Dimension of Planck's constant is similar to: 1. linear momentum 2. angular momentum 3. torque 4. velocity

Q: In the figure below, the Ilight, taut, unstretchable cord B joins block 1 and the larger-mass block ...

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Q: What is the volume of 3.67 kg of mercury at 25 C? You can use any reliable reference to look up the ...

A: Given: Mass of the mercury, m=3.67 kg=3670 g. Required: Volume, V=?

Q: in the Potentiometer experiment, which of the tollowing must bo true cbout the wire on themeter stic...

A: in the potentiometer experiment the wire used must have uniform cross sectional area. Option A is co...

Q: coaster car is going over the top of a 17-m-radius circular rise. At the top of the hill, the passen...

A: Given Radius of circle = 17 m At the top Weight of passenger = 60 % of their true weight We have to ...

Q: An object with total mass mtotal = 16.8 kg is sitting at rest when it explodes into three pieces. On...

A: situation is shown in figure below initial momentum was zero so final momentum is also zero.

Q: If a section of an electric circuit is as shown, then applying Kirchhoff's first law gives: 12 Is in...

A: According to question we need to find kirchhoff s law in a circuit. 

Q: The driver of a 10-wheeler truck slams on the brakes when he witnessed a huge coconut tree blocking ...

A: Here the skid mark shows the distance traveled during the deceleration. So we have: Distance travel...

Q: A conductor suspended by two flexible wires as shown in the figure below has a mass per unit length ...

A: a) Write the expression for the force. Here, m represents the mass, B represents the magnetic field...

Q: If a net horizontal force of 132 N is applied to a person with mass 60 kg who is resting on the edge...

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Q: u find a long silver metal rod with a circular cross-section and you measure its cross-section diame...

A: Given  Diameter d = 1 mm = 10-3 m  Radius r = d /2 = 0.5 × 10-3 m  Current I = 2 A   Free electron d...

Q: Calculate the net force needed to accelerate a 1500 kg car from 15m/s to 20 m/s in 2.0 s? A 3750 N B...

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Q: Wheatstone Bridge Experiment: A galvanometer is used as a: 2. a) current source b) voltage source c)...

A: Wheatstone Bridge Experiment :  A galvanometer is used as a :   

Q: The figure shows three paths along which we can move a negatively charged sphere A closer to a posit...

A: Given that:- Positively charge sphere B is fixed while negatively charged sphere A can move.

Q: 40. • Two blocks are connected by a string, as shown in FIGURE 6-54. The smooth inclined surface mak...

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Q: The figure shows three 0.0132 kg particles that have been glued to a rod of length L=5.80 cm and neg...

A: Initial moment of inertia, I0=md2+m2d2+m3d2=14md2

Q: Two blocks are connected by a cord running over a pulley. Ignore the mass of the cord and pulley and...

A: According to Newton's second law F = ma  

Q: A racquet ball with mass m = 0.248 kg is moving toward the wall at v = 16.5 m/s and at an angle of 0...

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Q: When a certain force is applied to an object with a mass of 2 kg, its acceleration is 10.0 m/s². Whe...

A: Given data:  Mass of first object (m1) = 2 kg Acceleration of first object (a1) = 10.0 m/s2 Accelera...

Q: Solve the following question below, (a) Calculate the current through a 2.5  flashlight filament wh...

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Q: A box sit at rest on a rough 40° incline plane.It begins to slide up the plane when the 70.0N pushin...

A: Given: θ = 40°Fpush= 70.0 N

Q: 1. Three identical point charges q are placed at each of three corners of a square of side L. Find t...

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Q: A doubly ionized molecule (i.e., a molecule lacking two electrons) moving in a magnetic field experi...

A: charge = q = 2e = 2 x 1.6 x 10-19 = 3.2 x 10-19 c magnetic force = F = 6.41 X 10-16 N speed = V = 22...

Q: 2. Two identical bulbs and a capacitor are connected to an ideal battery as shown. The capacitor is ...

A: Capacitor is basically capacity to hold the charge per unit voltage. Initially it behaves like a wir...

Q: rries a current of 10A, in the ̅ direction on the z-axis. Using Biot Savart’s Law Solve the magneti...

A: We know that we have given as current filament carries a current of 10A, in the ̅ direction on the z...

Q: Q. 9. A ball having mass m and velocity u makes a head on collision with another ball. After collisi...

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Q: A gamma ray source emits photons with energy 15 keV. The photons are directed up against the gravita...

A: Doppler frequency shift is given by the formula ,  ∆f =νc if energy is given then E =hf  or  f = E/h...

Q: A 60-W light bulb typically has a current of 0.50-A flowing through it. Calculate (a) the number of ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: In the circuit show in the right, the rate at which R1 dissipating electrical energy is 20.0W a.) Fi...

A: In this question we have to find the values of R1 and R2 and the EMF of the battery. Please give pos...

Q: A string has a point attached to a motor that makes it oscillate with a simple harmonic motion, if t...

A: The wave has amplitude A = 0.10 m, time period T= 1.1 sec and wavelength = 1/2 m

Q: A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is he...

A: We know that the law of conservation of energy is given as  P.E = K.E mgh = 12mv2v= 2gh  where m is ...

Q: a) magnitude of the position s of the particle. b) speed v of the particle. ( ) c) magnitude of the ...

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Q: A cube of edge length { = 3.00 cm is positioned as shown in the figure below. A uniform magnetic fie...

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Q: The direction of an induced current can be determined by: Select one: a. Ohm's Law b. Coulomb's Law ...

A: Among the given laws, to select the one from which the direction of an induced current can be determ...

Q: Two parallel wires are separated by a distance of 0.05 m. Wire 1 carries a current of 12 A. Wire 2 c...

A: Given term  I1 = 12 A  I2 = 6 A  d = 0.05 m = 5 * 10 -2 m      

Q: A worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity by push...

A: *as requested, I'm solving the parts d and e. d) The normal force acts in the vertically upward dire...

Q: In Kirchoffs Rules experiment, suppose you removed jumper J in order to measure the current in resis...

A: when the jumper J1 is removed the current I1  through R1 becomes zero and hence as the net current i...

Q: An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.210 T. If the ...

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Q: What is the electric field strength at a point 75 cm from a charge q = + 3.00 nC?

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Q: 4. Given that the system is in equilibrium, find the tension in the ropes as shown. 65° 65- Ts T: 50...

A: The free-body diagram of point A is shown below.

Q: A child pulls a toy 2.8 m across the floor by a string, applying a force of constant magnitude 0.950...

A: Given : force applied, F = 0.950 N For 1st 1.4 m string is parallel.  For next 1.4 m string makes 42...

Q: In the Power Transfer experiment, A load resistance (R) is connected across the terminals of a 3V po...

A: r = 10 Ω  VL = 3 V   

Q: How much energy does it take to raise the temperature of 6.5 pounds of water from 68 deg. F to 212 d...

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Q: A point charge Q is concentric with two  spherical shells with radii a and b, and charges −2Q and 3Q...

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Q: Two simple pendulums of 60.5 cm and 50 cm respectively. A 60.5 cm pendulum vibrates with a frequency...

A: length of first pendulum = L1= 60.5 cm length of second pendulum = L2= 50 cm frequency = f1= 1 hertz...

Q: A 120 kg space satellite moves in a circular orbit of 400 km above Moon's surface with a period of 2...

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Q: Describe the motion of a person not wearing a seat belt if the car stops suddenly. A The person will...

A: Given in question: A person is moving in the car without wearing a seatbelt. Solution: Step1 - Here ...

Q: Determine the moment of force at A about point O. Express the result as a cartesian vector.

A: moment = r→×F→

Q: A 14.5 cm long solenoid contains 745 turns and carries a current of 5.63 A. What is the strength B o...

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Q: A flat bottomed barge is 30 feet wide, 75 feet long, and 16.5 feet high. How many cubic feet of wate...

A: Given Information:- Length of the barrage is l=75 ft Width of the barrage is w=30 ft Height of the b...

Q: A burglar attempts to drag a 109 kg metal safe across a polished wood floor Assume that the coeffici...

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The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: