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viva [34]
3 years ago
9

Please help me:(

Physics
1 answer:
Lelechka [254]3 years ago
3 0

Answer:B

Explanation:

I’m doing the same thing you are!

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Explain the reason for following in science. A small stone trapped in your shoe, under your foot, can be very painful.
igor_vitrenko [27]

Answer:

bvvfalbvenvea;vfahvfahvfna.fvn.adnvfad.nvfa;vnfavnfdavnfdanv.VHFvna.vnfad.vnfa;

Explanation:nvfad;bfvf  vf fvdnva,e vdfvf dfvfeva

6 0
2 years ago
Enter a curve slower than the posted speed if your vehicle has a high center of gravity or if surface _____________ is less than
alisha [4.7K]

Answer:

Traction

Explanation:

Enter a curve slower than the posted speed if your vehicle has a high center of gravity or if surface Traction is less than ideal.

Traction is an act of drawing or pulling something over a surface specially a road or a track or it also defined as the grip of a tire on road or a wheel on rail. So speed when entering a curve should be slower when the tire has low traction to avoid accident.

5 0
3 years ago
If two vectors are perpendicular to each other, how should you add them?
Aleksandr [31]

Let us consider two vectors A and B.

As per the question, the two vectors are perpendicular to each other.

Hence the angle between them  \theta =90 degree

We are asked to calculate the resultant of these two vectors.

As per parallelogram law of vector addition, the resultant of two vectors are-

                      R=\sqrt{A^{2}+ B^{2}+2ABcos\theta

                                =\sqrt{ A^{2}+ B^{2}+2AB*cos90}    [cos90=0]

                                =\sqrt{ A^{2}+ B^{2}

This is the way by which we can add two perpendicular vectors.


8 0
3 years ago
Read 2 more answers
A spherical soap bubble with a surface-tension of 0.005 lbf/ft is expanded from a diameter of 0.5 in to 3.0 in. How much work, i
Sladkaya [172]

Answer:W = 1.23×10^-6BTU

Explanation: Work = Surface tension × (A1 - A2)

W= Surface tension × 3.142 ×(D1^2 - D2^2)

Where A1= Initial surface area

A2= final surface area

Given:

D1=0.5 inches , D2= 3 inches

D1= 0.5 × (1ft/12inches)

D1= 0.0417 ft

D2= 3 ×(1ft/12inches)

D2= 0.25ft

Surface tension = 0.005lb ft^-1

W = [(0.25)^2 - (0.0417)^2]

W = 954 ×10^6lbf ft × ( 1BTU/778lbf ft)

W = 1.23×10^-6BTU

8 0
3 years ago
In these formulas, it is useful to understand which variables are parameters that specify the nature of the wave. The variables
Juli2301 [7.4K]
They made me do it I don’t even know what to say I’m so sorry
7 0
3 years ago
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