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Gnesinka [82]
3 years ago
5

How do i get a negative cube when i calculate density​

Physics
2 answers:
fgiga [73]3 years ago
8 0
374848282!,!( rnanxjcifjejzxj
NNADVOKAT [17]3 years ago
8 0

Answer:

density should always be positive, you must have missed a sign somewhere

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What is the organ(s) that detect taste
Nata [24]
Your taste buds that are located on your tongue
6 0
4 years ago
A particle of mass 2.37 kg is subject to a force that is always pointed towards East or West but whose magnitude changes sinusoi
Pavlova-9 [17]

Answer:

v(1.5)=0.7648\ m/s

Explanation:

<u>Dynamics</u>

When a particle of mass m is subject to a net force F, it moves at an acceleration given by

\displaystyle a=\frac{F}{m}

The particle has a mass of m=2.37 Kg and the force is horizontal with a variable magnitude given by

F=2cos1.1t

The variable acceleration is calculated by:

\displaystyle a=\frac{F}{m}=\frac{2cos1.1t}{2.37}

a=0.8439cos1.1t

The instant velocity is the integral of the acceleration:

\displaystyle v(t)=\int_{t_o}^{t_1}a.dt

\displaystyle v(t)=\int_{0}^{1.5}0.8439cos1.1t.dt

Integrating

\displaystyle v(1.5)=0.7672sin1.1t \left |_0^{1.5}

\displaystyle v(1.5)=0.7672(sin1.1\cdot 1.5-sin1.1\cdot 0)

\boxed{v(1.5)=0.7648\ m/s}

3 0
3 years ago
If a cotton ball is dropped from 12 meters with air resistance, what will be the velocity and acceleration at t = 1.00 s?
kifflom [539]
That depends on the weight, shape, size, density, and moisture content
of the cotton ball, as well as on the length, shape, thickness, and surface
texture of every little cotton fiber sticking out of it.

Now you know why we typically ignore air resistance when we work with
objects falling in gravity.
4 0
4 years ago
The wave speed on a string under tension is 200 m/s. What is the speed if the tension is doubled?
Maksim231197 [3]

Answer:

v = 282.84 m / s

Explanation:

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       .v = √ T /ρ

Where v is the speed of the wave, T the tension in the wire and ρ the density of the wire

 If the tension is doubled

        T = 2T₀

        v = √ (2T₀ / ρ)

        v = √2   √ T₀ / ρ

        v = √2  v₀

calculate

       v = √2  200

       v = 282.84 m / s

3 0
3 years ago
Define SI unit of force. A force of 8N acting on a body changes its velocity uniformly from 2 m/s to 5    m/s in 20s. Calculate
laila [671]

Answer:

si unit of force is Newton or dyne

6 0
1 year ago
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