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3 years ago

4. The product of mass and velocity gives a quantity known as

Physics

2 answers:

Maksim231197 [3]3 years ago

4 0

A: momentum I’m positive

Sindrei [870]3 years ago

3 0

The answer is a. momentum

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Calculate the fraction of methyl isonitrile molecules that have an energy of 160.0 kJ or greater at 510 K .

soldi70 [24.7K]

Answer:

$4.0932672025\times 10^{-17}$

Explanation:

$E_a$ = Activation energy = 160 kJ

T = Temperature = 510 K

R = Universal gas constant = 8.314 J/mol K

The fraction of energy is given by

$f=e^{-\dfrac{E_a}{RT}}\\\Rightarrow f=e^{-\dfrac{160000}{8.314\times 510}}\\\Rightarrow f=4.0932672025\times 10^{-17}$

The fraction of energy is $4.0932672025\times 10^{-17}$

3 0

3 years ago

The amount of energy in a photon of light is proportional to the

blondinia [14]

The amount of energy of a photon is proportional to the frequency.

7 0

3 years ago

A rope is being pulled with a force of 366 N parallel to the horizontal surface right, five men are pulling the same rope parall

lakkis [162]

The amount of force applied by individual man to balance the force at the right is 73.2 N.

<h3>Amount of force applied by individual man</h3>

The amount of force applied by individual man to balance the force at the right is calculated as follows;

$F_{right} = F_{left}\\\\F_{left} = F_1 + F_2 + F_3 + F_4 + F_5\\\\F _1 = F_2 = F_3 = F_4 = F_5\\\\F_1 = \frac{F_{right}}{5} = \frac{366}{5} = 73.2 \ N$

Thus, the amount of force applied by individual man to balance the force at the right is 73.2 N.

Learn more about forces here: brainly.com/question/12970081

3 0

2 years ago

How far will a rubber ball fall on 20 seconds?

Shtirlitz [24]

Given that:

time (t) = 20 s ,

S = ?

We know that S = ut + 1/2 at² meters

since free fall, a = g = 9.81 m/s² ; u =0 ;

S = 0 + 1/2 × 9.81 × 20²

7 0

4 years ago

A CD is spinning on a CD player. In 12 radians, the cd has reached an angular speed of 17 r a d s by accelerating with a constan

mote1985 [20]

Answer:

The initial angular speed of the CD is equal to 14.73 rad/s.

Explanation:

Given that,

Angular displacement, $\theta=12\ rad$

Final angular speed, $\omega_f=17\ rad/s$

The acceleration of the CD, $\alpha =3\ rad/s^2$

We need to find the initial angular speed of the CD. Using third equation of kinematics to find it such that,

$\omega_f^2=\omega_i^2+2\alpha \theta\\\\\omega_i^2=\omega_f^2-2\alpha \theta$

Put all the values,

$\omega_i^2=(17)^2-2\times 3\times 12\\\\\omega_i=\sqrt{217}\\\\\omega_i=14.73\ rad/s$

So, the initial angular speed of the CD is equal to 14.73 rad/s.

3 0

3 years ago