Based on the equation KE = 1/2(m)(v^2), Kinetic Energy can be measured based on velocity. If an object has a large velocity, it have a larger kinetic energy than if the velocity is small.

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3 0

4 years ago

Compared to the cells in a healthy body, Elisa’s cells are getting far fewer ____________________ molecules.

Elenna [48]

Answer:

glucose

Explanation:

7 0

3 years ago

You are loading a refrigerator weighing 2267 N onto a truck, using a wheeled cart. The refrigerator is raised 1.09 m to the truc

meriva

Answer:

a).

Wmin= 2471.03 J

W=1603.01 J

Explanation:

Weight, w= 2267 N

$w= m*g\\W=m*g*h \\W=w*h$

Minimum work 'h' is the distance the refrigerator is raised h=1.09m

$W_{min}=2267 N* 1.09m\\W_{min}=2471.03 J$

The motion is no frictional force so, the magnitude of the force with a angle of 45.0° is find using:

$W=m*g*h'\\h'= sin(45)\\W=2267N*sin(45)\\W=1603.01 J$

6 0

3 years ago

An astronomer observes electromagnetic waves emitted by oxygen atoms in a distant galaxy that have a frequency of 5.710 × 10^14

Dmitry_Shevchenko [17]

Answer:

$v = 6.72 \times 10^6 m/s$

Explanation:

As we know by the doppler's effect of light that when source moves with respect to stationary observer then the frequency of light received is different from its actual frequency

the relative change in the frequency of light is given by the formula

$\frac{\Delta \nu}{\nu} = \frac{v}{c}$

here we know that

$\Delta \nu = 5.841 \times 10^{14} - 5.710\times 10^14$

$\Delta \nu = 1.31 \times 10^{13} Hz$

now we have

$\frac{1.31 \times 10^{13}}{5.841 \times 10^{14}} = \frac{v}{2.9979 \times 10^8}$

$v = 6.72 \times 10^6 m/s$

5 0

3 years ago