Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. The spectrum of white light doesnt have all possible frequencies. (T/F)
2.The energy of a photon is inversely proportional to its frequency.(T/F)
3.What is the energy of a photon with frequency of 2x1014Hz? h=6.6x10-34J.s
4. An electron jumps from the third level to the first level in hydrogen atom. What is the energy of the emitted photon?
An investigator collects a sample of a radioactive isotope with an activity of 4.4×105Bq . 72hourslater, the activity is 1.2×105Bq. What is the half-life of the sample
On a roller coaster ride the total mass of the cart - with passengers included - is 290 kg. PeakK is at 44.5 m above the ground, peakL is at 28.0 m. The speed of the cart atK is 19.0 m/s, at L it is 12.6m/s.
A nickel crystal is used as a diffraction grating for x-rays. Then the same crystal is used to diffract electrons. what is the kinetic energy of each electron
A runner with a weight of 686.7 N accelerates at a constant rate from 0 to 4.5 m/s in the first 2 seconds of a 100 m sprint. What is the net horizontal force
The mass of Mars, 6.40e23 kg, is about one-tenth of that of the Earth, and it's radius, 3395km, is about half of the earth. What is the mean density of Mars
A baseball (mass 0.14 kg, radius 3.7 cm) is spinning with an angular velocity of 45 rad/s. If the baseball has a linear speed of 38 m/s, what is the ratio of its rotational and translational kinetic energies?
A convex mirror has a radius of curvature of 42 centimeter. Estimate how far is the object from the mirror
a singly charged ion of unknown mass moves in a circle of radius 13.8 cm in a magnetic field of 1.01 t. the ion was
An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.40 10-11 m. What is EPEfina..
a 0.55 kg mass sliding on a horizontal frictionless surface is attached to one end of a horizontal spring with k 850
Two point charges, +5.0 µC and ?3.0 µC, are separated by 4.0 m. What is the electric potential energy?
A 17 centimeter long solenoid has 4700 turns of wire. Inside this solenoid is a second one, also 17 centimeter long but with 2200 turns of wire. Obtain the magnitude of magnetic field in the space between the two solenoids
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd