Q2: - Two samples of the same radioactive nuclide are prepared, each having the same size. Sample A has twice the initial activity of sample B. How does the half-life of A compare with the half-life of B? After each sample has passed through five half-lives, what is the ratio of their activities?

Q: The block of mass 10.0-kg is at rest initially and attached to a spring, and the spring constant is…

A:

Q: i need the answer quickly

A: Given for worker A, the magnitude of the force is 850 N, the angle of elevation is 30° and the…

Q: Q4:-Find the kinetic energy of a proton whose de Broglie wavelength is 1.00fm= 1.00x10-15 m. [rest…

A:

Q: A projectile is fired with an initial velocity of 400 m/s hits a cliff 2000 meter apart determine…

A: range = V0 cos(60) x t  here V0 = 400m/s time of flight is t seconds range = 2000m thus, time (t) =…

Q: A car is approaching at a traffic light at a speed of 15 m per second When the light turns red, the…

A:

Q: Determine the coefficient of linear expansion if the length of metal change from 10- 10.02 m and the…

A: 1. Given Length of metal change = 10 - 10.02 m Temperature                   = 30 - 80 K

Q: We have an electrical circuit whose different elements are connected to an alternating current…

A: The electric field is a vector quantity that arises from electric charge. It also corresponds to…

Q: 2.21 and 2.22 Drtermite the x and y cmpowits of eacli of the forces shown. 120N 60 Ib 80 N 100N 30…

A: Given, Force vectors in x-y plane.