A rotating flywheel can be used to store energy. If it is required to store 1.00 × 106 J of energy when rotating at, ω, 400 rad/s, what is the moment of inertial of the wheel in kg∙m2? A) 6.25 B) 12.5 C) 25.0 D) 50.0

Q: 7. Two parallel wires are separated by a distance of 0.05 m. Wire 1 (located at the left) carries a…

A: We have two wires which are carrying currents of magnitude I1=12 A and I2=6 A and are separated by a…

Q: 1. If a material has a half-life of 92.5 days, how long will it take for 40% of the material to…

A:

Q: f mass M has an empty paint can of mass m hanging from one end. The meter stick and the can balance…

A: Given:-  The mass of the meter stick is M  The mass of the empty can is m hanging from one end.  The…

Q: 24.0 V 12.0 V + I Μ R₁ 4.00 Ω 13 3.00 Ω 5.00 Ω Μ R₂

A:

Q: A playground merry-go-round of radius R = 1.98 m has a moment of inertia of I = 240 kg * m2 and is…

A: Inertia of child = mr^2Inertia of child = 26 * 1.98^2 = 101.9 kg-m^210.7 rpm = 1.121rad/s

Q: A 15.0 m power line carries a current of 20.0 A perpendicular to the Earth’s magnetic field of…

A:

Q: 2. A 3.0x10 g mass is hung on a one-meter string (maximum tension 8.5N). If the object were to spin…

A: Dear student The time taken for competing one circle can be given by: T = 2πr/V Where, r = Radius of…

Q: 3) A 0.10-kg ball, traveling horizontally at 25 m/s, strikes a wall and rebounds at 19 m/s. What is…

A:

Q: QUESTION A wave in one medium encounters a new medium and enters it. Which of the following wave…

A:

Q: 6.43 Two coaxial conducting cones have their vertices at the origin and the z axis as their axis.…

A:

Q: R₁ 20~ 30~ R₂ R3 40

A:

Q: In the circuit shown in Figure below, when switch is suddenly closed, the wire L is pulled toward…

A: Given : The circuit wire L is pulled to the current carrying wire I when the circuit is switched on.

Q: A. Hand Draw ray diagrams to show image formation with concave lens for following cases: Write…

A:

Q: An Athlete pulls a 30 kilograms crate along Lane A of the storage house. Lane A is a 15m  aisle.…

A:

Q: Among the choices below, what is a series-parallel circuit? * HA A. B. C. B D O A 1 point D.

A: A is only series circuit  B is series-parallel circuit since bottom two resistance are parallel and…

Q: Leonard Kicked a 0:50 kg ball off the rooftop of a building that is 81 m tall. He oriented the kick…

A: Here we use conservation of energy to solve the problem as the ball falls from height H it's…

Q: The I vs t graph shown below is for an LR circuit without a battery. I (A) 12 16 14 10.5 7. 3.5 8 20…

A:

Q: A fan rotating with an initial angular velocity of 898 rev/min is switched off. In 3.4 seconds, the…

A:

Q: Find the energy required to excite a hydrogen electron from the ground state to n = 4

A: Here we use Rutherford model

Q: If a constant net torque is applied to an object, that object will A) rotate with constant angular…

A: The correct answer is option (B) i.e. rotate with constant angular acceleration α.

Q: Which of r₁ and ₂ experiences a/2 phase shift? Air Water Air n 1.00 n = 1.33 n = 1.00 r2 Select one:…

A: Which of the r1 and r2 experience lambda/2 shift.

Q: biconvex lens made of glass with n = 1.45 has two radii of curvature of 20.0 cm and 25.0 cm. An…

A:

Q: A light ray is directed at the inside of a highly pol- ished silver hemispherical bowl and is…

A: We have a highly polished silver bowl on which light is incident making an angle of 45o with the…

Q: 6. A closely wound circular coil consists of 500 turns and carries a current of 4.4 A. The radius of…

A: Let at a distance x from center magnetic field is 0.48 T Now, B = u0NiR2/2(R2+x2)3/2   0.48 =…

Q: /216 The 3-kg sphere moves in the x-y plane and has the indicated velocity at a particular instant.…

A:

Q: What is the speed of a water wave of frequency 2 HZ and wavelength 2.0 m?

A:

Q: A proton traveling at 33.3° with respect to the direction of a magnetic field of strength 3.14 mT…

A: θ = 33.3oB = 3.14 mT F = 6.73×10-17 N

Q: Impulse is defined as: (K:1) Select one: O a. a change in momentum O b. total momentum O c. total…

A:

Q: Earth's neighboring galaxy, the Andromeda Galaxy, is a distance of 2.54 × 107 light-years from…

A: Here , distance , d = 2.54 *10^7 light years time taken ,t = 85 years let the speed of the person is…

Q: A current of 4.3 A flows through a conductor for 6 s. What amount of charge passes through the…

A: Current, I = 4.3 A Time, t = 6 s Charge, q = ?

Q: A particle of mass 0.65 kg moves along the x-axis with a potential energy whose dependence on x is…

A: mass of particle (m) = 0.65 kg The variation of potential energy of the particle with the position…

Q: A point charge q1=+6.00 x 10 °C is at the point x-0.800 m, y =0.600 m and a second point charge q2 =…

A:

Q: A truck traveling 75 km/h accelerates at the rate of 2.8 m/s2. How much time is required for the…

A: Given  Initial speed of truck  u = 75 km/h  Acceleration of truck  a = 2.8 m/s2 Final speed of truck…

Q: A ray of light is incident on the surface of a block of clear ice at an angle of 40.0° with the…

A:

Q: A photon is absorbed by a hydrogen atom in the ground state. If the electron is boosted from to the…

A: Initially electron is in ground state i.e. n = 1  Finally electron jumps to n = 6

Q: A football player with a mass of 124kg is moving from the right to the left at -5.7 meters per…

A:

Q: A kangaroo jumped over a fence, because the grass was literally greener on the other side. What was…

A: The kangaroo jumps under acceleration due to gravity(g) which is downward.

Q: 1) Which of the following equations are dimensionally correct? A) vf = vi + ax B) y = (2m) cos(kx),…

A:

Q: Multiple Choices: Choose the BEST answer for each item. 1. Suppose there are a very long-straight…

A:

Q: re the wave patterns for various values of Awo and Ak same? If comment on the Phase velocity (Vp) of…

A: Given data:-  1) Are the wave patterns for various values of ∆w and ∆k the same? If not, why?2)…

Q: Two polaroid A and B are kept with their transmission axes at an angle with respect to one another.…

A:

Q: 6) A sample of gas is compressed to one-third of its initial volume at a constant pressure of 1.25 ×…

A: Write the given values with the suitable variables. Vf=13ViVi=3VfP=1.25×105 PaW=100 J Here, Vf, Vi,…

Q: Two point charges, Q1Q1Q_1 = -7.0 μCμC and Q2Q2Q_2 = 1.7 μCμC are located between two oppositely…

A: Given that, Q1=-7 μC =-7 ×10-6CQ2=1.7 μC =1.7 ×10-6CElectric field ,E = 7×104 N/CDistance = 0.35 mm…

Q: The kinetic energy of an electron is 2.70 eV. What is its kinetic energy in joules?

A: The kinetic energy in joule is 4.32×10 ^-19 joule.

Q: Part C Three objects lie along the x-axis. A 3.00 kg object is at the origin, a 2.00 kg object is at…

A:

Q: A 25g lead bullet is fired into a piece of wood. Assume that the initial speed of the bullet is…

A: Mass of bullet , m = 25 gm = 0.025 kg  Initial speed of bullet , v = 195 m/s  Kinetic energy of…

Q: Determine the maximum angle of incidence for which the light ray on the end of the light pipe in the…

A:

Q: A solid sphere of mass 1.0 kg and radius 0.010 m rolls with a speed of 10 m/s. How high up an…

A:

Q: wheel of radius 1.0 m is rotating with a constant angular speed, ω, of 2.0 rad/s. What is the linear…

A: Correct option is C) 2.0 m/s

Q: A 2.4 μC particle is going 592 m/s when it is exposed to a magnetic field (see below) and begins…

A: