► F 60° A

Q: The weight of bodies may change somewhat from one location to another as a result of the variation o...

A: At sea level, W=mg=ma-bz=80 kg9.807 m/s2-3.32×10-6 s-20 m=784.56 N

Q: A 1.00-kg object is attached to a spring and placed on frictionless, horizontal surface. A horizonta...

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you ar...

Q: The kinetic theory of gases assumes that a gas molecule rebounds with the same speed after colliding...

A: Given : Molecules of gas lose speed after collision with the walls.   Required : The pressure of the...

Q: What uniform magnetic field, applied perpendicular to a beam of electrons moving at 1.70 ✕ 106 m/s, ...

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Q: 7. A stunt car traveling at 20 m/s flies horizontally off a cliff and lands 39.2 m from the base of ...

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Q: Three building materials, plasterboard [k = 0.3 J/(s · m · C°)], brick [k = 0.6 J/(s · m · C°)], and...

A: Assume that the temperature of the plasterboard and the brick interference is T1 and the brick and w...

Q: There is a 5 kg mass hanging on the spring in the following picture. It moves up and down in simple ...

A: The given position of the mass and spring is the one in which the spring is compressed to maximum va...

Q: You may have noticed a small convex mirror next to your bank’s ATM. Why is this mirror convex, as op...

A: The structure of the convex mirror opposite to flat or concave.   The curve-shaped mirror used in op...

Q: A 7.0 kg bowling ball moves at 2.45 m/s. How fast must a 2.60 g Ping-Pong ball move so that the two ...

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Q: A 75.0-kg cross-country skier is climbing a 3.0º slope at a constant speed of 2.00 m/s and encounter...

A: (a) The expression for average force exerted on the snow is, F=Ff+mgsinθ The power is the rate of do...

Q: A spring has a spring constant of 500 N/m. How much force would be required to stretch it 15 m?

A: The force acting on spring is, F=kx               (I)                             k=spring constant,...

Q: -3.8 V 8e-1001 V 1.75 A 3.2 A (b) (c) FIGURE 2.14 2.7 Determine the power being generated by the cir...

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

Q: A circular cylinder of height 1.20 m having faces of diameter 0.620 m is immersed in water of densit...

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Q: A 0.41-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.0 J at point B. (a) Wha...

A: (a) Calculate the kinetic energy at point A. KEA = 0.5*m*vA2          = 0.5*0.41*32       = 1.85 J

Q: A pitcher throws a baseball vertically upward with an initial speed of 15.0 m/s, releasing the ball ...

A: Find the height reached by the ball. v2=u2-2ghv2-u2=-2gh0-152=-29.8h152=29.8h Solve the above relati...

Q: When two sources located at different positions produce the same pure tone, the human ear will often...

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Q: A block of mass m = 2.50 kg is pushed d = 2.70 m along a frictioniess horizontal table by a constant...

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Q: 8. A blow dart is fired horizontally from a height of 1.2 meters. If the dart hits a target that is ...

A: Given The height of blow dart from the ground is hd = 1.2 m. The height of target from the ground i...

Q: 2. A ball is thrown horizontally from a height of 1 m and lands 5 m away. a. What is the time of fli...

A: To determine,Part a Time of flight(t) of the ball.Part bInitial velocity(u) of the ball.given,height...

Q: A large household air conditioner may consume 15.0 kW of power. What is the cost of operating this a...

A: Given data: The power rating of the air conditioner, P0=15 kW. The number of hours of operation of ...

Q: in the problem description it is suppose to be "Fdog up a hill"

A: d) Analyze the following figure. Let us take the direction of the box’s motion and vertically upwar...

Q: Problem 1: Two trains pass each other in opposite directions in close proximity on parallel tracks. ...

A: When two trains pass each other in opposite direction in close proximity on parallel tracks then the...

Q: ultrasound physics If the intensity loss along the beam path is 30 dB, by what factor has the intens...

A: Given data: The intensity loss along the beam path is B=30 dB.     The expression for the factor o...

Q: A person pushes on a spring with a force of 900 N. If the spring compresses 3.6 m, what is the sprin...

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Q: A sprinter starts from the starting block with an acceleration of +2.4 m/s2, which she sustains for ...

A: Given quantities: acceleration of the sprinter (a) = 2.4 m/s2 time (t) = 1.5 s initial velocity (u) ...

Q: A 0.075 kg arrow is fired horizontally. The bowstring exerts an average force of 64.3 N on the arrow...

A: Let F denotes the average force, d denotes the distance over the force is applied, and W denotes the...

Q: On the Wheel of Fortune game show, a solid wheel (of radius 7 m and mass 10 kg) is given an initial ...

A: The wheel’s mass is, The wheel’s radius is, The initial angular velocity of a wheel is, The wheel...

Q: In Millikan's oil-drop experiment, one looks at a small oil drop held motionless between two plates....

A: In Millikan's oil drop experiment, the oil drop is held between the two charged plates and the force...

Q: a) The asteroid Ida has a small satellite orbiting it called Dactyl. Dactyl orbits Ida at a distance...

A: As per guidelines, the first question has been answered. Using Kepler's law, T2=4π2a3GMM=4π2a3GT2

Q: An electric field of 1.51 kV/m and a perpendicular magnetic field of 0.413 T act on a moving electro...

A: Force on a charge q due to electric field E is = qE Force on a charge q, moving with velocity v, due...

Q: Technetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-lives would go by in 22 ...

A: Half life of technetium = 6.0 hr Total time = 22 hr Number of half lives in 22 Hr = 22/6  = 3.666666...

Q: A power plant taps steam superheated by geothermal energy to 558 K (the temperature of the hot reser...

A: Given data: Temperature of hot reservoir, Th=558 K Temperature of cold reservoir, Tc=305 K Output po...

Q: Suppose you would like to use the Sun to start a fire in the wilderness. Which type of mirror, conca...

A: A concave mirror will bring the rays together at a point.clearly, the concave mirror should be used ...

Q: (III) Design a dc transmission line that can transmit 925 MWof electricity 185 km with only a 2.5% l...

A: The power, P=925 MW=925×106 W   The length, l=2×185 km×1000 m1 km=3.7×105 m   The voltage, V=660 kV

Q: 90.0g of ethyl alcohol is mixed with 200g of water. if the mixture is heated from 20 celcius to 78 c...

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Q: Total weight of a motorcycle and its rider is 215 Kg and their combined centre of gravity is 485 m...

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Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.