So I've recently did a hydrogen emission spectrum lab. These were the four wavelengths I got: Red 675 nm Green ...

So I've recently did a hydrogen emission spectrum lab. These were the four wavelengths I got: Red 675 nm Green ...

Calculate the energy (in J) of a photon emitted during a transition corresponding to the third line in the Lyman series (nf = 1) of the hydrogen emission spectrum. (Report your answer...

Some of the answers are below, maybe you can help by answering which one's correct? A. Molecule broken into two or more. B. Reaction results in increasing in No. Of gas moles. C. solid...

Two inclines have the same height and same coefficients of friction. However, incline A is much steeper than incline B. If two identical blocks were pushed up the ramp, which block requires more work...

Hi How do I go about proving that a value for energy does not decay during the process of motion? Thanks

Can mechanical energy be equal to gravitational potential energy

The heat capacity of aluminum is 0.900J/g C How much energy in joules is needed to raise the temperature of an 85 gram block of aluminum from 22.8 C to 96.4 C?

Wien's constant b=2898

I need this by tomorrow morning! please help me!

I have a stupid doubt.Let's suppose that I am driving a car, and you are stationary on the ground.From my point of view,I see that the world around me that,i.e., earth moving with velocity 'v'.Then...

A certain horse can maintain 1.0 hp of output for 2.4 hours with an efficiency of 72%. The horse is pulling a 220 kg object along a horizontal ground. The coefficient of kinetic friction between the...

A 0.80 kg block starts from rest above a 6 m slide and slides down. The block strikes the ground at a horizontal distance "d" from the end of the slide 0.30s after leaving the slide. What...

A 49kg bicycle rider delivers an average of 0.28 hp. The mass of the bicycle is 2.1kg and the hill she is climbing is 245m tall. How much time will this take?

Energy of a covalent bond is approximated as: Vb (rij) =1/2 kijb [( rij-bij)]2 Calculate the force acting on atoms as a function of interatomic distance.

Inclined wooden plane by 45º with repect to the table top by placing books under the other edge of the plane. the height of the top of the the wooden plane to the table is 23 cm and the height from...

A waterfalls is 90m high. Assume that all of the potential energy possessed by the water at the top is completely converted to heat energy. What will be the temperature difference between the water...

An asteroid with a mass of 5.0 x 105 kg collides with the Earth and slides horizontally along the ground without bouncing (not actually possible but just pretend). The velocity of the asteroid before...

Finding the air resistance.

A particle of mass m = 10kg moves along a straight line under the action of force F = λ/x4 , where λ is some constant. A measurement shows that the particle passes the point x = 1m with...

Starting from rest, a 7-kg bowling ball rolls down a hill that is 2.1 meters high and then collides with a stationary 1.5-kg cardboard box. If the bowling ball continues rolling forward at...