Finding an Unknown Matrix
A=1 -3
2 5
C=1 -1
-1 2(1) Find a matrix B such that AB=C
(2) Find a matrix D such that DA=C
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09/27/17
A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 105 N?
A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 105 N?
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09/27/17
A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 105 N?
A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 105 N?
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09/27/17
the Earth's orbital pattern around the sun makes the Earth come closer to the sundering the summer, and father during the winter.
the Earth's orbital pattern around the sun makes the Earth come closer to the sundering the summer, and father during the winter.
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09/27/17
how long will it take an object to fall 400feet?
The distance s that an object falls is directly proportional to the square of the time t of the fall. If an object falls 16 feet in 1 second, how far will it fall in 3 seconds? How long will it...
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09/27/17
Which of these 2 solutions is more concentrated?
a. 85% solvent, 15% solute
b. 75% solvent, 25% solute
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09/27/17
The star Sirius is more than 4 light years father from Earth than the star Centauri.
Here is the complete question. The star Sirius is more than 4 light years farther from the Earth than the star Centauri. Write an inequality that represents the distances of Sirius and Centauri...
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09/27/17
A merry-go-around completes one revolution every 21.5 s. Compute the acceleration of a child seated on it, a distance of 6.25m from its center.
Magnitude____
Direction____
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09/27/17
A runner moving at a constant speed of 12.5m/s rounds a curve of radius 4.20m. Compute the acceleration the runner. (State the magnitude of this acceleration
Are these numbers realistic? Yes or no
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09/27/17
A water pistol aimed horizontally projects a stream of water with an initial speed of 5.30 m/s.
(a) How far does the water drop in moving 1.05m horizontaly
(b) How far does it travel before dropping a vertical distance of 1.80 cm?
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09/26/17
Quadratic function
a ball is thrown upward from the top of a 160-foot-high building. The ball is 192 feel above ground level after 1 second, and it reaches ground level in 5 seconds. The height above ground is a...
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09/26/17
math problem
the period T of a sine wave is found to be 50µs. determine the angular velocity and frequency of the wave
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09/26/17
i dont know how to figure out this, someone can help me plis?
(-4,3),(r,5)
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09/26/17
help with physics
A projectile is launched with an initial velocity of 35 m/s at an angle of 30 º above the horizontal. Neglecting air resistance, determine the maximum height (in meters) that the projectile...
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09/26/17
If a ball is thrown into the air with a velocity of 36 ft/s, its height (in feet) after t seconds is given by y = 36t − 16t2. Find the velocity when t = 1.
If a ball is thrown into the air with a velocity of 36 ft/s, its height (in feet) after t seconds is given by y = 36t − 16t2. Find the velocity when t = 1.
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09/26/17
Find the momentum of a 57 kg skateboarder when she is going 2.8 meters per second.
Find the momentum of a 57 kg skateboarder when she is going 2.8 meters per second.
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09/26/17
A Jet stream of water hits a fixed turbine blade with velocity v.The blade is shaped so that the water bounces back at 180 degrees,
A Jet stream of water hits a fixed turbine blade with velocity v.The blade is shaped so that the water bounces back at 180 degrees, directly backwards from its initial direction. If the mass of the...
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09/26/17
An artifact was found near Hadrian's Wall in the United Kingdom.
An artifact was found near Hadrian's Wall in the United Kingdom. Laboratory analysis done in 2001 showed that the artifact contained 76.2% of the C-14 found in living material. The Roman occupation...
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This is my final physics problem. I tried find the net electric charge on B but it is wrong. Please help me. Thank you.
ASK A QUESTIONI need help on this physics problem please. Thanks in advance. Diagram is in the description.Two plastic spheresThe figure shows two thin plastic spherical shells (shown in cross...
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09/25/17
I need desperate help with physics. Please. (Graph added).
http://www.webassign.net/mi3/17-053-Ue_graph_positive.jpg
The graph above gives electric potential energy as a function of the distance between two electrically interacting objects. What system...
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09/25/17
A 100g granite cube slides down a 40 degree frictionless ramp. PLEASE HELP
A 100g granite cube slides down a 40 degree frictionless ramp. At the bottom, just as it exits into a horizontal table, it collides with a 200g steel cube at rest. How high above the table should...
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09/25/17
A ball of mass 1.0kg suddenly explodes, breaking into two pieces that shoot the x-axis in opposite directions. When one of
A ball of mass 1.0kg suddenly explodes, breaking into two pieces that shoot the x-axis in opposite directions. When one of the pieces which has a mass of 0.27kg is at x=70cm, where is the other...
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09/25/17
What was the meaning of the Domino Theory?
This is really hard i need help on 20 questions plz
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