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4 years ago

Explain why mass is constant everywhere

Physics

1 answer:

Mrac [35]4 years ago

8 0

Answer:

Mass is the amount of matter in a substance, which doesn't change. Thus, mass always remains constant everywhere.

Explanation:

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For a standard production car, the highest roadtested acceleration ever reported occurred in 1993, when a Ford RS200 Evolution w

Sidana [21]

Answer:

a=8.1832m/s^2

Explanation:

Vo=initial speed=0m/s

Vf=final speed=26.8m/s

t=time=3.275s

the vehicle moves with a constant acceleration therefore we can use the following equation

A=aceleration=(Vf-Vi)/t

A=(26.8m/s-0m/s)/3.275s=8.1832m/s^2

the magnitude of the car´s aceleration is 8.1832m/s^2

6 0

3 years ago

Two blocks are connected by a massless rope that passes over a 1 kg pulley with a radius of 12 cm. The rope moves over the pulle

tangare [24]

Answer:

$F=1.159$

Explanation:

From the question we are told that:

Mass of pulley $M=1kg$

Radius $r=12cm$

Mass of block A $M_a=2.1kg$

Mass of block B $m_b=4.1kg$

Spring constant $\mu= 358 J/m2$

Generally the equation for Torque is mathematically given by

Since $\sumF=ma$

At mass A

$T_2-f_3=2.1a$

At mass B

$4.8-T_1=4.1a$

At Pulley

$R(T_1-T_2)=\frac{1*1*R^2}{2}\frac{a}{R}$

$R(T_1-T_2)=0.55a$

Therefore the equation for total force F

At mass A+At mass B+At Pulley

$(T_2-f_3+4.8-T_1+R(T_1-T_2)=2.1a+4.1a+0.55a$

$(T_2-f_3+4.8-T_1+R(T_1-T_2)=2.7a+4.8a+0.55a$

$-f_3+4.1=6.75a$

$-f_3=6.75a+4.8$

Since From above equation

$M_{eff}=6.7kg$

Therefore

$T=2\pi \sqrt{{\frac{M_{eff}}{k}}$

$T=2\pi \sqrt{{\frac{6.75}{\mu}}$

$T=0.862s$

Generally the equation for frequency is mathematically given by

$F=\frac{1}{T} \\F=\frac{1}{0.862}$

$F=1.159$

3 0

3 years ago

Select the correct answer.

Ilia_Sergeevich [38]

Pretty sure it is B.
Because inertia is a tendency to do nothing or remain unchanged.

8 0

3 years ago

I need help with these questions

Zina [86]

Answer:

ffrfhmklkfdsschkxcvbn

6 0

3 years ago

A mass of 630g is hung on a spring. Using Force = mass x gravity, what is the force of the mass, acting on the spring?

hodyreva [135]

Answer:

6.174N or roughly 6.2N

Explanation:

630g=0.63kg

F=m*g=0.63*9.8=6.174N

3 0

3 years ago

Explain why mass is constant everywhere​

Explain why mass is constant everywhere