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3 years ago

An object's inertia causes it to come to a rest position.

Physics

1 answer:

stellarik [79]3 years ago

3 0

Answer:

Explanation:

the inertia of an object does not make it to come to rest, this is normally caused by friction

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Which action could a student take to show a transverse wave

Phantasy [73]

Im going with B for transverse wave

5 0

4 years ago

A sample of 0.2140 g of an unknown monoprotic acid was dissolved in 25.0 mL of water and titrated with 0.0950MNaOH. The acid req

bezimeni [28]

in a monoprotic acid , its capable of dissociating 1 H⁺ ion . The base used is NaOH which is capable of giving out 1 OH⁻ ion.

Therefore both base and acid react in a 1:1 molar ratio, that means for each 1 mol of monoprotic acid there is , it requires 1 mol of NaOH to be neutralised.

So at equivalence point the number of acid moles present should react with an equal number of NaOH moles to be neutralised

number of NaOH moles added - concentration x volume

number of NaOH moles - 0.0950 mol/dm³ x 27.4 x 10⁻³ dm³ = 0.00260 mol

since molar ratio of NaOH to Acid is 1:1

number of acid moles present is also - 0.00260 mol

mass of acid added - 0.2140 g

we can find molar mass using following equation

molar mass = mass / number of moles

molar mass = 0.2140 g / 0.00260 mol = 82.3 g/mol

therefore molar mass of monoprotic acid is 82.3 g/mol

8 0

4 years ago

An elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then rel

GrogVix [38]

Explanation:

An elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then released, it vibrates vertically. The equation of motion is given by :

$s=6cos\ t+3sin\ t$

Where

s is in centimeters

t is in seconds

Velocity of the particle, $v=\dfrac{ds}{dt}$

$v=\dfrac{d(6cos\ t+3sin\ t)}{dt}$

$v=3cos\ t-6sin\ t$

Acceleration of the particle, $a=\dfrac{dv}{dt}$

$v=\dfrac{d(3cos\ t-6sin\ t)}{dt}$

$v=-6cos\ t-3sin\ t$

Hence, this is the required solution.

6 0

4 years ago

Calculate the speed of a bus that travels a distance of 55 miles in 0.75 hours.

Sonja [21]

Speed = distance / time = 55 / 0.75 = 73.3 miles per hour.

4 0

4 years ago

a student is pushing a 50 kilogram cart with a force of 500 newtons another students measures the speed of the cart and finds th

Irina-Kira [14]

The force of friction is 300 N

Explanation:

We can solve the problem by applying Newton's second law of motion: in fact, the net force acting on an object is equal to the product between the mass of the object and its acceleration. So we can write

$\sum F = ma$