Light of frequency 1.03x1015 Hz falls on a metal surface, and photoelectrons of energy 4.39 eV are emitted. Find the cut-off frequency for this metal, in Hz.

Q: A long, nonconducting, solid cylinder of radius 3.0 cm has a nonuniform volume charge density p that…

A:

Q: L • VP2. A child's toy consists of a small wedge that has an acute angle u as shown above. The…

A: acuute angle =u mass =m  distance =L

Q: Solve this attachment.

A: Given The circuit shown in Figure 2 is a common source n-channel (NMOS) amplifier M1 with its drain…

Q: R1 = 20 Rtot I tot I1=. AV1=. R2= R3= AV2 = %3D 24V I2= I3=- AV3=. 14=. AV4=. R4= 4A

A: Given,

Q: Which is heavier 1kg of nail or 1kg of cotton? Why?

A: nail is heavier in case of presence of air, in vacuum both are same.

Q: The isotope boron-12 undergoes beta decay. Write the reaction equation and determine the identity of…

A: Given data:  Parent nucleus = Boron-12 Type of decay = beta decay

Q: • VP1. A bag of cement whose weight is Fg hangs in equilibrium from three wires as shown in the…

A:

Q: I don't understand this question. I have looked up the answer listed on the website and i'm hoping…

A: a) The required acceleration when accelerating upward is, b) The required acceleration when…

Q: Which structures aid in the protecting the brain?

A: The brain is protected by the bones of the skull and by a covering of three thin membranes called…

Q: Clicker Question Two physicists decide to blow up a pumpkin. When it explodes, it splits into 3…

A:

Q: The fur of polar bears consists of hollow fibers. (Sometimesalgae will grow in the hollow regions,…

A: Given: The Hollow fibers are present in the fur of polar bears, its beneficial acts are discussed…

Q: Can neural pathways be rewired through interventions such a therapy?

A: Here is some introduction first:

Q: Figure Q1 The 2-kg block is released from rest at A and slides down along the smooth cylindrical…

A: a Given data: Mass of the block, m=2 kg Stiffness of spring, k=800 Nm Angle, θ=60° Radius or height…

Q: An accident in a laboratory results in a room being contaminated by a radioisotope with a half-life…

A: