Q9. How much does it cost in one month to burn a 2000 W Room heater for 6 hours per day if electrical energy cost 10 Bz/kWh?

Q: noment of force respect to point (A), two forces xt ng. 8m 3m 50N Im A 30N

A: Working formula: Moment of a force F with respect to a point(say O)is equal to M=Fr where r is the p...

Q: An electric current of I = 0.75 A flows through a long, straight wire. The wire lies in the plane of...

A:

Q: 5. A barrel contains a 0.120-m layer of oil floating on water that is 0.250 m deep. The density of t...

A: The data given in the question is as follows: 1. Thickness of the layer of oil, doil=0.120 m 2. Dept...

Q: alculate the current for each resistance R, R, 48 n 13 n 12V E, R, E, 9V

A: Given value--- all values given in circuit.  We have to find--- I1 ? I2 ? I3 ?

Q: Two long, parallel wires separated by 2.90 cm carry currents in opposite directions. The current in ...

A: Given that                 The separation between the wire is (r) = 2.90cm = 0.029m                 ...

Q: What is the minimum diameter (D) of the Cu wire so that AV < 1.5 V? Ocu = 6.07 x 107 (Ohm-m)1 -l = 1...

A:

Q: y of 1850 L (1.85 m) is complete ere be above the ethanol in the ta

A: Given Volume ,V0=1850 L=1.85 m3initial temperature , T1=19.3°CTemperature ,T2=10.1°C

Q: A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of e...

A: N=N0e-λt→1 T12=ln2λ ⇒λ=ln2T12=0.6931.3×109=0.533×10-9years-1      

Q: Indiana Jones is looking for the Ark of the Covenant. He found a box containing the clue of its loca...

A:

Q: A wheel is rotating about an axis that is in the Z-direction. The angular velocity ωzωz is -6.00 rad...

A: Initial time, ti = 0 sec  Initial angular velocity, ωi = (-) 6 rad/sec After some time, tf = 14 sec ...

Q: The breaking stress of aluminium is 7.5 x 107 Nm-2. Find the greatest length of aluminium wire that ...

A: Given that:-   Breaking stress of aluminium wire=7.5×10^7 N/m^2

Q: TV channel 2 broadcasts in the frequency range 50 to 56 MHz. What is the corresponding range of wave...

A: Given that                  The frequency range of the TV channel is                                ...

Q: Find the mass of a compact automobile that weighs 7,006 N.

A: Given value--- weight = 7006 N. We have to find--- mass ?

Q: A disk rotates about its central axis starting from rest and accelerates with constant angular accel...

A: According to question we need to find --- (a) Calculate the angular acceleration. (b) Calculate the...

Q: A 0.5 kg mass is projected up a long 25° inclined plane with an initial speed of 4.5 m/sec. The bloc...

A:

Q: Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual grav...

A:

Q: 3,2 0.0025 m ContA jet of water discharges into an open tank, and water leaves the tank through an o...

A:

Q: If the force on the tympanic membrane (eardrum) increases by about 1.5 N above the force from atmosp...

A:

Q: Air, 32kPa Im OI, SG-0.8 Problem 4 Determine the magnitude and location (take the measurement using ...

A:

Q: The state of an ideal gas is changed in a steady-state open process from 400 kPa and 1,2 m^3 to 300 ...

A:

Q: The following are electron carriers in a hypothetical biological system: Electron Carriers (E,) A (0...

A:

Q: Light passes from air into ice with part of the ray reflected and part refracted. The reflected and ...

A:

Q: Gold has a density of 19.32 g/cm3. If a square pyramid has a base length of 5 cm, a height of 6 cm, ...

A: Given: Base length of pyramid l=5 cm, Height h=6 cm, Mass m=942 g, Density ρ=19.32 g/cm3. Required: ...

Q: 2 ЗР 3 P 1 4 V 4v V 33. An ideal gas is taken through a closed path 12-3→4-1. What is the net work d...

A: Answer:- (A) 6 PV  Given  Change in pressure (∆P) = (3P - P) = 2P Change in volume (∆V) = (4V - V) =...

