An elevator weighing 9.8kN moves downward from rest until it attains a velocity of 20m / s after it travels a distance of 5m . a ) Which of the following gives the acceleration of the elevator . b ) Which of the following gives the time which the elevator travels at this instant. c ) Which of the following gives the tension in the cable supporting the elevator

Q: Calculate the current flowing in R3. The given emf in this problem is 100 V. R2= 20 s A -ww www…

A:

Q: I can not read your handwriting. Can you type it for me      please quickly

A: Given that- soil loss from a field with a 5 % slope is 45 Mg/ha the cover and management factor =…

Q: Find the distance covered by car moving at 23 m/s in 2.8 s

A: Given data : Time=t Speed=S   Required : Distance

Q: Find the value of displacement Work done=203.5 J Force=26 N

A: Given data : Force=F Work done=W   Required : Displacement

Q: The conventional direction of electric field is ________ Positive to negative Negative to positive…

A: Electric field is produced from positive charge, if we consider the flux lines then we can see that…

Q: A 60-Hz AC generator develops a peak voltage of 170-V. The generator is connected to a lightbulb…

A:

Q: An electric iron of resistance 13 ohms takes a current of 2 A. Find the heat developed in 6 seconds

A: Resistance, R = 13 Ω Current, I = 2 A Time, t = 6 s Heat, H = ?

Q: How long will it take for an amount of Radon-223 to decay to only 60% of the original amount? The…

A:

Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…

A: Given data :                        Mass of object    =     m                    Potential energy…

Q: An electric iron of resistance 13 ohms takes a current of 2 A. Find the heat developed in 6 seconds

A: Given data :                    Time    =    t                  Current   =   I…

Q: Calculate the kinetic energy stored in car of mass 25.22 kg moving with velocity 10 m/s

A: Given data : Mass=m Velocity=V   To find : Kinetic energy

Q: An infinitesimally thin, uniformly charged wire with longitudinal charge density A is given the…

A: Total charge on the wire = Q =λ×(L+2L+L+2L) =6λL Electric field due to circular ring of radius R and…

Q: What is the magnitude force on a proton moving at 2.5 × 105 m/s in a magnetic field 0.5T If the…

A: Given: The velocity of the proton is 2.5x105 m/s. The magnetic field is 0.5 T. The velocity of the…

Q: ms, a bolt of thing can transfer us (the amount and time can vary considerably). We can model such a…

A: Magnetic field due to infinite long wireB=μ0i2πr  Where, i = current in the wire r = distance of the…

Q: FIND IMPULSE VALUE Force=12.1 N Time=2.3 s

A: Given data:  Force (F) = 12.1 N Time (t) = 2.3 s Required: Impulse (I)

Q: A 75 kg climber is hanging on an anchor with anchor angle equals to 60 degree, the tension on each…

A:

Q: Calculate impulse Force=10.75 N Time=3 s

A: Given data:   Force (F) = 10.75 N Time (t) = 3 s Required: Impulse (I)

Q: Q2/A particle moving along a straight line is subjected to a deceleration a = (- V) m/s², where is V…

A:

Q: Physics dont copy the solution already solve here   (Equation of motion in the field of central…

A:

Q: by stirring for 4 minutes, a power equal to 250 W, 200g of altitude close to sea level. water are…

A:

Q: An automobile reduces its speed from 70.00 kph to 50.00 kph after covering a distance of 480.00 m.…

A: Second equation of motion, V2 - U2 = 2 a S Where, V = final velocity               U = initial…

Q: Consider this problem: "Constructive interference fringes from a bright blue laser (wavelength 425…

A: Given that Wavelength of blue laser is = 425 nm Fringe number is = 4th Angular position of fringe is…

Q: 4. A rocket ship has a mass of 1.50 x 105 kg. Its relativistic momentum is 3.00 x 10¹2 kg•m/s. How…

A:

Q: FIND IMPULSE VALUE Force=12.1 N Time=2.3 s

A:

Q: Calculate the equivalent resistance. (A) 10.67 ohm B) 6.67 ohm C) 46.67 ohm D) No answer E 26.67 ohm…

A: Given data:  The circuit diagram Required: The total equivalent resistance

Q: 15. What is the magnitude force on a proton moving at  in a magnetic field 0.5T If the velocity id…

A: The magnitude and direction of Force on a charged moving particle depends depend on the velocity of…

Q: A bullet of mass 0.01 kg is fired at a block of mass 1.3 kg as shown in the figure. After the…

A:

Q: Consider a closed triangular box resting within a horizontal electric field of magnitude E = 7.80 x…

A: For the vertical rectangular surface, the area (shown as A1 is ANS in the Fig.)is A…

Q: Given data: Force=2 N Area 0.7 mm2 Find pressure

A:

Q: When a person lifts an object improperly, a force of 4000 N may be created between vertebrae in the…

A:

Q: You are cold, so you cover yourself in a blanket A half-hour later, you feel much warner. Expla in…

A:

Q: A sphere with a radius of 5 cm that spins at 2.50 flattens into a disk with a radius of 8 cm. How…

A:

Q: A ray of light in air is incident on an air-to-glass boundary at an angle of 30. degrees with the…

A:

Q: The non-attached end of a horizontal rope is oscillated vertically with a frequency of 8Hz. The rope…

A: frequency (f) = 8 Hz Tension (T) = 78 N linear mass density (μ) = 0.36 kgm

Q: Red wire has area of cross section = 10 square meter while Green wire has a cross section = 15…

A: Given data:  Area of cross section of red wire = 10 m2 Area of cross section of green wire = 15 m2…

Q: acceleration due to gravity has the value of g that is affected by the bob's mass. True or false

A: When a body is in free fall motion, then it comes towards surface of earth under the influence of…

Q: Given data: Current = 22 A Resistance = Find the voltage 30 ohms

A: Given, Current, I = 22 A Resistance, R = 30 Ohms Voltage, V = ?

Q: Two capacitors with capacitances C1 and C2 are connected in series Show that, no matter what the…

A:

Q: Find the value of pressure Force=0.67 N Area=1 mm2

A: The formula of pressure is Pressure=ForceArea

Q: Olg 1. An object in a horizontal surface was moved by applying a constant force (in Newtons), F = 8i…

A:

Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…

A:

Q: 7. The magnetic field 2 cm from a long, straight wire is 10-6 T. The current in the wire is C. 1 A…

A:

Q: If the skater has the same angular momentum during the following spin positions, what is the correct…

A: The concept above is of Conservation of Angular momentum Conservation of Angular momentum This state…

Q: b. An air filled 50μF capacitor has a voltage of 10V. An insulator with a dielectric constant of 4.0…

A:

Q: Determine the speed of car Distance=21.57 m Time=2 s

A: Given data:  Distance (d) = 21.57 m Time (t) = 2 s Required: Speed (v)

Q: What is the resultant electric field at point D? Qa = +10uC, Qb= +2uC, Qc = +10uC C +10uC 5cm +2uc…

A:

Q: On planet Tralfamadore the cool atmosphere is rich in froklom molecules. Spherical life forms called…

A:

Q: . A farmer wants to wall off his four-sided plot of flat land, as shown in the figure. He measures…

A: Given Vectors shown in diagram Required vecor D

Q: Three identical point charges of magnitude 6nC are placed at the three corners of a square 40mm on a…

A:

Q: Q.1. For the force system shown in Fig. 1, replace the two forces acting on the rectangular solid by…

A: