A door has a width of 1 m and a mass of 12 kg. The hinge attaches the door on the left. This time, Andrea pushes on the right end of the door with a force of 30 N at angle θ=90. Bob pushes on the door in the opposite direction of Andrea. He applies a force of 30N30N perpendicular to the door at the midpoint of the door’s width. Assuming that the door is a rod rotating around one end, the angular acceleration of the door is _______ ms2

Q: During which segment(s), if any, does the graph provide evidence that there is a force being applied...

A:

Q: A cube of mass m1=5.4 kg is sitting on top of a second cube of the same size and mass m2=0.5 kg whil...

A: Given: mass m1 = 5.4 kg. mass m2 = 0.5 kg.

Q: A 1055-kg van, stopped at a traffic light, is hit directly in the rear by a 715-kg car traveling wit...

A: From the conservation of momentum.

Q: Shown below are eight different force diagrams (labeled I to VIII). The full arrows touching the obj...

A:

Q: A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book...

A: The force needed to begin moving the block is F=μsmg=0.4422.03 kg9.81ms2=8.80 N

Q: AV = Vp = C1 C2 CT = C1 +C-

A: 1) The first equation can be matched with the option, Potential of a point charge with infinity as r...

Q: Two objects, A and B, are released from rest in free space (no other masses are near). Object A has ...

A: (a) The work done is equal to, W=Fx=max the acceleration and distance or displacement along the dire...

Q: How much current does a 240 W car AC draws from its 12-V electrical system ?

A: power of AC of car = 240 W potential drawn from the electrical system = 12 volts

Q: Work You are moving, which requires that you push a box up hill (as shown below). The box has a mass...

A: The distance travelled is calculated by using the formula x=vt , where v=4 m/s is the velocity and t...

Q: Which of the following frequencies are higher harmonics of a string with fundamental frequencies of ...

A: The fundamental frequency of the string is f = 170 Hz.

Q: A giant sloth throws a ball upward from the ground, and it comes down on top of a 6.12 m tall buildi...

A: H = 6.12 m t = 2.17 sec u ?? (initial upward velocity)  

Q: The boiling point of compound X is 12° C and its enthalpy of vaporization is 24.6 KJ/mole. What is t...

A: The enthalpy of vaporization of the compound is, The boiling point of the compound is,

Q: A projectile is thrown vertically upward from the top of a 17.2 m tall building and strikes the grou...

A: Height of building = 17.2 m T = 3.42 sec   

Q: The coefficient of linear expansion a for some common materials are listed Material a (1/ *C) in the...

A: L = 8.01 cm change in length = 0.0253 cm initial temperature = 23 C   

Q: A clock is constructed so that it keeps perfect time when its simple pendulum has a period of exactl...

A: Given data: Length of the pendulum is, L = 0.2483 m Clock runs slow by, t =1.506 minutes per day For...

Q: Singing in the shower, you hit a note of 170 hertz. The speed of sound in your shower is 340 m/s. Wh...

A: To determine: The wavelength of the note, when singing in the shower   Given: Frequency of the note,...

Q: A 16 N force is applied to a cord wrapped around a pulley of radius 44 cm caused its to spin 5.0 rad...

A:

Q: A board with a weight of mg = 120.0 N and a length of 5.00 m is supported by two vertical ropes.  Ro...

A: At equilibrium , the net vertical forces acting on the system will be zero , which is , ∑Fy=0 and th...

Q: A chicken nugget is thrown upwards and reaches a height of 6.45 m above its release point, and is ca...

A:

Q: Using the average speed of a gas, (8RT/piMW)^1/2 determine the average de Broglie wavelength for an ...

A: a)average speed = 8RTπMat t = 25 C  = 298 K v = 8*8.314*298π* 0.004v = 1255.9 m/s Therefore, de brog...

Q: Please answer the question and its subquestions entirely! This is one question with two subquestions...

A: 1) Initial speed of a car (vi) = 26.8 m/s Distance (d) = 100 m Final speed (vf) = 0 because finally ...

Q: Consider a solid sphere and a solid disk with the same radius and the same mass. Explain why the sol...

A: The expression for the moment of inertia is given as, I=12×M×r2 Here, M is denotes the total mass of...

Q: Niobium metal becomes a superconductor when cooled below 9 K . Its superconductivity is destroyed wh...

A: B=μ0I2πrI=2πrBμ0 Diameter of wire is 2.00  m. So the radius is 1.00 m.

Q: Green light has a frequency of about 5.3Hz×1014Hz5.3Hz×1014Hz.   1. Using the relationship c=fλc=fλ,...

A: The relationship between speed, wavelength, and frequency of light is given by, c=λf......(1)where, ...

Q: A bat flying at 5.20 m/s is chasing an insect flying in the same direction. The bat emits a 39.8-kHz...

A: speed of bat = 5.2 m/s frequency emitted = 39.8 KHzfrequency recieved by bat = 40.6 KHzspeed of soun...

Q: An astronaut is inside a centrifuge that has a radius of 10 m. The astronaut is experiencing 10g, me...

A: Given: The Radius  of the centrifuge (r) = 10 m. The mass  experienced by the astronaut (m) = 10 g =...

Q: Three blocks are connected by ropes, as depicted in Figure 1. The coefficientof kinetic friction bet...

A: Given: The Mass of Block 1 (m1)=2 kg The Mass of Block 2 (m2)=3 kg The Mass of Block 3 (m3)=10 kg

Q: A nonuniform magnetic field given by B = (y^2 + y^1/2)i + (x^3 + x)j, (B in T) is applied on a wire ...

A: The force on the wire is calculated by using the following equation. Here, I is the current flowing...

Q: A gun is shot into a 1 KN block which is hanging from a rope of 1.8 m long. The weight of the bullet...

A:

Q: Suppose an oncoming ambulance moving at 135 km/h emits a steady 825-Hz sound from its siren. A. What...

A: Here, vs=135km/h×1000m1km×1h3600s=37.5m/s

Q: 7. A transverse wave is found to have a distance of 4 cm from a trough to a crest, a frequency of 12...

A: We have:  Trough to crest distance = 4 cm or 0.04 m Frequency of the wave, f = 12 Hz Distance from ...

Q: Momo with mass m is sliding down an inclined plane that makes an angle O relative to the horizontal....

A: Given data: The mass of Momo is, m. Angle of inclination is, ϕ. Coefficient of kinetic friction is, ...

Q: 1. Given the following measurements (in metric and English respectively) of a metal cylinder: length...

A: "As per the guidelines i solved the first question alone". 1. The radius of the cylinder is, r=d2=1....

Q: Whater is flowing out a 16.5cm squared circular pipe at 14m/s. a) What is the volumetric flow rate f...

A: Area = 16 cm2v = 14m/sdensity of water = 1000 kg/m3  

Q: Need help on parts a and b

A: a) The escape velocity from earth is, ves=2GMr=26.67×10-11 Nm2/kg25.97×1024 kg6371 km1000 m1 km=11.2...

Q: NUMBER 8 only!!

A:

Q: (a) What is the length of a simple pendulum that oscillates with a period of 2.20 s on Earth, where ...

A: Given data: The period of oscillation of pendulum is T=2.20 s. The acceleration due to gravity on e...

Q: A platform is rotating at an angular speed of 2.1 rad/s. A block is resting on this platform at a di...

A: Given data: Initial angular speed of platform is, ω1=2.1 rad/s. Initial distance of block from the a...

Q: solve 10 and 11 please.

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

Q: A person standing 1.20 m from a portable speaker hears its sound at an intensity of 5.10 ✕ 10−3 W/m2...

A: d = 1.2 m I = 5.1 *10-3W/m2  

Q: Identical 4.0-uC charges are placed on the y axis at y= 24.0 m. Point A is on the x axis at x= +3.0 ...

A:

Q: Match the following characteristics with the type of glass: “Can be used at higher temperatures with...

A: Lead glass cannot be used at higher temperatures because of high thermal expansion. Borosilicate gla...

Q: If two objects 10 meters apart exert a gravitational force on each other,how far apart do you move t...

A:

Q: The arrhenius equation was originally developed for comparing rates of chemical reactions. Compare t...

A: Given data *The given temperature is T1 = 200 C = (273 +20) K = 293 K *The another given temperature...

Q: Use the following constants if necessary. Coulomb constant, k = 8.987 × 10° N · m² /C². Vacuum permi...

A:

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.