12. An object is equilibrium may not have a) any forces acting on it b) velocity c) any torques acting on it d) acceleration 12.A body remains at rest or in uniform motion unless acted upon by an outside net force. a) Law of Acceleration b) Law of Inertia c) Law of interaction d) Law of Universal Gravitation

Q: Find the resultant of the given forces by triangle method. 1. Given: F1 = 25 N due S F2 = 44 N due E…

A: 1) Given : F1 = 25 N due South F1 = 25 N @270 degree counterclockwise from +x axis F2 = 44 N due…

Q: using a diffraction grating with 3000 lines/cm, the first order of wavelength appears at 9 degrees.…

A: No. Of lines = 3000 Width of grating = 1cm θ1 = 9° d = 13000×100 =

Q: B 130.0° 53.0° The magnitude of the vectors are A=6N and B=7N What is the rectangular component of…

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Q: The figure shows the resistor wired in a different way -- a combination of series and parallel.…

A: Given: R1=1 ΩR2=6 ΩR3=13 Ω

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Q: Assume that the launching and landing position of the steel ball are at the same height. (yy) The…

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Q: For the following circuit, calculate the total charge, in Coulombs, delivered by the voltage source.…

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Q: Boxes A and B in the figure have masses of 10.0 kg and 2.0 kg, respectively. The two boxes are…

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Q: An automobile accelerates uniformly from rest to 72 km/h and then the brakes are applied so that it…

A: Solution: Convert 75 km /h to m/s. 75km/h=75×10003600 m/s=20.83m/s. Calculate the time taken during…

Q: A near sighted person has a far-point of 3.68 m. to correct their vision, what should the focal…

A: Far point, D = 3.68 m Lens distance, d = 2 cm  Focal length, f = ?

Q: This, the length of the pendulum is 1.03 m. Now you start with the pendulum at 28.7 degrees with…

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Q: 4. A 430-nm violet light is incident on a calcium photoelectrode with a work function of 2.71 eV.…

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Q: A man does 4,800 J of work in the process of pushing his 2.40 x 103 kg truck from rest to a speed of…

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Q: A double-slit arrangement produces interference fringes that have an angular separation of 5.14 ×…

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Q: Part B A microwave oven produces electromagnetic waves with a frequency of 2.45 GHz and emits energy…

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Q: Explain in detail why a spinning ice-skater's angular speed increases when she pulls in her arms…

A: When the arms are pulled close to her body the moment of inertia( mr2)decreases because the mass…

Q: Problem 8: An oscillating LC circuit has inductance L and capacitance C. The maximum charge on the…

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Q: e velocity vector of the boat has two components: v1 is the velocity of water, and v2 is the…

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Q: Determine the total charge in the capacitor circuits as shown in figure below 4;1F 10V 3µF[ 3µF 4 uF…

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Q: 4.0 m 7.0 m 3.0 m =B+ Two forces can be replaced by an equivalent force R acting at point B on the…

A: Given data according to the question Two forces P is replaced by  equivalent force R

Q: A door hinged on the right is shown in the diagram below: The door is 0.8m wide and 2.2m tall.

A: Given information: The mass of the door (M) = 10.0 kg The width and length of the door: w = 0.8 m; l…

Q: In the diagram, an external B field pointing into the loop is increasing with time. What direction…

A: According to Lenz's law ,if there is any change in magnetic flux linked with a closed surface then…

Q: 1. Why are electrical insulators important?  a. They help the flow of electricity b. They provide…

A: Insulators are the type of material, which opposes the flow of electricity. Eg: wood, etc.

Q: If a car moves at the rate of 30mi/h for 6 min, then 60mi/h for 10 min, and finally 5 min/h for 3…

A: Given:  First 6 min, velocity = 30 mi/hr Next 10 min, velocity = 60 mi/hr Final 3 min, velocity = 5…

Q: In testing a model of a looping roller coaster, an engi- neer observes that the current design would…

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Q: ds at the same elevation it started at, determine the impulse applied to the ball by the club. You…

A: GivenMass of golf ball, m=0.052 kgAngle, θ=42°Distance travell by ball in x direction, d=20.3 m

Q: Using the equation developed for the y-component of the field: (see image) Construct a graph…

A: Given information: The magnitude of the electric field along in y direction:…

Q: In the figure, two radio-frequency point sources S1 and S2, separated by distance d = 2.4 m, are…

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Q: An ambulance with a siren emitting a whine at 1690 Hz overtakes and passes a cyclist pedaling a bike…

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Q: The scalar product A · B of the two vectors A = 2i + 3j and B = i - 2j is O 8 k O -4 k O 2i - 6j

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Q: Calculate the length contraction and orientation of a rod of length 5m in a frame of reference which…

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Q: Two point charges of +2.0 µC and – 1.0 µC are 10 cm apart. The electrical force between them is 180…

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Q: (1) Consider a 0.62kg basketball that is dropped from a height of 1 meter above the floor. (a) If…

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Q: Your mass is 91.5 kg, and the sled s mass is 18.3 kg. The sled is moving by itself on the ice at…

A: Given Mass of a person = 91.5 kg Mass of sled = 18.3 kg Initial speed of sled = 4.88 m/s along the…

Q: Q yDerive agrereul equatjon ofo Calulake the copa intana d acouxi f Capu cution

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Q: . Which of the following statements is TRUE? a. The SI unit for capacitance is farad b. Farad is…

A: si unit of the capacitor is Farad

Q: You put 100g of silicon (with specific heat csil = 703J/kg · K) at 100oC into 100g of water at 20oC.…

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Q: How much mass is need to create 5.25 J of energy? Recall the speed of light c-3.00-10% m/s -…

A: Energy (E) = 5.25 J c = 3×108 ms

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Q: Which has the greater density—5 kg of air at atmospheric pressure (that means, the air you breath)…

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Q: MARBLE A MASS (kg) 0.005 Note: Take into account the direction of the velocities! MARBLE B MASS (kg)…

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Q: i Required information An object moving at constant speed v around a circle of radius r has an…

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Q: Two identical pool balls are shot directly at one another at the same speed. Describe the ball's…

A: As both balls are identical and collision is perfectly elastic.There will be no loss in Total…

Q: A horizontal 810-N merry-go-round of radius 1.20 m is started from rest by a constant horizontal…

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Q: In the experiment, which of the following factors is/are kept unchanged? Select one: O The angle O…

A: Correct Answer :In the experiment , only the Initial speed will remain or kept constant or…

Q: How do you describe the relationship of the value of the capacitance of the capacitor to the voltage…

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Q: What is the strength of the electric field in a region where the electric potential is constant?

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Q: Please answer these according to archimedes' principle What becomes of the lost weight of an object…

A: What becomes of the lost weight of an object when immersed in a liquid?

Q: R, ww R, In the circuit below, V1 =31.5 V, V2 = 19.1V, R1 = 19.9Q and R2 = 28.12. What is the…

A: The current through R2 is 0.676A.

Q: 155° 250 a }20° P What is the magnitude of the resultant R if P=25 N and Q=50N? Refer to the given…

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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.