A 25.0 kg propeller may be considered to be a 4.5 m long, thin rod, spun about its center. Assuming the propeller starts from rest, What angular velocity will it have if a torque of 1100 N·m is applied for 1.2 s?   Multiple Choice   31 rad/s   7.8 rad/s   26 rad/s   2.6 rad/s

Q: How much charge flows from a 12.0 V battery when it is connected to a 9.00 microfarad capacitor?

A: We know thatQ=CVHereQ=Charge C=Capacitance of capacitorV=Voltage

Q: EXPLORE A trash can with a mass of 9 kg has a coefficient of static friction of us = 0.72 and a coef...

A: Given: m=9kgμs=0.72μk=0.16

Q: A +2.0-C charge is 1.0 x 10 ^4 m to the right of a – 4.0-C. Calculate the electric field (magnitude ...

A: Given: q1=2.0C x1 = 1.0*104 m (right of q2) q2=-4.0 C r = 2.0*104 m (right of +ve charge)

Q: Consider three vectors A = 15.3i + 1.7j, B = 9.5i + 9.1j, and C = -2.7i - 11.4j. What is the result...

A:

Q: The figure below shows two wires carrying currents of I = 4.65 A in opposite directions, separated b...

A:

Q: What are the affects of all the magnetic forces on the loop’s motion? Does the forces result in rota...

A: force on wire 1 = ILK upwards force on wire 2 =  0 force on wire 3 = ILK downwards force on wire 4 =...

Q: 4. Point charges q, = +12 nC and q2 = -12 nC are 0.100 m apart. Compute the electric field caused by...

A: Electric field due to point charge E = KQ/r2 IIf two or more than two electric field acts at a poin...

Q: A potential difference of V = 80.0 V is applied across a circuit with capacitances C1 = 15.0 nF, C2 ...

A: Given  Potential difference, V = 80.0 V  Capacitance  C1 = 15.0 nF C2 = 7.0 nF C3 = 20.0 nF  

Q: There are two 9.1kg identical balls of electrons which are 5m apart. What is the charge of each ball...

A: Given data: Here, m1 and m2 are the masses of balls and d is the distance between them.

Q: The tennis player strikes the ball at A with a horizontal velocity, and it just clears the net (pass...

A: Take left side as positive x axis. The equation of motion is x=vty=7.5-12gt2⇒y=7.5-12gxv2

Q: A 1⁄2 hp motor draws a current of 4.0 A from a 120-V line. (a) Calculate the electric power used by ...

A: (a) electric power drawn = IV = 4×180 = 720 watt.  

Q: A ball with a mass of 20 grams is suspended on a piece of spring. Then pulled down. from a balanced ...

A: Given that:- Mass of ball=20g and it's frequency is 32Hz

Q: 16. A solenoid of length 0-20 m, having 120 turns carries a current of 2-5 A. Find the magnetic fiel...

A:

Q: 3. In the Bohr model of the hydrogen atom, what is the de Broglie wavelength for the electron when i...

A: Ques:

Q: ed 1.4-pF capacitor is connected in series with a 27-ka resistor, an ideal 6.2-V battery, and an ope...

A:

Q: What happens to the spring constant of springs when arranged in parallel series combination, compare...

A:

Q: A point charge of -7 mC experiences an intensity of 5.6 x10^-3 N/C. How far is the point charge from...

A:

Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 5.61...

A: GivenrB=5.61 rA

Q: 2. The upper end of a spring is attached to the ceiling. The spring constant is 5N/m. After a body o...

A:

Q: Suppose that a 1,328 kg car is traveling at 25 m/s. The car brakes can apply 6,435 N of force. What ...

A: First, we need to calculate the deceleration caused due to the braking force. Then we use the equati...

Q: a dentist raises his patients chair by applying a force of 176.44 N to a hydraulic piston of radius ...

A: according to hydraulic piston condition pressure at both end is same  pressure applied by doctor at ...

Q: What will be the area if the electric flux is 3200 Nm^2/ Cif the charge is 2 nC and the force acting...

A: Given data:  Electric flux (Φ) = 3200 Nm2/C Charge (q) = 2 nC = 2×10-9 C Force (F) = 4 μN = 4×10-6 N...

Q: If the given Vander Waals equation is (P+a/V^2)(V-b)=RT. The given states that a=3.592,R=0.08,b=0.04...

