What is meant by ultrasonic waves? Mention the properties of ultrasonic waves.

Q: (b) Explain polymorphism and allotropy with suitable examples.

A: Hey dear I have write the answer . Have a look

Q: 4) If 10J of work is required to move 2C of charge in a uniform electri the potential difference…

A: Write the given values with the suitable variables. W=10 Jq=2 C Here, W and q are the work done and…

Q: 7) A 1 g. cork sphere on a string is coated with Silver paint. It is in equilibrium, making a 10…

A: Value of electric field = 100N/C Mass of sphere =1g =0.001kg θ=10°

Q: A rotating platform turns with a constant angular acceleration 2.00 [rad/s²] A. How much time does…

A: Part A solution

Q: 5) An electron crosses a perpendicular magnetic field as shown below. The direction of the induced…

A:

Q: Part A You throw a 3.00 N rock vertically into the air from ground level. You observe that when it…

A:

Q: 18) A 60 Ohm resistor is made by winding Platinum wire into a coil. If the Platinum wire has a…

A: Resistance (R)= 60 ohm  Diameter(d)=0.10 mm  Resistivity of platinum (ρ) =10.4 x10-8

Q: 3) A proton enters a magnetic field of 10T and an electric field of 2000 N/C in such a way that it…

A: Moving particle is proton  Charge on proton (e) = 1.6×10-19 C  Magnetic field (B)= 10 Tesla…

Q: A positive charge q,2.50 uC on a frictioniess horizontal surface is attached to a spring of force…

A: q1 = 2.50 μC q2 = -8.65 μC initial distance between two charges = 9.50 cm final distance between two…

Q: A mass m with speed v approaches a stationary mass M. The masses bounce off each other without any…

A:

Q: b) You are given a number of capacitors are marked '50uF,25 V. i) Explain the meaning by this…

A: Given : Asked to answer the first part of b.

Q: What is the total work WE done on the box by the appled force in this case? Express your answer in…

A: The force due to friction is given by Ff = μN, where μ =  coefficient of friction, N = normal force.…

Q: d. Cannot be determined How much horizontal force must a girl apply to a 50 kg cabinet to accelerate…

A: Given that acceleration of cabinet, a= 0.4 m/s2 friction force on cabinet, f = 70 N mass of…

Q: 1. A pair of thick conducting slabs are fixed in place near one other as shown, with their faces…

A: Let E be defined as the electric field due to a conducting slab. Therefore, E=Qε0A Here, Q is the…

Q: 8) What is the direction of the magnetic field at point A above the wire carrying current? a) Out of…

A: Direction of magnetic field at point A located above the current carrying wire.

Q: 9) How many electrons are moving through a current of 2A for 2 s? a) 3.2 x 10-19 b) 6.28 x 10 18 c)…

A: Given:          Current, I=2 A            Time, t=2 s Find: The number of electrons, n=?

Q: Calculate the horizontal force P on the light 14° wedge necessary to initiate movement of the 32-kg…

A:

Q: A metal sphere of radius 30 cm has a net charge of 30.0 nC. What is the magnitude of the electric…

A: Given: In this question, the given details are, A metal sphere of radius 30 cm has a net charge of…

Q: Problem 5: 45 40 30 Figure 1. The red points from 1 to 15 show the successive locations of a puck at…

A: Given:

Q: 11) What is the current in a 5 Ohm resistor due to a potential difference of 20 V? omb bas obutingem…

A: Write the given values with the suitable variables. R=5 ohmV=20 V Here, R is the resistance and V is…

Q: In one of the classic nuclear physics experiments at the beginning of the 20th century, an alpha…

A: Given: In this question, the given details are, In one of the classic nuclear physics experiments at…

Q: A 5-kg package is pushed 2 m up a ramp that is inclined at 12° above the horizontal by a 100-N force…

A:

Q: An isolated conducting sphere of radius a = 0.20 m is at a potential of -2,000 V. Determine the…

A: Part-d Given: The radius of the inner sphere a = 0.2 m. The radius of the outer shell b = 0.4 m.

Q: A spherical shell with inner radius RA and outer radius RB is filled with a material with uniform…

A: Solution:   We know that,   Q=ρVQ=ρ43πRB3-RA3

Q: What is the density of a solid cube if it floats in oil while half of it gets submerged? The density…

A:

Q: (a) Prove that: Eg 3 E₁ = 5/2 + ²/(kTin (mm) Ef 4 me (b) Now show that the concentration of…

A:

Q: ▼ Y Part A Determine the magnitude of the tangential component of reaction of pin O on the rod at…

A:

Q: (b) Define the intensity and energy density at a point in a plane wave of sound. Obtain an…

A: (B). The sound waves are generated by the sound sources like vibrating diaphragm. The sound waves…

Q: 8 Infer Imagine that a circuit breaker opened the circuit every coffee maker, and microwave at the…

A: Given that,       circuit breaker opened the circuit everytime       while operating the…

Q: 14) What is the equivalent capacitance a) 2 b) 8 4F 4 -t V c) 5 2F of the circuit shown bela d) 10…

A: From the figure we have to identify the combination if it is series or parallel.

Q: 12) A 20 Ohm resistor has 10 A current in it. The Power generated is? a) 2000 b) 2 c) 200 d) 4000 e)…

A: Write the given values with the suitable variables. R=20 ohmI=10 A Here, R and I are the resistance…

Q: Correct A spring of negligible mass has force constant k- 1400 N/m. Corect answer is shown. Your…

A: Given, spring constant K = 1400 N/m             mass m = 1.30 kg            height h = 0.800 m The…

Q: Calculate the work done by the force F when the car moves from z-0 to z=7.0m.

A: using force-displacement graph work done by the object will be area under the graph