Julius

167 Questions
135 Answers

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982

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+956

Urgent Help @CPhill @EP @Anyone

Julius Oct 5, 2018

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ASAP help

Which of the following planes is the equation for the plane with an x-intercept (2,0,0), a y-intercept at (0,-3,0), and is parallel to the z-axis?

a) 3x-2y-6 = 0
b) 2x-3y+z-6=0 read more ..

Julius Jun 5, 2018

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974

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Check my work

a) They're perpendicular because of opposite slope: d1 has slope 3/2 and d2 has slope -2/3

b) 3x+2y-11=0 read more ..

Julius May 28, 2018

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1576

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Clarify

An airplane is heading north with an airspeed of 400 km/h. The plane encounters a wind from the east at 100 km/h. What is the magnitude of the resultant ground velocity?

a) 387 km/h
b) 400 km/h read more ..

Julius May 23, 2018

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1806

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The vectors and have the same magnitude. The angle between the vectors is 125, and the magnitude of their cross product is 20. What is

The vectors and have the same magnitude. The angle between the vectors is 125°, and the magnitude read more ..

Julius May 23, 2018

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1356

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Stuck

What is this direction cosine for the vector (7,4,-3) with the positive z-axis?

a) -3/74
b) -3/√(74) read more ..

Julius May 23, 2018

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1577

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Clarify

The resultant of two forces has a magnitude of 23 N in the northwest direction. What is the equilibrant?

a) 23 N NW
b) -23 N SE read more ..

Julius May 23, 2018

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1380

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Help

A 20 N force acts on an object. The horizontal component of this force has a magnitude of 12 N. What is the angle the force made with the horizontal?

a) 53.13°
b) 36.87° read more ..

Julius May 23, 2018

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1582

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Stuck

Two forces of 4 N and 5 N act on an object and their corresponding force vectors have a dot product of 8. What is the angle between the vectors?

a) 66.42°
b) 27.27° read more ..

Julius May 23, 2018

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Help

A force of magnitude 5 N acts on an object. A second force of magnitude 7 N acts at 50° to the other force. What is the magnitude of these two forces?

a) 8.6 N
b) 10.91 N read more ..

Julius May 23, 2018

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971

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Help

Umm, so I tried drawing two vectors and an angle of 114. But that's as far as I got.

Julius May 18, 2018

+1

1023

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Help

I know the formula is T = rFsin(theta)
So: T = (0.3)(5)sin(67)
T = 1.4 Nm read more ..

Julius May 18, 2018

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Help

W = (30)(50)cos30
W = 1299.04 J
read more ..

Julius May 18, 2018

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1052

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Help

Can someone help me with this, please?

Julius May 18, 2018

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I'm thinking because 4+5 does not equal 10? I'm probably very off

Julius May 17, 2018

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Confused

I'm confused with this question, any help is appreciated.

Julius May 16, 2018

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1106

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Check my work

Okay so first I did the cross product and I got: (3,8,1)
Then I did: √(3)^2+(8)^2+(1)^2
I get: √74 read more ..

Julius May 16, 2018

+956

0

2X2=4

JuliusMar 8, 2017