what is the impedance of the circuit in the question?

The frictional force due to sliding.

What is frictional force?

Frictional force is the force produced when two surfaces slide against and touch each other. The surface texture and amount of force needing them together have the biggest an impact on these forces. The amount of frictional force is influenced by the object's position and angle.

Two forces are applied to the block as it moves up a ramp; the first is the weight component, and the second is the frictional force from sliding.

The weight and frictional forces that are pulling the block up are parallel to one another. These forces are directed downward toward the plane, which results in a stronger force and acceleration.

The components of weight and frictional force are moving in the opposite directions as the block down the ramp. The upward direction is where the frictional force operates.

Since the force's magnitude is small as a result of the opposite directions, the acceleration will also be smaller. As a result, the acceleration on the descent is lower than on the rise.

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Answer:

Cellular respiration involves the complete breakdown of glucose in presence of oxygen gas to yield carbon dioxide ,water , and energy in the form of atp

We have:

vi = initial speed = 4 m/s

vf = final speed = 25 m/s

t= time = 5 s

a = acceleration = ?

Apply:

Replace with the values given:

Answer: 4.2 m/s^2

The Acceleration of the car is 4.2 m/s.

We will use the formula of acceleration.

a = vu - vi / t

Given:

vi = initial speed = 4 m/s

vu = final speed = 25 m/s

t= time = 5 s

a = acceleration = ?

Now, we will put the given values in the formula,

a = vu - vi / t

a = 25 - 4 / 5

a = 21 / 5

a = 4.2 m/s

Therefore, the Acceleration of the car is 4.2 m/s.

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The distance travelled by the car and the velocity of the car, both will increase weather the mass increases or not.

Let us say that there is a horizontal surface inclined at an angle A, the acceleration is g(acceleration due to gravity) and the car is going down the inclined.

Let us say that the mass M of the car is increasing constantly.

Now, we know, because the inclined is at an angle, so the component of g that will be in the direction of the motions is gsinA.

This component of acceleration not going to change, so the acceleration is now constant.

As there is some acceleration, that too in the direction of the motion, so the velocity of the car will increase constantly regardless of the mass until it reaches the final maximum value.

Because the velocity of the car is increasing so obviously the distance will also increase.

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The acceleration of this jet is equal to: C. 6.26 m/s².

In Physics, the acceleration of a physical object (jet) or body can be calculated by using this formula:

a = (V - U)/t

Where:  

Substituting the given parameters into the formula, we have;

Acceleration, a = (432.8 m/s - 138.5 m/s)/47 seconds

Acceleration, a = 294.3/47

Acceleration, a = 6.26 m/s².

In conclusion, we can logically deduce that this jet has an acceleration of 6.26 meters per seconds square (m/s²).

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Answer:

7+z / 2

z = 10

replace the value of z

7 +10 /2

use order of operations ( division comes before addition)

7+5 = 12

Explanation: 12

Force on the truck is 3402N .

An item having mass changes its velocity when it is pushed or pulled. 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.

We are given that,

Mass of the car = m = 800 kg

Mass of the truck = m = 2100kg

The car exerted the force on the ground = F = 4700N

The total mass of the car and truck = 800kg + 2100kg = 2900kg

According to Newton's second law of motion,

F = ma

Where, a is total acceleration of the system, m is total mass of the system and F is the total force on the system,

a = F/m

a = 4700N/ 2900kg

a = 1.62 m/s²

The product of this acceleration and the car's mass will determine the force on the truck acting alone. Since force on the truck can be calculated as,

F = ma

Where, F is force on the truck and m is the mass of truck and a is acceleration of the system. After putting the above value we can get,

Ft = 2100kg × 1.62m/s²

Ft = 3402 N

Thus, Force on the truck would be 3402N.

Force on the car the force from the truck will be equal to it but act in the other direction .

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According to question, we know that

ux=ucosθax=0

uy=usinθay=−g

The projectile's maximum height h is equal to one-half of H, the triangle's altitude. = H - 12H, resulting in h = H/2, which is the desired result. If a projectile's maximum height is 15 m, its maximum range is 4 * max height, which equals 60 m.

The highest point of the structure or sign measured from the average natural ground level at the base of the supporting structure is referred to as the maximum height.

at max. height

Vy=0

0- usinФ = gt

t = usinФ/g

Now, we know that

H = ut + 1/2g[tex]t^{2}[/tex]

After putting all the values, we get

H(max) = [tex]u^{2} sin^{2}[/tex]Ф/2g

Hence proved

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The soil we can carry with this wheelbarrow is 227.5 Netwon weight.

Mechanical advantage is a measure of the ratio of output pressure to enter pressure in a system, used to investigate the forces in simple machines like levers and pulleys. notwithstanding converting the forces which might be implemented the conservation of power continues to be authentic and the output energy remains identical to the enter strength.

The mechanical benefit is a measure of the pressure amplification carried out by using using a device, mechanical device, or system machine. The tool trades off enter forces in opposition to the motion to attain a desired amplification within the output force. The model for that is the law of the lever.

Mechanical advantage = load / effort

given mechanical advantage = 3.5

effort =-65 N

Load = mechanical advantage effort

           = 3.5 65

           = 227.5 Netwon

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Answer:

deflate tyres, rock your vehicle forwards and backwards, use traction

Explanation:

1. When egg hits the ground with a force, the ground exerts the same force back on the egg. The faster the egg falls, greater is this force is. If extreme force is delivered to the egg shell, it will crack. When the egg is dropped, speed increases as it falls, and as speed goes up, it gains momentum from the impulse caused by gravity. When it hits the floor, it stops due to an impulse in the opposite direction.

2. Structure of lander:

3. Reasons that design would allow safe landing of egg:

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The velocity in the x direction is 26 m/s minimum horizontal speed.

Were asked to find the speed in the x (horizontal) direction which can be acquired from

x = vxt or vx = x/t.

We know x (15.4 m) but we need to find t.

We can find how long it takes for gravity to force the ball down from the initial height (tennis racket) to the final height (top of net) from y = yo + vot + 1/2 at2.

We'll choose y to be positive up.

The initial height yo = 2.6 m, final height y = 0.90 m, the initial velocity in the y direction is zero

vo = 0, and

a = -g (since y is positive up, gravity is downward and negative,

-g = -9.8 m/s2).

We have:0.90m = 2.6 m - 4.9 m/s2 * t2 4.9 m/s2 * t2

= 1.7 mt = ± [ 1.7 m / 4.9 m/s2 ]1/2t

= ± 0.6 s (choose + s)

Therefore, The velocity in the x direction: vx = 15.4 m / 0.6 s = 26 m/s minimum horizontal speed.

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The strength of the magnetic field is 4x10^-2 T

What is Magnetic Field?

A magnetic field is a vector field that describes the magnetic influence on moving charges, currents, and magnetic materials. A moving charge in a magnetic field is subjected to a force that is perpendicular to both its own velocity and the magnetic field.

Magnetic field at O due to wire 1,  B1 = UoI1/2pid;

where d = 5 cm

B1 = u0(10)/2pi(5)

Magnetic field at O due to wire 2,

B2 = uo I2/2pid

B2 = u0(5)/2pi(5)

The net magnetic field at O Bo = B2-B1

uo(10-5)/2pi(5)

B0 = (4pi x10^-7)(5)/2pi(5)

= 4x10^-2 T.
Therefore the answer is 4x10^-2 T

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Short-circuit evaluation is only performed with the AND and OR operators.

Therefore, the given statement is False.

Short-circuit evaluation is another function of the logical OR operator; if the left-hand operand is true, the right-hand expression is not tested. The Boolean AND and OR operators short-circuit evaluate; that is, they only evaluate the expression to the right of the operator when it is required to ascertain the expression's final outcome. Short-circuit operators establish a sequence point because they fully assess the first argument, including any side effects, before (optionally) processing the second argument in imperative languages (particularly C and C++), where side effects are significant.

A programming concept known as short-circuiting allows the compiler to omit some logical expression sub-expressions execution or evaluation. As soon as the expression's value is established, the compiler halts evaluating the following subexpressions.

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The new speed with respect to the ground is 512 m/h.

We can tell that is speed is the rate at which the velocity changes with respect to time. In this case, we can see that the jet airliner moving initially at 103 mph (with respect to the ground) to the east moves into a region where the wind is blowing at 441 mph in a direction 19° north of east.

Hence;

→ The east component =  103 + 441 cos(52) = 375 m/h

→ The north component = 441 sin(52) = 348  m/h

We can now get the new velocity by the use of;

√( 375)^2 + (348)^2 =

= 512 m/h

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The velocity of the car travelling at 15 m/s for 10 second speeding up with constant acceleration of 2m/s^2 for 15 second is 45 m/s.

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Answer:  By multiplying mass by velocity

Explanation:  By multiplying mass by velocity

According to the given statement The induced voltage opposing this is 3.60 V.

Electrons transport electrical energy through conducting materials (like power lines). The voltage of the transmission line gauges the amount of potential energy that each electron is transporting along the power line. Voltage, in other terms, is the force that forces current through the electrical supply network.

Magnitude of change in current, dI = 4.00 A as current reduces to zero

Inductance of the inductor, L = 7.50 mh = 7.50 *10⁻³

Time elapsed dt = 8.33 ms = 8.33 * 10⁻³

The induced emf is given by replacing the specified values with:

[tex]\epsilon=L \frac{d I}{d t}[/tex]

=7.50 *10⁻³H * (4.00 A / 8.33 * 10⁻³)

= 3.60 V

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The velocity of the two wagons after the collision can be calculated using the principle of momentum conservation.

Only one of the wagons is moving in this scenario prior to the accident. We also assume that following the impact, the wagons lock together.

According to the rule of conservation of momentum, absent an external force, the combined momentum of a number of bodies operating upon one another in an isolated system remains constant. As a result, momentum cannot be gained or lost.

The conservation of momentum is a general law of physics which states that the total momentum of the system remains constant and that the quantity called momentum which characterizes motion never varies in an isolated collection of objects.

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Answer:

Volume of buoy = 1.09 m^3

Volume of seawater displaced = 1.09 m^3

Mass of seawater displaced = 1.09 m^3 * 1025 kg/m*3 = 1117 kg

Mass of buoy = 803 kg

Net mass = 1117 - 803 = 314 kg         Mass supported by cable

Net force on cable F = M a = 314 kg * 9.80 m / s^2 = 3077 N

The price floor benefits farmers as price floor would provides some security in agricultural income.

What is price floor?

The lowest permitted price that can be paid in marketplaces for commodities and services, labor, or financial capital is known as a price floor. The minimum wage, which is founded on the normative idea that someone performing a full-time job should be able to afford a basic level of living, is maybe the best-known example of a price floor.

Price floors raise the price above the equilibrium price, which generates surpluses. The quantity delivered surpasses the quantity demanded at the price determined by the floor. Price floors in agriculture have led to enduring surpluses of a variety of agricultural goods.

For farmers these price floors thus give them a sense of financial security that all of their crops will atleast get that minimum price and thus he will be able to earn some money.

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Answer:

F = 64655.86 N

Explanation:

Im not sure about the initial velocity but its somewhere near 0.23 m/s

The magnitude of work input during this process is - 73.62 kJ

It is Given that

In a gas-tight, friction-free piston cylinder, 1.5 kg of air at 120 kPa and 24 °C is housed. This final pressure of 600 kPa is reached for the air. Heat is transferred from the air during the procedure, maintaining a consistent temperature inside the cylinder.

We have to Calculate the work input during this process.

Assuming air is an ideal gas at constant temperature, the ideal gas equation will be

P = mRT/V

Now mRT is constant at constant temperature, the equation for work will be V2

W = ∫ path P dv

= v1 ∫v1 to v2 mRT / Vdv

= ∫ v1 to v2 dV/V

= mRT (log V) v1 to v2

= mRT (log V2/V1)

We need to find V2/V1 for constant temperature

So V2/V1 mRT / P2/mRT/P1

V2/V1 mRT / P2/mRT/P1 = P1/ P2

Substituting P1/P2 in V2/V1 using gas constant for air = 0.2870,

So m = 1.5 kg

T = 24 degree Celsius = 285.15 K

So W = mRT log(P1/P2)

= 1.5 kg x 0.2870 kJ/kg K x 285.15 K log (120 kpa / 600 kpa)

= - 73.62 kJ

The negative sign implies that it is a work input of - 73.62 KJ

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The mass of the object if the acceleration of a mass is 15 m/s^2 to the left is 1.27 kg

F = F1 + F2 + F3

F1 = - 8 N

F2 = 7 N

F3 = - 18 N

F = - 8 + 7 - 18

F = - 19 N

Negative symbol indicates that the force is acting towards the left.

F = m a

F = Force

m = Mass

a = Acceleration

a = - 15 m / s²

m = F / a

m = - 19 / - 15

m = 1.27 kg

Therefore, the mass of the object is 1.27 kg

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Answer:

20n

Explanation:

20 n

Copper has 2 isotopes Cu-63 and Cu-65. Cu-63 has an abundance of 69.15% while Cu-65 has an abundance of 30.85%, then the average atomic mass of the copper would be  63.167 grams.

It is the sum of the mass of all the protons as well as the neutrons that are present inside the nucleus.

Atomic mass = mass of protons + mass of neutrons

As given in the problem Copper has 2 isotopes Cu-63 and Cu-65. Cu-63 has an abundance of 69.15% while Cu-65 has an abundance of 30.85%.

The average atomic mass of the copper = 63*0.6915 +65*0.3085

                                                                    =63.167 grams

Thus, the average atomic mass of copper would be 63.167 grams.

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The external force with a horizontal component will not act on the cart's man and the sum of the vertical forces is zero, so the system's total momentum is conserved.

What is external force?

External forces are those that come from how the body interacts with its surroundings.

There are contact forces and non-contact forces that come from the outside. Most of the forces used in biomechanics are contact forces. Contact forces are forces that happen when two things touch each other. Non-contact force happens when two things are not in direct with each other e.g., gravitational force

What is momentum?

Momentum is the product of a particle's mass and speed. Momentum is a "vector quantity," which means that it has both size and direction.

Let mc be the mass of the cart, ν  be its initial velocity, and νc be its final velocity (after the man jumps off). Let mm be the mass of the man. His initial velocity is the same as that of the cart and his final velocity is zero. Conservation of momentum yields (mm+mc) ν = mcνc. Consecutively the final speed of the cart is:

vc = v(mm+mc)/mc = (2.3m/s)(75kg+39kg)/39kg) = 6.7m/s

Hence, the cart goes faster by 6.7m/s–2.3m/s, which is +4.4m/s. To slow himself, the man causes the cart to push him backward by pushing forward on it, so the cart speeds up

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time of flight of the book is 0.38 seconds and the range of the book is 1.35 meters, and the final velocity of the book is 5.4 m/s

What is projectile motion?

The path followed by a projectile is known as projectile motion, when we throw any object in the air it follows a certain trajectory and that trajectory is known as projectile motion.

What is the time of flight?

Every projectile remains in the air for a certain period of time the amount of time the projectile space in the air is known as time of flight for the same velocity with different angles the time of flight can vary.

given:

initial velocity in y axis = 3.5m/s

initial velocity in x axis = 0 m/s

height of the disk = 75 m

acceleration due the gravity 10 m/s²

range of the projectile = velocity in y direction × time of flight

so first we will deduce time of flight,

time of flight for both the motion in x axis and y axis is the same therefore, we will find the time of flight in x axis.

using newtons second law of motion we get,

s = u × t + 0.5 × a × t²

here,

s is the displacement in x axis

u is the initial velocity

t is the time of flight

a is acceleration due to gravity

substituting value on newtons second law of motion we get,

0.75 = 0 + 0.5 × 10 × t²

t² = 0.15

t = 0.38 seconds

therefore, the time of flight is 0.38 seconds

range of the book = velocity in y direction × time of flight

range of the book = 3.5 × 0.38

range of the book = 1.35 meters

velocity of the book as it touches the ground = 10 × 0.38 × 1.41

velocity of the book as it touches the ground = 3.8 × 1.41 m/s

velocity of the book as it touches the ground = 5.4 m/s

therefore, time of flight of the book is 0.38 seconds and the range of the book is 1.35 meters, and the final velocity of the book is 5.4 m/s

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