The vertical component of the acceleration of a sailplane is zero when the air pushes up against its wings with a lift force of 4.00 kN. a. Assume that the only forces on the sailplane are that due to gravity and that due to the air pushing up against its wings. What will be the gravitational force on Earth due to the sailplane? If the force acting is in upward direction, enter a positive value and if the force acting is in downward direction, enter a negative value. (answer in kN) b. If the wing stalls and the upward force decreases to 1.71 kN, what is the acceleration of the sailplane? If the acceleration is upward, enter a positive value and if the acceleration is downward, enter a negative value answer in m/s^2

Q: It is observed that a photon must have an energy of at least 23 eV in order to excite a certain…

A:

Q: (a) What is the total charge (in C) of 7.4× 10-⁹ electrons? [note: mass of an electron = 9.11x10-31…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: climbing a vertical rope is difficult. you have to lift your full body weight with your arms. if…

A:

Q: A container holds 0.510 m3 of oxygen at an absolute pressure of 3.10 atm. A valve is opened,…

A: Boyles Law: The volume of a gas at constant temperature varies inversely with the pressure.…

Q: A farmer had to remove a field of pulpwood trees because of Moore's Law. How would you use systems…

A: In this question we have to explain how the farmer would remove a field of pulpwood trees. Please…

Q: A 149.6-g sample of a metal at 74.4°C is added to 149.6 g H₂O at 15.4°C. The temperature of the…

A:

Q: An 80 kg man is jogging at a velocity of 4 m/s. What is his kinetic energy?

A: given data :- mass m = 80 kg velocity/speed v = 4 m/s

Q: What are the two forces that make a star stable, and using these two ideas, what Mummon happens in…

A: Asked: 1. What are the two forces which operate in the stars, which make them stable?  2. What…

Q: Three objects of mass 2.5 kg each were placed. At the vertices of a right- angled triangle whose…

A:

Q: The weight of a body is 160 N. What is it's mass? Given g = 10 m/s²

A: Introduction :   In this question we are provided it value of  weight of the body and gravitational…

Q: An electric heater is rated 2.5 kW. how much energy does it use in 12 hours.

A: Given that, Power of electric heater (P)= 2.5 kW Or,   P= 2.5× 10³ W Total time(t)= 12 hours t= 12×…

Q: Part A: 1180 Btu/hr heat is conducted through a section of insulating material shown in Figure that…

A:

Q: Which of the following statements is/are correct? A. The equipotential at a point equidistant from…

A: The points in an electric field of a charge or combination charges that have equal potentials are…

Q: A particle of charge -0.8 µC is located at the end of a spring at some equilibrium position (left…

A:

Q: Find speed of train Distance-500 km Time=5 hr

A: Given data : Distance=d Time=t   To find : Speed

Q: An object dropped from a cliff falls with a constant acceleration of 13 m/8². Find its speed 5.58…

A: Introduction :  In this question we are provided it value of  initial velocity , acceleration and…

Q: An object is placed 20 cm in front of a convex mirror as shown below. What focal length should the…

A: Given  position of object (u)=-20 cm magnification(m) = +0.33 Required focal length (f)=?

Q: How does the frequency of the sound

A: Given;   Define how the frequency of the sound given by a stretched  string depends on its:  a.…

Q: A car starts from rest and reaches a speed of 12 m/s after travelling with uniform acceleration for…

A: Introduction :  In this question we are provided it value of final velocity , initial velocity and…

Q: QUESTION 4 If you know that xFx₁+vit+0.5at2 and vfvi+at Based on the two equations…

A:

Q: A Si sample is doped with 1016 Arsenic atoms/cm³. Find the Displacement of EF relative to Eat T-77…

A:

Q: How much centripetal force is needed to make a body of 0.8 kg to move in a circle of radius 0-6 m…

A: Introduction :   In this question we are provided it value of mass of the body, radius of the circle…

Q: A metal sphere mounted on an insulating rod carries a charge of 6 nC when its potential is 200 V…

