A body is acted upon by a constant torque. In 4 second its angular momentum changes from L to 4L. The magnitude of the torque is... (a)L/4 (b)3L/4 (c)3L (d)12L

Q: The product pV has the same unit with which of the following ? temperature work density it has no…

A: Answer: The correct option is b) Work. Work done has the same units as the product of Pressure(P)…

Q: 1. The disk is rotating about its central axis like a merry-go-round. The rotational position 0(t of…

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Q: v(t) = evt – 1 Solve for the unknown(s). Y, s1 t, s v(t), unit/s a(t), unit/s² S(t), units 7.62E-04…

A: Given : Velocity of particle, v(t)=eγt-1 unit/s Acceleration, a(t) = 7.62e-04 unit/s2 Displacement,…

Q: A curve that has a radius of 90 m is banked at an angle of 0 = 10.4°. If a 1000 kg car navigates the…

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Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: equipotential surfaces a

A: Given: Charge is q=2.96 μC Equipotential surface exist at a distance 1.83 m from given charge.…

Q: Wires A and B, having equal lengths of 42.7 m and equal diameters of 2.87 mm. are connected in…

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Q: 40. E Your friend has slipped and fallen. To help her up, you pull with a force F, as the drawing…

A: The vertical component of the force, Fy=130 N The horizontal component of the force, Fx=150 N

Q: A car travels over the top of a hill. Suppose that the radius of curvature at the top of the hill is…

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Q: Light of wavelength 627 nm is incident normally on a diffraction grating. Two adjacent maxima occur…

A: Use formula of the maxima diffraction grating.

Q: A plane electromagnetic wave, with wavelength 4.0 m, travels in vacuum in the positive direction of…

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Q: The driver of an SUV (m= 1800 kg) moving at a velocity of 3.50 m/s isn't paying attention and rear…

A: Mass of the SUV is M = 1800 kg Speed of the SUV is u = 3.50 m/s Mass of the car is m = 1200 kg Speed…

Q: 18. BIO A certain orthodontist uses a wire brace to align a patient's crooked tooth as in Figure…

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Q: 5. • A concave spherical mirror has a radius of curvature of 10.0 cm. Calculate the location and…

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Q: Exercise # 8 In class we introduced Rabi's model, a two level system with a time-dependent…

A: From equation (1) we have, iћddtcacb = 0αћeiω-ω0tαћe-iω-ω0t0cacb Put β = ω-ω0, iћddtcacb =…

Q: IE .. A car on a circular track accelerates from rest. (a) The car experiences (1) only angular…

A: a) Angular acceleration to increase its speed and centripetal acceleration to keep it in circle so ,…

Q: 1 0 3 000 예 2

A: Lenz's law states that the current induced in a circuit due to a change or a motion in a magnetic…

Q: 14,200 kg railroad cart that is traveling at a speed of 24.0 m/s collides with a 11,500 kg cart that…

A: Given data:  m1 = 14200 kg and V1 = 24.0 m/s m2 = 11500 kg and V2 = 0 m/s Carts lock together after…

Q: 3. If a barbers chair weighs 1.34 kN, rests on a large piston with an area of 34.0 cm2 that connects…

A: The weight of the chair is 1.34 kN area of large piston A1 = 34.0cm2 area of the small piston is A2…

Q: Maximum Voltage on an Isolated Sphere: A large Van de Graff generator has a top electrode that can…

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Q: When the length of a simple pendulum is tripled, the time for one complete vibration increases by a…

A: Given data The relation between the lengths of the pendulum is given as L' = 3L.   The…

Q: 5. A merry-go-round (diameter 4.2 m) is rotating freely with an angular velocity of 0.80 rad/s. Its…

A: 5) a) from Conservation of angular momentum               Iiwi = Ifwf  ⇒Iiwi = Ii+ 4mr2wf1360 ×…

Q: QUESTION 23 The pressure and the volume of four ideal gases, with the same number of molecules, are…

A: As PV=nRT So    T=PV/nR

Q: Lecture

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Q: Swims across Lake Erie are officially sanctioned by the Lake Erie Open Water Swimming Association…

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Q: Question 10 Its separates the inside of your home, which is at 30°C, from the outside, which is at…

A: Solution:-Given thatDimension of window=2 m by 3 mthickness of window (L)=10 cm=0.1 mInside…

Q: Example with numbers N Spring with constant k = 100, mass M = 1kg. Initial conditions: displacement…

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Q: Trial sin e1 sin 02 (degrees) 30 (degrees) 12 0.5 0.208 2 40 15 0.643 0.259 3 50 17 0.766 0.292 4 60…

A: Explain:13 As per the requirement of you We solve question 13  From table given  We plot the graph…

Q: Your friend, who is in a field 70 meters away from you, kicks a ball towards you with an initial…

A: Initial Velocity u = 20 m/sDisplacement S = 70 mAcceleration a =  ( negative since it is…