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ohaa [14]
3 years ago
5

Which makes better packing material :a high density or density material? Why

Physics
2 answers:
spin [16.1K]3 years ago
6 0
When density is high, it is harder to carry.
Korvikt [17]3 years ago
3 0
High density because it is obvious it will be hard to rip and tear.
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What is the most visited State in the USA.
Harrizon [31]
1-California
2-Florida
3-Texas
4-New York

So I’m sure that to most visited state in the USA is California
8 0
3 years ago
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It is known that the 10 kg pipe will roll up the ramp and not slide on the ramp when P becomes sufficiently large. Using the rol
riadik2000 [5.3K]

Answer:

65.73N

Explanation:

The frictional force is a force that opposes the motion of an object on a flat surface or an inclined surface.

It is always acting up an incline plane .

Since the pipe will tend to roll up the plane, then both the impending force P also known as frictional force and the moving force Fm both will be acting up the plane.

The net force acting up the plane is

Fnet = P + Fm... (1)

The force perpendicular to the plane known as the normal reaction R must be equal to the force acting along the ramp in other to keep the body in equilibrium i.e R = Fnet

If R = W = mgcos (theta)

and Fm = mgsin(theta)

Then mgcos theta = Fnet

mgcos (theta) = P+Fm

mgcos (theta) = P+mgsin(theta)

P = mgcos (theta) - mgsin(theta)... (2)

Given mass = 10kg

g = 9.81m/s

We can get theta from the formula;

µ = Ff/R = wsin theta/wcos theta

µ = sin theta/cos theta

µ = tan(theta)

0.3 = tan (theta)

theta = arctan0.3

theta = 16.7°

P = 10(9.81)cos16.7° - 10(9.81)sin16.7°

P = 98.1(cos16.7°-sin16.7°)

P = 98.1(0.67)

P = 65.73N

The minimum force P required to cause impending motion is 65.73N

5 0
3 years ago
1. According to Newton's third law of motion, how are action
san4es73 [151]

Answer:

you couldn't do this on your own or search it up on google

8 0
3 years ago
Let's assume you use green light (λ = 550 nm) to look at an electron. What is the uncertainty in determining the electron's velo
Rudiy27
By uncertainty principle

λ = h / p.         

Where λ = wavelength,  h = Planck's constant = 6.63 * 10⁻³⁴ Js

λ = wavelength = 550 nm = 550 * 10⁻⁹ m, Mass of electron = 9.1 * 10 ⁻³¹ kg

p = Momentum = mv

λ = h / mv

v = h / mλ

v = 6.63 * 10⁻³⁴ / (9.1 * 10⁻³¹ *  550 * 10⁻⁹)

v = 1 324 675.325 m/s

v ≈ 1.325 *10⁶  m/s
8 0
3 years ago
Ten Seconds after starting from rest, a car moving at 40 m/s what is the cars average acceleration
marta [7]

Answer:

4ms {}^{ - 2}

Explanation:

We can use equation of motion to solve this

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6 0
3 years ago
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