Q: Find magnetic field at P1 and P2. (а) P2 (b)

A:

Q: You are working at a company that manufactures solenoids for industrial and research use. A dient ha...

A:

Q: Motorist A and B. starting at the same time, approached each other from points C and D respectively....

A:

Q: R2

A: Write the given data R1=10 cmR2=10.03 cmN=320 rpmL=25 cmT =torque=35 Nmω=2πN60=2π32060=33.510 rad/s ...

Q: Two particles of equal mass 'm' go around a circle of radius Runder the action of their mutual gravi...

A:

Q: A 2000-kg pickup truck is moving at a speed of 40 m/s as its brakes are applied, and comes to a stop...

A:

Q: 2V C = Tr/N l+ ^p(5+N) Q2. a) Step-by-step derive Nopt the optimal number of cells in a location are...

A:

Q: V.(V) -2 0.0 5.0 10.0 15.0 f (x104 Hz) Find Work function Choice -0.5 eV -1.0 eV -1.5 eV 0.5 eV 1.0 ...

A: Graph is given Find the work function.

Q: a car Cer e tate the oerk requiread debe clone te top of 1500 Fg moving at a velaily of 6 -ln ?

A: mass of car (m) = 1500 kg Initial velocity of car = 60 km/hr final velocity = 0 m/s

Q: Two conductive balls have the same. charge of the first (-8µc) and the charge of the second (+2µc) I...

A: charge on first ball (q) = -8 μC charge on second ball (q') = 2μC   

Q: Find the force acting on a body if the mass equal ( 4.5 kg) and acceleration equal ( 3 m/sce2) * O 1...

A:

Q: The James Webb space telescope (JWST) (mass of about 6500 kg) orbits the Sun (m = 1.99 x 10 ^ 30 kg)...

A:

Q: Which causes a greater effect to the magnitude of the velocity of an object in a uniform circular mo...

A: If an object moving in a uniform circular motion, the force of the particle experience in the circul...

Q: is flying at an airspeed of 400 km/h, on a heading of 035°. A 175-km/h wind is blowing from a bearin...

A: We know that we have given that the airplane is flying at an airspeed of 400 km/h, on a heading of 0...

Q: Q1: The cable AB supports three vertical loads as shown in next figure. Compute the resultant of the...

A:

Q: 1 The frequency of a damped harmonic oscillator is one-half the frequency of the same oscillator wit...

A: the frequency of a damped harmonic oscillator is one-half the frequency of the same oscillator with ...

Q: Ca be tate the eerk required debe clone e topa cr of 1500 kg moving at a veloity of 6 K-lh?

A: Given data-                            mass of car = 1500 Kg                           moving with v...

Q: B: Find the total moment of force with respect to point (0), for the two forces in next fig. 4m 4m 2...

A: Given that:- Two forces are acting on a block is shown in the figure.

Q: figure below shows a roller-coaster car on a track. The car is fully loaded with passengers and has ...

A: Car will loose contact if if there is no normal force or normal reaction becomes zero. At point B th...

Q: The two wires shown in the figure below are separated by d = 11.1 cm and carry currents of I = 4.90 ...

A:

Q: Two charged parallel metal plates are separated by a distance d and a potential differen ce of VAB b...

A: Given that:

Q: The mass of an electron is 9.0 x 10-31 kg. It revolves around the    nucleus of an atom in a circul...

A: Given value--- mass = 9.0 × 10-31 kg. radius = 4.5 m. speed = 8 × 105 m/s. We have to find--- ang...

Q: From the ground level, a marble is tossed vertically upward. A second marble is hurled vertically up...

A:

Q: A woman swims the length of a 120-m pool and back again (one lap) in 90 s with a constant speed.  2....

A:

Q: 10. When a He-Ne laser with a wavelength of 632.8 nm is emitted through a single slit 0.3 mm wide, f...

A:

Q: This glass lens has an index of refraction n = 1.50. Its surfaces have radii of curvature of magnitu...

A: