Homework Statement
If +6 (C) charge moves through a circuit element, and in so doing the charge loses 12 (J) of energy, then what is the magnitude of the voltage across this circuit element?
A)2(V)
B)6(V)
C)12(V)
D)72(V)
For the same circuit element and situation described in question 1, is...
Homework Statement
A device consists of eight balls each of mass 0.78kg attached to the ends of low-mass spokes of length 2.2m, so that the radius of rotation of the balls is 1.1m. The device is mounted in the vertical plane. The axle is held up by supports that are not shown, and the wheel is...
Homework Statement
A ball of mass m is thrown with a velocity v at a disk of mass M which sticks to the rim on impact.
https://s3.lite.msu.edu/res/msu/perl_author/P3_PRELECTURE/L_CONSERVATION/IMAGES/CQ1.png
For the system of the ball and disk, what is the total initial angular momentum...
Vector C will be perpendicular to both A & B. The angle will be between 0 and 180 degrees
A x B = A B sin([PLAIN]https://www.physics.uoguelph.ca/tutorials/torque/theta.gif) [Broken]
not familiar with right hand rule but I'm trying to learn it right now
Homework Statement
What is the direction of the red ball's angular momentum about the point A?
(see figure)
Same as the momentum.
Out of the page.
Zero magnitude.
Opposite to the momentum.
Same as rA.
Into the page. [/B]
Homework Equations
Angular Momentum[/B]
The Attempt at a...
Im honestly kinda lost here, it it because the collision is between the car and truck, so the system is the car and truck, making the road be neglected?
Homework Statement
What is the x-component of the velocity of the stuck-together car and truck just after the collision?
speed= -7.32352941176471 m/s
You are correct.
c) In your analysis in part (b), why can you neglect the effect of the force of the road on the car and truck?
Homework...
(m+M)gh+ksh=1/2(m+M)V^2 the spring constant should be 1/2ksh^2 not ksh
(m+M)gh+1/2ksh^2=1/2(m+M)V^2
(m+M)v+ksh=(m+M)V Ugrav should be (m+M)gh instead of velocity multiplying the masses (m+M)v, also (m+M)V is missing V^2
Homework Statement
Which equation could adequately be used to determine how high the block goes after being hit by the bullet (a height h)? (see figure)
(m+M)gh+ksh=1/2(m+M)V^2
(m+M)gh+1/2ksh^2=1/2(m+M)V^2
(m+M)v+ksh=(m+M)V
Homework Equations
KE=1/2mv^2
Ugrav=Mgh
PE of spring =...
Homework Statement
If Thomson's "plum pudding" model was correct, what could have happened when Rutherford fired high energy alpha particles at gold foil?
Select all that are True.
Alpha particles are reflected.
Alpha particles pass right through with no deflection.
Alpha particles...
Homework Statement
Two identical carts A and B roll down a hill and collide as shown in the figure below.
i) A starts from rest. It rolls down and collides head-on with B which is initially at rest on the ground. The two carts stick together.
ii) A and B are at rest on opposite sides of the...