Q: What is an electromagnet?
A: Given; Define electromagnet, Illustrate two factor on which the strength of the magnet field of…
Q: 3-109 If the coefficient what is the acceleration of sliding friction i of the block in Fig.
A:
Q: A diver of mass 67.9 kg stands on one end of a diving board of mass 21.7 kg, as shown in the…
A:
Q: You wake up one morning find yourself in a strange room with opaque walls, and no visible doors or…
A:
Q: for the electron Find the momentum of the crystal for the electron if you know that its wavelength…
A:
Q: Two blocks are positioned on surfaces, each inclined at the same angle of 49.9 degrees with respect…
A: Draw the free-body diagram of the black block.
Q: A material of resistivity 370,000 Ohms*m is shaped into a hollow cylindrical shell of length 3 cm,…
A:
Q: At what angle 8 must the 330-lb force be applied in order that the resultant R of the two forces…
A:
Q: Consider a frictionless track as shown in the figure below. A block of mass m1 = 4.25 kg is…
A:
Q: 5. Same situation as before. This time it s a block of mass 1.93 kg sliding with a constant velocity…
A:
Q: A bullet of mass m = 8.00 g is fired into a block of mass M = 210 g that is initially at rest at the…
A: Detailed solution of given question is given in below steps.
Q: A skydiver weighing 204 lbf (including equipment) falls vertically downward from an altitude of 4000…
A: a) When the skydiver falls downward, the weight will act in the downward direction and the air…
Q: Each propeller of the twin-screw ship develops a full-speed thrust of F-220 kN. In maneuvering the…
A:
Q: One gram of water and 1 gram of soil (“land”) are at a temperature of 20°C (68°F). If 5 calories of…
A:
Q: A 5-kg object can move along the x axis. It is subjected to a force F in the positive x direction; a…
A: Given datam=5kgTo find-dv=?
Q: A charge of 2.75 pC is held fixed at the origin. A second charge of 2.75 pC is released from rest at…
A:
Q: Problem 7: A company makes blue light blocking eyeglasses by coating the back of the lens with a…
A:
Q: The retina translates the light into magnetic flux .A True .B False
A:
Q: 3) A current of 40A flows through a 5m wire with a magnetic field of 150T as shown in the figures…
A:
Q: (c) A small ball of mass 0.75 kg is attached to one end of a 1.25 m long massless rod, and the other…
A: Torque
Q: Calculate the magnitude of the tension T and the angle 0 for which the eye bolt will be under a…
A:
Q: A horizontal force of 48 N is applied to push a 35 kg box 6 meters down the hallway at a constant…
A:
Q: (2-19 A plane flies south at 500 km h for 2 h and then flies west at 500 km h west for 1 h. (a) What…
A:
Q: A force F of magnitude 56 N is applied to the gear. Determine the moment (positive if…
A: Given,
Q: 5. A stone is projected vertically upwards from ground level with a speed of 21 ms-¹. Find the…
A:
Q: ILT 5.1: TRY THIS ACTIVITY Directions: Construct ray diagrams for lenses by determine graphically…
A: Image formation by lens
Q: A 2500 kg delivery truck contains 125 cavans of rice, each of mass 50 kg. It is moving at a speed of…
A:
Q: 02. What push P up the incline is needed to move a 200-N block up the incline at constant speed if μ…
A: Draw the free-body diagram of the system.
Q: Compute time required Speed=32 km/hr Distance 50 km
A: Given data : Distance=d Speed=S Required : Time
Q: A 3 kg ball is thrown directly upward from earth surface at a speed of 20 m/s. Neglecting air…
A:
Q: Imagine transferring a certain amount of heat Q to one liter of water raising its temperature by 10…
A:
Q: Compute time required Speed-32 km/hr Distance 50 km
A: Given, Speed, v = 32 km/hr distance, d = 50 km
Q: Three charges are located at the corners of a right triangle where q1 = 2.1 nC, q2 = 4.5 nC, and q3…
A:
Q: An electron that is initially 53 cm away from a proton is displaced to another point. If the change…
A: Given: Initial distance ri=53 cm, Change in electric potential energy ∆PE=3×10-28J. Required: Final…
Q: If a cat travelling at 40 m/s is subjected to a steady deceleration of 6 m/s², how long will it take…
A: Given data: Initial velocity u = 40 m/s Deceleration = 6 m/s2
Q: A bird of (1.6 kg) flies with (5 m/s), calculate its energy.
A: Given, mass of the bird, m = 1.6 kg speed of the bird, v = 5 m/s
Q: A long cylindrical conductor of radius a has two cylindrical cavities diameter a along its entire…
A:
Q: A crate sits on a rough surface. Using a rope, a man applies a force to the crate as shown in the…
A:
Q: Bradley maintains a heading due east with an air speed of 320km/h. After flying for 45 min, he finds…
A: When speed is constant then distance travelled by an object in time 't' is given by S=vtWhere S…
Q: How does the resistance of a metallic wire depend on its
A: Given; Explain with reason, How does the resistance of a metallic wire depends on its temperature.
Q: Given data : 4.022 N Time 5 s Find the impulse ? Force ||
A: Introduction : In this question we are provided with value of force and time . With these data we…
Q: When is the object moving to the right? The left? (Answer in interval notation) The velocity of the…
A:
Q: m₁ m2 4 + The block on the inclined plane is 35 kg and the hanging mass is 24 kg. The radius of the…
A: mass on incline = m1= 35 kg hanging mass = m2= 24kg
Q: The ratio of the shortest wavelength to the longest in the Palmer series wavelength is: * 0.21458…
A:
Q: Three charges are located at the corners of a right triangle where q1 = 2.1 nC, q2 =4.5 nC, and q3 =…
A:
Q: An object of unknown weight is suspended as shown. The tension in rope 1 is 31 N, and the tension in…
A:
Q: The force F has a magnitude of 770 N. Express F as a vector in terms of the unit vectors i and j.…
A:
Q: Uranus (mass = 8.68 x 1025 kg) and its moon Miranda (mass = 6.59 x 1019 kg) exert a gravitational…
A: Given data: m1 = 8.86×1025 kg and m2 = 6.59×1019 kg Gravitational force (F) = 2.28×1019 N Required:…
Q: A person who weighs 660 N is riding a 76-N mountain bike. Suppose the entire weight of the rider…
A:
Q: Same type of track as in the previous problem, this time with d = 2.73 m. The block starts at x = 0,…
A: Apply the energy conservation equation to determine the height up to which the block reaches. Since…
Step by step
Solved in 3 steps with 2 images
- caculate the temperature and pressure rises on a short-pulse excitaton of soft tissue at a body temperaure with fluence of iomJ/cm2. [Take optical Absorption coefficient, Ua=0.1cm1.] Account for your answerIn free spoce, E (2,t) = 10. sin (wt - 82) ox, (V/m) %3D Show that the overage power po ssing through circular disk with a radius of 15.5 m in the Constant plane z= is IW. (Please write down , explaining all the Steps)4.33 Show that (25), = (35), (P) = (36),
- Q.4 (b) In a scintillation detector, the 662 KeV photo peak of Cs137 source is observed at 6.0 V and the: full width at the half maximum of the photo peak is 0.72 V. Find the percentage resolution of the scintillator detector. Also find its resolution in KeV.Apão e r Given R₂0 (r) = 90 Bohv 'qo to where radius & 'A' is normalization Constant. Using the normalization Condition foo R²wr² dr = 1 evaluate A ?. Hint: [USE GAMMA-Integral.)Calculate the radiative equilibrium temperature of the satellite immedi-ately after it emerges from the earth’s shadow (i.e., when the satelliteis sunlit but the earth, as viewed from the satellite, is still entirely inshadow). Givens: the Earth radiates as a blackbody at an equivalent blackbody temperature TE 255 K, the subtended angle is 2.21 steradians, and the radiative equilibrium temperature of the satellite is 166 K when it is in the Earth's shadow
- 2 A.) FOR TWO OBSERVABLES A=x %3D B= LZ, FIND THE UNCERTAINTY RELATIONS TA Jo. AND B.) FOR THE STATE Ynim IN A HYOROGEN ATOM, FIND 8. USE THE DEFINITION OF STANDARD DEVIATION.Water at 20°C flows past a half-body as shown in Fig. Measured pressures at points A and B are 160 kPaand 90 kPa, respectively, with uncertainties of 3 kPa each.Estimate the stream velocity and its uncertainty.You are on an interstellar mission from the E arth to the 8.7 light-years distant star Sirius. Your spaceship can travel with 70% the spee d of light and has a cylindrical shape with a diameter of 6 m at the front surface and a le ngth of 25 m. You have to cross the interstel lar medium with an approximated density of 1 hydrogen atom/m3. (a) Calculate the time it takes your spaceshi p to reach Sirius. (b) Determine the mass of interstellar gas th at collides with your spaceship during the mi ssion.
- The velocity olistribution is Ve 2xî - ayj + (3t-bz k). Is it steady? Find the eg. of the stream lines through the pt. (1,1,3) at t=o,1.(1.3) The complex dielectric constant of the semicon- 8.92 + ductor cadmium telluride is given by er i 2.29 at 500 nm. Calculate for CdTe at this wave- length: the phase velocity of light, the absorption coefficient and the reflectivity. (1.4) The detectors used in optical fibre networks op- erating at 850 nm are usually made from silicon, which has an absorption coefficient of 1.3×105 m¯¹ at this wavelength. The detectors have coatings on the front surface that makes the reflectivity at the design wavelength negligibly small. Calculate the thickness of the active region of a photodiode de- signed to absorb 90% of the light.Some experiments require calibration of the equipment before the mea- surements can be made. Any random errors in the calibration will usually become Systematic errors in the experiment itself. To illustrate this effect, consider an exper- iment on the Zeeman effect, in which a magnetic field causes a tiny shift in the 4.27. frequency of light given out by an atom. This shift can be measured using a Fabry- Perot interferometer, which consists of two parallel reflecting surfaces a distance d apart (where d is typically a couple of millimeters). To use the interferometer, one must know the distance d; that is, one must calibrate the instrument by measuring d. A convenient way to make this measurement is to send light of an accurately known wavelength A through the interferometer, which produces a series of interfer- reference marks fringes wavelength is sent through a Fabry-Perot interferometer, it pro- Figure 4.3. When light of one duces a pattern of alternating light and dark fringes.…