I was following one of the examples that my teacher did in class.
well if i do 1.242 X 10^-6 / 6.15...it equals 2.01951 but the right answer is 201.7561 nm
Homework Statement
An incident light shines on a mercury metal plate with a work function of -4.5 eV. The stopping voltage is observed to be -1.65 volts. What is the wavelenght of the incident light?
Homework Equations
wavelength=hc/E-0(it's a Greek sign n i don't have it in my...
A strong lightning bolt transfers about 25 C to Earth. How many electrons are transferred?
1 electrons = 1.60E-19
so.. 25 / 1.60 E -19 = 1.5625E-18 electrons
but the answer that my teacher gave us is 1.6 E 20 electrons
what did i do wrong?
well what about in a traffic light and when you hit the gas, the things in your car move backward, and when you hit the break that's when the things move forward
A box is sitting on the floor of a truck. The truck accelerates away from a stoplight. Which statement most accurately describes forces on the box.
A) The box is pushed forward by the force of friction acting in the direction of motion of the truck.
B)The engine of the truck pushes the box...
[SOLVED] Formula for average force?
In a ballistics test at the police department, Officer Rios fires a 6.0 g bullet at 350 m/s into a container that stops it in 1.8 ms. What is the average force that stops the bullet?
can anyone help me to do this? or just give me the formula? The teacher...