BUFFALO
This operation involves combining two or more vectors to make a single resultant vector.
Addition
This is the type of friction acting on an object rolling without slipping.
static
What is the magnitude of the electric field outside a disconnected charged capacitor?
Zero V/m
An astronaut is floating in space and holding a wrench. He’s floating behind his spaceship and needs to get back. What should he do?
Throwing the wrench backwards
True or False: The electric potential at the surface of a charged conductor is always 0.
False
When a particle rises to a height h and falls all the way back down, this is the work done by the gravitational force.
Zero J
I push a block across a frictionless surface with a force of 20 N for 5 m in 10 seconds. What is the power output?
10 W
A car is initially traveling at 20 m/s. It accelerates uniformly at a rate of 2 m/s² for a distance of 100 meters. What is its final velocity?
24 m/s
A disk is spinning in the air. What is the torque acting on the center of mass by the gravitational force?
Zero
Where is the KE maximum in a released spring?
When passing the resting position xo
Name two ways an inelastic collision differs from a perfectly inelastic
mass sticks together
Total KE lost
What is the total resistance of a 100 ohm, 200 ohm, and 400 ohm resistor in parallel?
400/7 or 57 ohms
A rigid conducting loop of wire moves through a uniform magnetic field. Is a current produced?
no
How does electric potential change as you move farther from a negative point charge?
It increases
What is the electric field of a uniform disc of charge?
sigma/(2espsilon0)
Kirchoff’s Junction Rule is based on which conservation law?
Conservation of charge = COC
A solid disk of radius 0.5 m and mass 2 kg rotates with an angular speed of 5 rad/s. What is its rotational kinetic energy?
6.25 J
Who has more power? Person A lifting a 100 kg weight in 10 seconds or Person B lifting a 89 kg weight in 9 seconds to the same height?
100 Kg person
Is work done when spinning an object in circular motion one cycle, such that the velocity increases from 2 m/s to 4 m/s?
Yes
What is the term called for in the scenario when a battery is connected to a plain wire?
Short-circuiting
If a particle is in circular motion and heading north at this instantaneous point, this is the direction of the jerk.
directed South
Direction of magnetic field around a current-carrying horizontal loop of wire with counter-clockwise current
UP
A 0.1 kg ball traveling at 5 m/s collides with a stationary 0.2 kg ball. If the collision is perfectly elastic, what are the velocities of the two balls after the collision?
2.5 m/s (0.1 kg ball), -2.5 m/s (0.2 kg ball)
3 springs of equal K joined: two in series and joined in parallel to the third. Does the resulting spring have a constant greater, equal, or smaller than the original spring constant?
Greater
If the density of the Earth remains constant and the radius is doubled as well, what is the gravitational acceleration?
4g