Questions Answered

mj1423:
Group Title
verify stokes theorem for the Vector A = (zx+2y^2)J+ yz K and for the square surface of length a
 updated 7 months ago
 1 reply
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mj1423:
Group Title
cross product of G = dot product of F Verify.
…
 updated 7 months ago
 4 replies
 1 Medal

mj1423:
Group Title
Assume a rocket is launched straight up from Earth and is affected by a constant gravatational force of magnitude mg directed straight down.…
 updated 9 months ago
 1 reply
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mj1423:
Group Title
how do you cancel a 3/2 power?
 updated 9 months ago
 20 replies
 1 Medal

mj1423:
Group Title
assume rocket is launched straight up from Earth and is affected by a constant gravitational force of magnitude mg directed straight downwar…
 updated 9 months ago
 1 reply
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mj1423:
Group Title
Is this circuit in series?
 updated one year ago
 5 replies
 1 Medal

mj1423:
Group Title
A student, standing near a straight road,
records the sound of a car’s horn. The
recorded frequency (as a function of the car’s
…
 updated one year ago
 12 replies
 1 Medal

mj1423:
Group Title
An airplane travels 90 m/s as it makes a hor
izontal circular turn which has a(n) 0.33 km
radius.
…
 updated one year ago
 3 replies
 1 Medal

mj1423:
Group Title
A 539 kg mass is released from rest on a
track at a height 2.9 m above a horizontal
surface at the foot of a slope. It collides
…
 updated one year ago
 3 replies
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mj1423:
Group Title
l
 updated one year ago
 2 replies
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mj1423:
Group Title
lock m1 of mass 2m and velocity v0 is trav eling to the right (+x) and makes an elastic headon collision with block m2 of mass m and veloc…
 updated one year ago
 2 replies
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wendy67:
Group Title
why does the potential energy of a substance have a higher value than the kinetic energy of that system?
 updated one year ago
 8 replies
 1 Medal

mj1423:
Group Title
Two identical objects are moving directly to
ward one another at the same speed v.
~v −~v
…
 updated one year ago
 7 replies
 1 Medal

mj1423:
Group Title
Block m1 of mass 2m and velocity v0 is trav
eling to the right (+x) and makes an elastic
headon collision with block m2 of mass m
…
 updated one year ago
 13 replies
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mj1423:
Group Title
Two cars that have the same mass and velocity have a head on collision. A car with the same mass and velocity as the first situation crashes…
 updated one year ago
 20 replies
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mj1423:
Group Title
Sally applies a total force of 285 N with a
rope to drag a wooden crate of mass 100 kg
across a floor with a constant acceleration in
…
 updated one year ago
 1 reply
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mj1423:
Group Title
A 1659 kg car has a speed of 11.4 m/s when
it hits a tree. The tree doesn’t move and the
car comes to rest.Find the amount of work done by…
 updated one year ago
 7 replies
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mj1423:
Group Title
A 1659 kg car has a speed of 11.4 m/s when
it hits a tree. The tree doesn’t move and the
car comes to rest. Find Change in kinetic energy
 updated one year ago
 1 reply
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mj1423:
Group Title
Two blocks are connected by a thin inexten sible string over a frictionless massless pulley as shown on the picture below The acceleration …
 updated one year ago
 2 replies
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biri10:
Group Title
you roll a pair of number cubes. what is the probability of getting even numbers on both cubes? ANSWERS ; 1/2, 1, …
 updated one year ago
 3 replies
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Gabylovesyou:
Group Title
Ionic compounds are formed when
a metal bonds with a metal.
…
 updated one year ago
 2 replies
 1 Medal

Gabylovesyou:
Group Title
Question 1 (Multiple Choice Worth 2 points)
Covalent compounds
…
 updated one year ago
 3 replies
 1 Medal

jameca12:
Group Title
A precipitate will form when the soluble salts KI and Pb(NO3)2 are mixed. True or
False
 updated one year ago
 1 reply
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Gabylovesyou:
Group Title
In what state or phase do most ionic compounds occur?
Solid
…
 updated one year ago
 2 replies
 1 Medal

GalaxyS:
Group Title
A tennis player hits a ball 2.20m above the ground. The ball leaves his racket with a velocity of 16.2 m/s at an angle 19 degrees above the …
 updated one year ago
 4 replies
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Marethyu:
Group Title
Simplify 4(9y + 2)
 updated one year ago
 1 reply
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jameca12:
Group Title
Choose the ionic compound(s): (i) NaCl, (ii) H2, (iii) CO, (iv) KBr
 updated one year ago
 3 replies
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Gabylovesyou:
Group Title
The compound NaCl is an example of a(n)
covalent compound.
…
 updated one year ago
 5 replies
 1 Medal

Gabylovesyou:
Group Title
Hydrogen is a nonmetal and Oxygen is a nonmetal. If these two elements were to bond, they would form a(n)
covalent compound.
…
 updated one year ago
 3 replies
 1 Medal

Gabylovesyou:
Group Title
The compound MgF is an example of a(n)
metallic compound.
…
 updated one year ago
 2 replies
 1 Medal
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