Find the speed of sound in copper, which has
a a density of 8920 kg/m3 and a bulk modulus
of about 1.4 × 1011 N/m2.
Answer in units of km/s.-3810 m/s
surely you can convert the units?
.
Two otherwise identical ropes differ in length
L by a factor of 2. If the two ropes are fixed at their
ends, the lowest natural frequency of vibration of the shorter rope is:
1. Twice that of the lon
A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum
compression of the spring assuming it has a spring constant of 162 N/m?
I am trying to study for an exam an
Mobuis strip is a 2D object in 3D space with one surface and one edge
http://en.wikipedia.org/wiki/M%C3%B6bius…
Klein Bottle is a 3D object in 3D space that has one surface
http://en.wikipedia.org/wi
A 1.0 kg cube of ice is dropped into 1.0 kg of water, and when equilibrium is reached, there are 2.0 kg of ice at 0.0 degrees C. the initial temperature of the water was 0 degrees C, and was the origi
Person A is standing in a field, and person B is riding in a car that is moving with velocity (v). The person in the car shines a flashlight in the direction he or she is moving. Question: What speed
Alternating current:
a)always flows in the same direction
b)constantly changes direction
c)is necessary for the operation of a transformer
d) b & c
I think it is d but could anyone explain me how a t
A motorboat can maintain a constant speed of 12 miles per hour relative to the water. The boat makes a trip upstream in 40 minutes and the return takes 20 minutes. What is the speed of the current?
my
Two parallel plates have an electric field of 600N/C. how much work is needed to move a 3pC charge 4cm against the electric field and parallel to the electric field.
not sure how to set up the proble
A spring is attached to a mass, and gravity is pulling it down. Then what is the force that keep the mass up from the floor? Air? Spring, or?-Gravity pulls down and the spring resists the force.
Astr
In my bathroom there are two big mirrors parallel to each other and qhen you step in the middle of them theres like this whole tunnel of rooms because of the unlimited reflection.But why does every ro
Okay, so Im in 8th grade physics.
The question is, What is the mass of an object that accelerates to 5 m/s^2 with a force of 30 N?
I know you can find acceleration by dividing force by mass and you ca
A string of 25 identical Christmas tree lights are connected in series to a 120 V source. The string dissipates 64 W. What is the equivalent resistance of the light string? Answer in units of Ω.
What
I did a short lab in class where we found the amount of power used by students by doing 5 pushups and comparing who has the most power
can anyone give me a good title to use? I cant think of anything
The equivalent resistance of the circuit in
the figure is Req = 69.0 ohms.
l----------19ohms-------73ohms--l
l----73ohms------------19ohms--l
l-----R--------battery----switch---l
Find the value of R