A: Given : Q = 6 nC = 6 × 10-9 C V = 200 V

Q: Potential difference between two points of a wire carrying 38 ampere current is 5 volt. Calculate…

A:

Q: A gas absorbs 50. kJ of heat and does 25 kJ of work. Calculate AE. AE= k]

A:

Q: Part A: A chunk of metal with a mass of 265.5 g at 76.2°C is placed in 0.108 kg of water initially…

A:

Q: Question 7 of 22 A researcher initially has 10 grams of a particular radioactive isotope. After 14…

A:

Q: A child whose weight is 287 N slides down a 6.60 m playground slide that makes an angle of 34.0°…

A: Given: The weight of the child: W = 287 N. The distance along the slide: d = 6.60 m. The angle the…

Q: What is the density of a substance of mass 140 g and volume 12 cm³.

A: Introduction :   In this question we are provided it mass and volume , with these data we have to…

Q: If in a box with infinite walls of size 1 nm there is an electron in the energy state n=2, find its…

A: Size of the box of infinite well = L = 1nm = 10-9m Energy state  = n = 2 Particle in the box =…

Q: The ideal battery shown in the circuit below has a voltage = 20 V. The capacitors have values C₁ = 4…

A:

Q: The intensity of the refracted ray when light travels from an optically denser medium to a less…

A:

Q: Find final velocity Initial velocity=0.2 m/s Acceleration=10 m/s2 Time=2 s

A:

Q: The distance of point A from a source of wave is 1/5 that of point B. Find the ratio of the…

A: Let distance from point A to source is x and that of point B is 5x.

Q: Imagine you have a body at rest on a surface that exerts a friction force F₁ = - 5 N to the left. If…

A: Draw the free-body diagram of the body.

Q: What is the meaning of photon scattering on an electron in relation to the Compton effect?

A: Compton effect: comton effect is a phenomenon in elctromagnetic radiation where incident photon hits…

Q: In a crystal of salt, an atom of Na transfer an electron to Cl formed an ionic bond. The resulting…

A: Electrostatic force is fundamental force. It depends on 2 charges and distance between them. Force…

Q: An electric heater is rated 2.5 kW. how much energy does it use in 12 hours.

A: Introduction :  In this question we are provided it value of time and power . With these data we…

Q: The front 1.20 m of a 1,200-kg car is designed as a "crumple zone" that collapses to absorb the…

A:

Q: Before a piece of X- ray wavelength scattered by a piece of carbon at a right angle, then analyzed…

A:

Q: QUESTION 1 The standard unit of momentum and impulse is the N.s O True O False QUESTION 3 Impulse is…

A: Question 1 The stander unit of momentun and impulse is the N.s. its  true . We know impulse  N.s=…

Q: A fixed spring (300 N/m) is attached to a horizontal position. If the spring is compressed from its…

A:

Q: QUESTION 18 The stress-strain graphs for materials A and B are shown below. The graphs are drawn to…

A: Given : Stress - Strain graphs for materials A and B

Q: A projectile is lauched from the ground level with an velocity of v ^0 feet per second. Neglecting…

A:

Q: Calculate the ambipolar diffusion coefficient of intrinsic Ge at 350 K. p/p-2.1, -3900 cm² V-ls-¹. O…

A:

Q: What type of sound wave?

A:

Q: What force is required to accelerate an object having a mass of 6 kg at 9 m/s?

A: Introduction :  In this question we are provided it value of mass and acceleration . With these data…

Q: Calculate the magnitude of the force exerted on the charge by the field B = -3ax + 4ay+ 6a₂ T if the…

A: In the given question, Charge of particle = Q = 18nC = 18×10-9C Magnetic field = B→ = -3ax + 4ay…

Q: What will happen to the object if its density is greater than that of the fluid?

A:

Q: A train is 334 m long runs at 48 m/s. Find the time?

A: Given  Length (L) = 334 m  speed (v) = 48 m/s    Therefore , tume taken by train to cross a pole…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”