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3 years ago

11

An object moves in a circle of radius R at constant speed with a period T . If you want to change only the period in order to cu

t the object's acceleration in half, the new period should be

1 answer:

GarryVolchara [31]3 years ago

5 0

The answer to that is three

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A swimmer swims 110 m toward the shore in 72 s. What is the swimmers velocity in neters per second?

MrRissso [65]

Answer:

1.53 m/s

Explanation:

Velocity is given in meters per second, so if it takes the swimmer 72 second to swim 110 meters:

m/s = 110 meters / 72 seconds = 1.527 or 1.53 m/s

6 0

3 years ago

Perform the following mathematical operation and report answer to the correct number of significant figures 143.6 divided by 21.

Svetllana [295]

The answer to the correct number of significant figures is 6.774.

<h3>What is quotient?</h3>

When a number(big) divided smaller number, the answer obtained greater than zero is called a quotient.

Divide 143.6 ÷ 21.2

143.6/21.2 = 1436/212

=6.77358

The quotient is rounded to three significant figures after decimal

143.6 ÷ 21.2 = 6.774

Thus, the answer to the correct number of significant figures is 6.774

Learn more about quotient

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2 years ago

Compute the kinetic energy of a proton (mass 1.67×10−27kg ) using both the nonrelativistic and relativistic expressions for spee

JulsSmile [24]

Answer:

The non-relativistic kinetic energy of a proton is $6.76\times10^{-12}\ J$

The relativistic kinetic energy of a proton is $7.25\times10^{-12}\ m/s$

Explanation:

Given that,

Mass of proton $m=1.67\times10^{-27}\ kg$

Speed $v= 9.00\times10^{7}\ m/s$

We need to calculate the kinetic energy for non relativistic

Using formula of kinetic energy

$K.E=\dfrac{1}{2}mv^2$

Put the value into the formula

$K.E=\dfrac{1}{2}\times1.67\times10^{-27}\times(9.00\times10^{7})^2$

$K.E=6.76\times10^{-12}\ J$

We need to calculate the kinetic energy for relativistic

Using formula of kinetic energy

$K.E=mc^2(\sqrt{(\dfrac{1}{1-\dfrac{v^2}{c^2}})}-1)$

$K.E=1.67\times10^{-27}\times(3\times10^{8})^{2}\cdot\left(\sqrt{\frac{1}{1-\frac{\left(9.00\times10^{7}\right)^{2}}{(3\times10^{8})^{2}}}}-1\right)$

$K.E=7.25\times10^{-12}\ m/s$

Hence, The non-relativistic kinetic energy of a proton is $6.76\times10^{-12}\ J$

The relativistic kinetic energy of a proton is $7.25\times10^{-12}\ m/s$

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3 years ago

Which of these is the most ductile? A. clay B. gold C. wood D. glass

Feliz [49]

I'm pretty sure the answer is gold

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3 years ago

Mga peymos d nang papallow back yan un follow ko na kayu mga bubu

melisa1 [442]

Answer:

<h2> Ah Filipino ka rin?</h2>

Explanation:

<h2>Saya nmen</h2>

7 0

3 years ago

Read 2 more answers