A: Solution-: We know that the dimension of V and b is same. So we are using dimension analysis.

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: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h = 3.3 m a...

A: Giventwo blocks of mass m1 and m2 a shown in given figure m2=3 m1 h=3.3 mμk=0.35

Q: 4) You typically don't think of air being an insulator, but it is, though not perfect. Dry air does ...

A: Given : The resistivity of dry air, ρ = 3*1013 Ω-m length of side of square plate, s= 10 cm=0.1 m Di...

Q: Determine the total capacitance of the circuit. * 10µF 50 µF 100µF HHHE

A: Given in question:  Capacitance of three capacitors are -  C1 = 10μFC2  = 50μFC3 = 100μF To find - T...

Q: A room has dimensions 2.44 m (height) × 5.76 m × 6.24 m. A fly starting at one corner flies around, ...

A: Given, A room has dimension, 2.44 m×5.76 m× 6.24m

Q: A centrifuge has a rotational inertia of 5.50 × 10−3 kg m2. How much energy must be supplied to brin...

A:

Q: 2) You measure a wire's resistance to be 0.0125 Ohms. If you stretch the wire, doubling its length, ...

A: Resistivity depends on nature of material on stretching the wire nature of material will be same so ...

Q: The tension in a string from which a 4.0-kg object is suspended in an elevator is equal to 44 N. Wha...

A: If the elevator is going upward, the pseudo force (ma) will act downward.

Q: Constant Part A At a rock concert, a dB meter registered 128 dB when placed 2.2 m in front of a loud...

A:

Q: 3.8.15. [Level 2] Two particles A and B strike each other as shown. ma = 2 kg and mg = 1.2 kg. Just ...

A: Given data: The mass of particle A is mA=2 kg. The mass of particle B is mA=1.2 kg. The velocity of...

Q: Two ideal polaroid sheets are arranged so that the angle between the pass-axis of the two sheets is ...

A: The intensity of the light emerging from the polarizer is given by I = Iocos2θ, where Io = the initi...

Q: A proton moves through a uniform magnetic field of magnitude 2 ?? at a speed of 5 x 106 m/s. (a) Wha...

A:

Q: As an optometry student, you are interning at an Optical Centre. A patient requested to be prescribe...

A: a. 1. Retinoscope 2. Jackson's cross cylinder b. 1. near point is about 25 cm 2. far point is 25 cm ...

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: Write the given values with the suitable variables. d=0.05 mI1=12 AI2=6 A Here, d, I1, and I2 are th...

Q: Use the worked example above to help you solve this problem. A sled is tied to a tree on a frictionl...

A:

Q: 1. How far should a 6 inches object be located from the light source to create a 2 feet shadow on th...

A: we use the relation length of shadow/distance of screen = length of object/distance of object

Q: Find the work done when a constant force F = 11lbs moves a chair from x = 1.4 to x = 4.6ft along the...

A:

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your e...

A: We will find the pressure of the water at that depth and then by multiplying the area we will find t...

Q: A disk, initially rotating at 136 rad/s, is slowed down with a constant angular acceleration of magn...

A:

Q: A point charge, Q1=10μC, is located at P1 (1,2,3) in free space, while Q2=-5μC is at P2 (1,2,10). (a...

A: Given, Charge, Q1 = 10 μC located at, P11, 2, 3 charge, Q2 = -5 μC located at, P2(1, 2, 10)

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: Answer the following question: The potential difference from the cathode to the screen of a televisi...

A: Given : Potential Difference is 22000 V Mass of an electron is 9.11 x 10-31 kg Charge on an electron...

Q: (4 blanks) An ice-making machine operates in a Carnot cycle. It takes heat from water at 0.0 °C and ...

A:

Q: At the centre of a cubical box +Q charge is placed. The value of total flux that is coming out a wal...

A:

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: How large is the charge if the electric flux is 4 Nm²/C if the area is 5 m² and the force acting on ...

A: The electric flux is given by ϕ = qεo, where q = the charge of the particle εo = dielectric permitti...

Q: mass begins at rest and slides 2.97 m down an incline of 46.4 degree in a time of 1.75 s. What is th...

A: Given  Mass m  = 2.41 kg  Distance covered S = 2.97 m  Time taken t = 1.75 s  Angle of inclined plan...

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.