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The sun has a radiated power of 3.9 · 1026 W, a surface temperature of 5800 K and a radius of 6.96 · 108 m. Examine whether the sun radiates like a black body?If one photon of light is known to have energy 3.33×10^-19J, is it visible?
A forklift uses a force 300N to move a crate 10 meters. How much work was done?
A research project you are working on requires that an electron have a wave function represented by
𝜓(x) = Ae−bx for x ≥ 0Ae+bx for x < 0
The experiment requires that the electron have a 98.0% chance of being within a distance of a = 14.5 cm
from x = 0,
on either side of this center point. From this information, you need to determine numerical values for b (in m−1) and the normalization constant A (in m−1/2) for the wave function.
A 100-N force has a horizontal component of 80 N and a vertical component of 60 N. The force is applied to a cart on a level frictionless floor. The cart starts from rest and moves 2.0 m horizontally along the floor due to this force. What is the cart's final kinetic energy ?
A 100 g sample of a radioactive isotope has a half life of 2 days. After 6 days how many grams of the original radioactive isotope are left?
A radioactive nucleus of Mass M emits a photon of frequency and the nucleus recoils. The recoil will be
The pitch was clocked at 100.9 mi/hr (45.0 m/s). Determine the impulse required to give a 0.145-kg baseball such a momentum.
The mass of a typical car is m=1000kg. so its weight on the Earth’s surface is mg=9800N. Suppose you have two containers, one with N electrons and another with N protons. These two containers are placed a distance 10m apart, and the electric force between them is equal to the weight of the car. Find N.
The mass of a typical car is m=1000kg. so its weight on the Earth’s surface is mg=9800N. Suppose you have two containers, one with N electrons and another with N protons. These two containers are placed a distance 10m apart, and the electric force between them is equal to the weight of the car. Find N.1.
#340153 on Dec 2023