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matrenka [14]
1 year ago
6

Vector B has x, y, and z components of 2.4,

Physics
1 answer:
Fed [463]1 year ago
3 0

The magnitude of the vector B is 10.9

A vector is a quantity which has magnitude as well as direction and it follows vector laws of addition.

To calculate the magnitude of the vector, we have to put the square of the components of the vector along the axes under the root.

Vector B has components,

x = 2.4

y = 9.8

z = 4.1

Applying the formula,

|B| = √x²+y²+z²

|B| = √(2.4)² + (9.8)² + (4.1)²

|B| = √5.76+96.04+16.81

|B| = √118.61

|B| = 10.9

Talking about the direction the the Vector B, it will be the line joining the origin with the points (2.4,9.8,4.1)

To know more about Vectors, visit,

brainly.com/question/25705666

#SPJ9

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Answer:

Heat required to melt 1 lb of ice is 151.469 KJ

Explanation:

We have given mass of ice = 1 lb

We know that 1 lb = 0.4535 kg

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Amount if heat for fusion of ice is given by

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So heat Q=mL=0.4535\times 334=151.469kj

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3 years ago
If someone drops a cup, it falls to the ground. Why doesn't the gravitational force between the person's hand and the cup keep t
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Answer:

The gravity from the person's hand is weaker than the gravity from the pull of the earth

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A 20 kg wagon is pulled along the level ground by a rope inclined at 30 degree above the horizontal. A friction force of 30 N op
Elan Coil [88]

(a) 34.6 N

To solve the problem, we have to analyze the forces acting along the horizontal direction.

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In this part, the wagon is moving at constant speed, so a =0 and the equation becomes

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(b) 43.9 N

In this case, the acceleration is

a=0.40 m/s^2

So, the equation of motion in this case is

F cos \theta - F_f = ma

So this time we have to take into account the term (ma).

Using the  same data as before:

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We find the new magnitude of F:

F=\frac{ma+F_f}{cos \theta}=\frac{(20)(0.40)+30}{cos 30}=43.9 N

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3 years ago
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A. Made of the marble.

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