A heating filament wire has a radius of 6.5 x 10-4m. It is used in a Physics laboratory to make a water heater that dissipates 4.00 x 102 W of power when connected to a voltage source of 220-V, ignoring the effect of temperature on resistance, estimate the necessary length of wire.

Q: A 1024-kg blue ball is dropped from an initial z-position of 3.5 x 106 m through the center of a pla...

A: mass of ball m =1024kgradius R=8.2×106mr distance between them, (3.5+8.2)×106=11.7×106Nmass of plane...

Q: When a 300-g mass is hung from the end of a vertical spring, the spring’s length is 40 cm. With 500 ...

A: The restoring spring force on a spring is given by, F = kx where, F is the spring force, k is the s...

Q: I need help with parts e and f please. I know that a) 0.288m, b) 180 m/s, c) 162 N, and d) 125Hz.

A: Given information; The longitudinal velocity of the wave (v) = 180 m/s The harmonic at which the tra...

Q: Basidiomycete fungi ballistically eject millions of spores into the air by releasing the surface ten...

A:

Q: Uranium, an important component of both nuclear weapons and nuclear reactors, has two major isotopes...

A: Given that: Half life of U-238, T1=4.5×109 yearsHalf life of U-235, T2=0.7×109 yearsLet initially th...

Q: Certain heavy industrial equipment uses AC power that has a peak voltage of 645 V. What is the rms v...

A:

Q: Describe 2-dimentional vector addition for any scenario? Put your best example over here.

A:

Q: Two students are on a balcony a distance h above the street. The first student throws a ball vertica...

A:

Q: A river steamer can travel at the rate of 15 milhr in still water. How long will the trip between tw...

A: Relative Velocity Suppose a particle A is moving with a velocity vA and another particle-particle B ...

Q: As shown in the figure below, a 15-g bullet is fired horizontally into a 3-kg block of wood suspende...

A: Given: The mass of the bullet mb=15 g=0.015 kg. The mass of the wooden block mw=3 kg. The height of ...

Q: ii) Why AFM is mostly used microscopic method for the determination of the thickness of a film?

A: AFM is the mostly used method because; 1. It provides an image of the surface of organic material wi...

Q: A ball swings counterclockwise in a vertical circle at the end of a rope 1.56 m long. When the ball ...

A: given acceleration  a=axi^+ayj^a=-17.9i^+23.7j^    

Q: 4 You are to launch a rocket, from just above the ground, with one of the following initial velocity...

A: v→=vxi^+vyj^v=vx2+vy2 all the initial launch speed will be same. but only first and second will lead...

Q: Please only answer section 3 by indicating the correct answer

A: Solution:   It is given that,   t=ty,max=visinθig   Given Kinematic equation is that:   yf=yi+visinθ...

Q: Q. A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as sho...

A: Given data F=45 kgθ=25°μ=0.1

Q: The figure shows capacitor 1 (C1 = 9.55 µF), capacitor 2 (C2 = 6.12 µF), and capacitor 3 (C3 = 7.93 ...

A:

Q: The member shown below is fixed at O and its dimensions are h1h1 = 1.10 mm, h2h2 = 0.20 mm, and ww =...

A:

Q: Compute the average arterial pressure in the legs of an erect person, 130 cm below the heart.

A: Solution: The arterial blood pressure for a column of 129 cm is about is about 100 torr. Pheart=100 ...

Q: Find the center of mass of a quarter of a circular plate Regular radius) b

A:

Q: , The length of an iron wire at a temperature with 95 degrees knowing that its length is 6.2 m at a ...

A: at T=950  length L0=6.2m coefficient of thermal expansion α=1.2×10-6 m/deg we know L150=L95(1+α△T)L=...

Q: Displayed to the right are two carts connected by a cord that passes over a small frictionless pulle...

A: both block are connected with same rope so both will have same acceleration and tension throughout t...

Q: A 84 kg man is being hauled away from a building on fire as shown in the figure. Variables m = 84 kg...

A: Solution given below:

Q: HW1: If an X-ray diffraction pattern for a powder sample of Cr (crystal system: body-centered cubic ...

A:   The Bragg law with the plane spacing equation combination,  sinθ=λ2ah2+k2+l2   ....1 The Lorentz p...

Q: What to do: Complete the table below with the correct values for every unknown. Show your solutions ...

A: The relation between degree Celsius, farenhight and kelvin scale are as follows: °C5=F-329=K-273.155...

Q: Washington plastic products pays Betty Richeson a 2580 monthly salary plus a 14% commission on merch...

A:

Q: Where must an 800-N weight be hung on a uniform 100-N pole so that a boy at one end supports one- th...

A: The FBD of the system is as follows;

Q: Q. A bead of mass m, which is attached to a vertical metal ring of radius R, reaches point D by pass...

A: When the bead of mass m is attached to a vertical ring of radius R and is dropped from point A, then...

Q: Thermodynamics Question! Please and thank you for all your help! Please make sure the answer is vali...

A:

Q: 7. A daredevil on a motorbike wants to jump over a river that is 25 m across using a rampat the edge...

A: according to problem range that has to be covered is R=25 meter let V is minimum velocity to reach t...

Q: A car starts from a state of rest and drives along a level, straight road. For the first 30 s, the c...

A:

Q: Pls put full solution and box the final answer

A: Given, Velocity - time graph  

Q: 2. A GM counter records 16,000 counts per minute, while the true counting rate is 17,400 counts per ...

A: Given, True counting rate A=17400 counts per minute=290 counts /secondObservered counting rate is N=...

Q: A 0.150-kg glider A is moving to the right on a horizontal, frictionless air track with a speed of 0...

A: mass of glider A mA=0.15kg speed before collison uA=0.8m/s mB=0.3kguB=2.20m/s suppose speed after co...

Q: In a car lift used in a service station, pressure is transmitted by an incompressible liquid from a ...

A: Given data r1=0.05 mr2=0.15 mF2=13300 N

Q: draw an idealized graph for both the v-vs-t graph and the corresponding a-vs-t graph for a cart that...

A: Given, initially, the cart slows down slowly, then stops, and then speeds up slowly. Let initially t...

Q: There is a maximum depth at which a diver can breathethrough a snorkel tube (Fig. E12.17) because as...

A: The depth at which the diver present is given as, h = 6.1 m The density of water is given as, ρ = 10...

Q: (a) Table 1: Calculate the focal length using the Lens equation and complete the table given (Write ...

A: The lens equation: 1f = 1u + 1v where, f is focal length, u is object distance, and v is image dista...

Q: 5. The figure below shows a slab made of three different materials X, Y and Z having refractive indi...

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question s...

Q: The member shown below is fixed at O and its dimensions are h1 = 1.10 m, h2 = 0.20 m, and w = 0.50 m...

A: Given h1 = 1.10 mh2 = 0.20 mw  = 0.50 mF  = 51 N  

Q: 2. How can increase the voltage crosses the solar cells? B. List the main elements of the wind - ele...

A: 2) To increase the voltage output of  the solar cells, one needs to connect the solar cells in serie...

Q: A cable lowers a 1050 kg elevator so that the elevator's speed increases from zero to 4.0 m/s in a v...

A:

Q: DYNAMICS OF RIGID BODIES problem A particle has an acceleration at t=0 of 3m/s2 which was maintained...

A: Given, acceleration a =3 m/s2  for 5 seconds and for another 6 seconds it increase to 9 m/s2

Q: 18.26 (a) In your own words, explain how donor impurities in semiconductors give rise to free electr...

A:

Q: BASIC 9. Compute the total binding energy and the binding energy per nucleon for (a) "Li; (b) "Ne; (...

A:

Q: Review The current-versus-voltage plot for a solar panel is shown in (Figure 1). Part A The short-ci...

A: Solution: We know that,   In general, The short circuit current can be produced when its output volt...

Q: An object is launched at a velocity of 20 m/s in a direction making an angle of 35' with the vertica...

A: angle making with vertical = 35 so angle making with horizontal=55 initial velocity u=20m/s horizont...

Q: Find the oscillation amplitude of a diatomic molecule (CO) for n= 1,2,3,4 & 10,when K=1926 N\m and r...

A:

Q: A body projected upward from the level ground at an angle of 50O with the horizontal has an initial ...

A: Using Newton's equation of motion: v=u+atConsidering the vertical component we get, 0=vsin50°-gtgt=4...

Q: Q5:- In the epicyclic gear train shown in the Fig. below the pinion B and the internal wheels E and ...

A: Given: the values are given in the question as follows: TB=15TC=30TD=25 let  TE  and TF  be the numb...

Q: DYNAMICS OF RIGID BODIES A projectile was fired at a velocity of 20m/s at an angle of35 degrees with...

A: The initial velocity of the projectile is given as, vo = 20 m/s The angle of projectile is given as,...