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azamat
3 years ago
11

Help ME QUICK PLEASE QUESTION 2 AND 4 PLEASE 58 POINTS

Physics
1 answer:
monitta3 years ago
6 0

Answer:

For number 4: A vector pointing to the right with a magnitude of 2.0

Explanation:

Very simple- just subtract 6-2

I am not sure how to do #2- sorry!

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A spherical balloon has a radius of 6.95m and is filled with helium. The density of helium is 0.179 kg/m3, and the density of ai
klio [65]

Answer:

602.27 kg

Explanation:

The computation of the largest mass of cargo the balloon can lift is shown below:-

Volume of helium inside the ballon= (4 ÷ 3) × π × r^3

= (4 ÷ 3) × 3.14 × 6.953

= 1406.19 m3

Mass the balloon can carry = volume × (density of air-density of helium)

= 1406.19 × (1.29-0.179)

= 1562.27 kg

Mass of cargo it can carry = Mass it can carry - Mass of structure

= 1562.27 - 960

= 602.27 kg

6 0
3 years ago
An object with a mass of 7.60 kg is moving to the right and experiences an applied force of 50 N to the right. The friction forc
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Answer:

Explanation:

We will use the equation F - f = ma, which is a fancy way of stating Newton's 2nd Law.

F = +50.0,

f = -30.0,

m = 7.60 kg. Therefore:

50.0 - 30.0 = 7.60a and

20.0 = 7.60a and

a = 20.0/7.60 so

a = 2.63 m/s/s to the right

4 0
3 years ago
Iron's ability to rust is not a physical property because
gtnhenbr [62]
The answer should be c
6 0
3 years ago
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How are transverse and longitudinal waves the same?
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Explanation: dfvjdsbv dvjdbv dvuhdv

7 0
3 years ago
) The magnitude of scalar product of two unit vectors perpendicular to each other is ​
fenix001 [56]

This question involves the concept of the scalar product.

The magnitude of the scalar product will be "0".

<h3>SCALAR PRODUCT</h3>

The scalar product, also known as the dot product of the two vectors is given by the following formula:

A.B = |A||B|Cos\theta

where,

  • A.B = Scalar product = ?
  • |A| = Mangnitude of vector A = 1 unit
  • |B| = Magnitude of Vector B = 1 unit
  • θ = Angle between vectors = 90°

Therefore,

A.B = (1)(1)Cos90^o = (1)(1)(0)

A.B = 0

Learn more about scalar product here:

brainly.com/question/6849226

5 0
3 years ago
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