I have an exam tomorrow...Studying physics but lots to learn.Your urgent help is needed..Here are the questions..
Fill in the blanks...words are going to be chosen from the list below..
vector/zero/
Find the electric Field at a point midway between two charges of +30 nC and +63 nC separated by a distance of 30 cm.
Magnitude of Electric Field
Angle of Electric Field [Enter as an angle between 0 a
I forgot, and its for my science fair project. Its due tomorrow, and I really need to know. Please give accurate information~! Does the object inside it float or sink?
My grade dropped from a B+ to a
do on earth?-Discounting the effect of the ship itself; you can find the distance by g = g (M/m)(r/R)^2 where g is the gravity field from the Sun with mass M at distance R = ? which is what youre look
A test tone used on a radio has a frequency of 1,000 Hz. What is the wavelength of this sound in air at normal room temperature?(The speed of sound is 344 meters per second.)-velocity of wave = wave l
Find the number of photons emitted per second. Please-The energy, E, contained within a photon is given by:
E = hf = hc/λ
where h is Plancks constant [1.626 * 10^-34 J.s]
f is the frequency in Hz
c
A thin sheet of plastic of index 1.77 is inserted between two panes of glass to reduce infrared (of wavelength 700 nm) losses.
What thickness is necessary to produce constructive interference in the r
A typical photovoltaic cell delivers 4.2×10−3of electric energy when illuminated with 0.15of light energy.
What is the efficiency of the cell?-Not sure what the units are but it doesnt matter as long
What is the longest wavelength of light that will emit electrons from a metal whose work function is 2.10 eV?-hf = work function + KE
However if you are looking at the max wavelength (or threshold fre
The heart pumps blood into the aorta, which has an inner radius of about 1 cm. The aorta feeds 32 major arteries. If blood in the aorta travels at a speed of 28 cm/s, at approximately what average spe
1. A force ofpounds is required to hold a spring stretched 0.4 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 1 feet beyond
Planet X has a gravitational field that decays exponentially with distance from the planet’s
centre, so that the force acting on a particle P of mass m is –mge^(-γr)ȓ, where g > 0 andγ> 0 are
constant
A wave of amplitude 0.55 m interferes with a second wave of amplitude 0.47 m traveling in the same direction.
(a) What is the largest resultant amplitude that can arise, and under what conditions will
Im working on a project and I have a volt meter hooked up to the circuit to tell me the voltage of the pack. I need to know at what voltage can i safely bring my lead acid battery pack down to without
If anyone show me step by step how to get to the answer I would greatly appreciate it and Ill give you a 5 star rating.
A balloon contains 3.7 liters of nitrogen gas at a temperature of 87 K and a pr
