8.) Light of frequency 0.85 x 10¹5 Hz falls on a metal surface. If the maximum kinetic energy of the photoelectrons is 1.7eV, what is the work function of the metal?

Q: 2. (14.13) How long does it take a 750-W coffeepot to bring to a boil 0.75 L of water initially at…

A:

Q: 9.) A metal has a work function of 4.8 eV. What is the maximum kinetic energy of a photoelectron if…

A: In photoelectric effect if falling light has a frequency more than the threshold frequency or work…

Q: 147 The small 0.6-kg block slides with a small amount of friction on the circular path of radius 3 m…

A:

Q: A car is moving at a speed of 10 m/s, so if its speed is doubled due to uniform acceleration within…

A: Initial velocity of car (u) = 10 msfinal velocity (v) = 2 u time (t) = 10 seconds

Q: 4- Which of the following is NOT a stored form of energy? (a) chemical energy (b) gravitational…

A: Part (4): Introduction: It is the energy that holds these particles together. Biomass, petroleum,…

Q: The voltage in circuit is 14 V and resistance is 2 ohms, calculate the current ?

A: Given: The voltage is 14 V. The resistance of the circuit is 2 Ohm.

Q: Find the speed of sound?

A: Given data;  Distance=1240 m Time,t=4 s

Q: बेपर A solid silver piece is immersed in water contained in a measuring cylinder. The level of water…

A: Given : Initial level of water (Vi) = 50 ml Final level of water (Vf) = 62 ml

Q: An astronaut whose mass is 62 kg on the Earth’s surface is in a spacecraft at an altitude of 6,000…

A: Given data :- mass of an astronaut on Earth's surface m = 62 kg altitude h = 6000 km

Q: 3. The viscosity of a fluid is to be measured by a viscometer constructed of two 5-ft-long…

A:

Q: The tractor is used to lift the 150kg load B with the 24m long rope, boom, and pulley system. if the…

A: Acceleration is a rate of change of velocity with respect to time. So, if velocity is constant then…

Q: The initial speed of a ball thrown straight upward is 17.3 m/s, and then it is caught at the same…

A:

Q: B. Using a periodic table, write the nuclear equations for the following radioactive decay series.…

A:

Q: An elliptical plate, major axis 6 feet and minor axis 4 feet, is submerged vertically until its…

A:

Q: Problem 10: Suppose a 0.95-µg speck of dust has the same momentum as a proton moving at 0.999c.…

A:

Q: A car is moving on a straight line with a variable speed according to the equation v=5t+3 and the…

A: Given: The velocity of the object is  v=5t+3…

Q: The next four questions use this description.  Our Sun has a peak emission wavelength of about 500…

A: According to Wein's displacement lawλmT =bWhere, λm is the wavelength corresponding to maximum…

Q: It takes twice as much work to stretch a spring from 9 to 10 inches as it does to stretch it from 8…

A:

Q: A car is moving on a straight line with a variable speed according to the equation v=5t+3 and the…

A: Acceleration is the rate of change video with time.  So to get acceleration we have to differentiate…

Q: Determine the magnitude of the vector sum V = V₁ + V₂ and the angle 0x which V makes with the…

A:

Q: 1. The air in an automobile tire with a volume of 2.60 ft is at 90°F and 20 psig. Determine the…

A:

Q: Roll a marble from one horizontal surface to another connected by a ramp. Include a slight angle of…

A:

Q: Determine the angles made by the vector V = (-63)i + (-31)j with the positive x- and y-axes. Write…

A:

Q: 12.) Light is incident on a photoelectric apparatus made with sodium plates. The distance between…

A:

Q: A monochromatic light of 626-nm wavelength shines on a single slit and forms a diffraction pattern…

A:

Q: Given data: Wave speed = 150 m/s Frequency 405 Hz Find the wavelength 11

A: Given data :                         Frequency    =    f                         Wave speed    =   v…

Q: A single-stage, single-cylinder compressor is rated at 425 m³/min (7.0833 m³/s) of air. Suction…

A: Given that                  Initial pressure (P1) = 101.325kPa                  Initial Temperature…

Q: What will be the units for the permeaability constant μ0: (tesla, newton/ampere2, weber/meter,…

A: Permeability is the measure of the ability of the material to allow the formation of magnetic lines…

Q: 2. A pump is used to transport water to a higher reservoir. If the water temperature is 20°C.…

A: Cavitation is the phenomenon that causes a drop in the performance of impeller blades when the…

Q: A ball of mass m is released from the top of a frictionless inclined plane AB with an initial…

A:

Q: The resistance of a copper wire at 20°C is 50 ohms. What will be the in the wire if the resistance…

A: Given: The resistance of the copper at 20oC is 50 Ohm. The final temperature is 75oC. The thermal…

Q: A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency…

A: As given, The frequency, f=4.54×1014 Hz Index of refraction of the material, μm=1.35 Index of…

Q: The water pipe shown in the figure has at its intake a cross sectional area of 0.74 m² and a water…

A:

Q: 5. Find the torque and direction produced by a cyclist exerting a force of 75N on the pedal in the…

A:

Q: The diagram below shows a boy observing a fish located at position B below the surface of the water.…

A: Given:-  The diagram below shows a boy observing a fish located at position B below the surface of…

Q: A 330-kg piano slides 3.6 m down a 28 degrees incline and is kept from accelerating by a man who is…

A:

Q: 3/42 For what value(s) of the angle will the acceleration of the 80-lb block be 26 ft/sec² to the…

A:

Q: The Primitive Equations for weather at a specific point operate on this fact:   Question 3 options:…

A:

Q: Now suppose the positive charge is moved off center as shown below. + 4. Redraw the field outside,…

A:

Q: The molecules in a room-temperature glass of water jostle around at   Question 7 options:   a great…

A: The motion of the particles in a solution is rapid and zig-zag.

Q: A block with mass m = 6 kg is being pulled on a frictionless horizontal surface by a force F a…

A: Mass = m = 6kg Force = F = 10 N initial velocity = 2 m/ s Final velocity = 5 m/s

Q: Examppre motor draws in the cable with an acceleration of the supports A and B. The 3 m/s Determine…

A:

Q: 5. (Ch. 19- Exercise 23 in Wolfson) For a gas of six molecules confined to a box, find the…

A: A box has total two sides,  N= 2 (Left & Right)  Total number of particles (n) = 6  (a) All the…

Q: A ball is in free fall motion. Upward is taken to be the positive direction. The displacement of the…

A: When a ball is thrown upward, the velocity of the ball decreases as it gains the height and it…

Q: On planet #3, you fire a projectile horizontally from the edge of a vertical cliff 32.5 m above the…

A:

Q: A car starts from rest, then accelerates at a constant rate over a distance of 55 m. It then…

A:

Q: A boy fires a gun and another boy at a distance of 1020 m hears the sound of firing the gun 3 s…

A: Given : Distance between the boys (d) = 1020 m Time in which sound of firing is heard (t) = 3 s

Q: A uniform magnetic field is in the positive z direction. Note that a positively charged particle is…

A: In the given question, Magnetic field is in z direction. Charge particle is moving in x-direction…

Q: In a conductor, the potential field is:     conservative     flat     solenoidal…

A: There is no any electric field lie inside the  conductor . therefore  electric potential will be…

Q: 3.20 A of current flows through a square loop where each side is 20 cm in length. At each corner of…

A:

Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.