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3 years ago

Using the "Rube Goldberg" machine image below, identify the correct simple machine used in this complex machine.

Physics

1 answer:

marissa [1.9K]3 years ago

4 0

Answer:

c is the correct answer

Explanation:

A Rube Goldberg Machine is “a comically involved, complicated invention, laboriously contrived to preform a simple operation.” 2. What are the 6 Simple Machines? A. The 6 Simple Machines are: wedge, screw, lever, wheel and axel, inclined plane and pulley

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Earth’s orbital speed is approximately _____. 1600 kilometers per hour 110 kilometers per hour 43,000 kilometers per hour 107,00

zhannawk [14.2K]

Answer:

107,000 kilometers per hour.

Explanation:

5 0

4 years ago

Read 2 more answers

If you increase the charge on a parallel-plate capacitor from 3 mu or micro CC to 9 mu or micro CC and increase the plate separa

aliya0001 [1]

Explanation:

The energy stored in a capacitor is given by

$U = \dfrac{1}{2}QV = \dfrac{Q^2}{2C}$

In the case of a parallel plate capacitor, the capacitance C is given by

$C = \dfrac{\epsilon_0A}{d}$

so we can rewrite the expression for the energy as

$U = \dfrac{Q^2d}{2\epsilon_0 A}$

Increasing the charge from $3\:\mu\text{C}\:\text{to}\:9\:\mu\text{C}$ means that you're tripling the charge. The same thing is true when you increase the distance from 1.8 mm to 5.4 mm, i.e., you triple the separation distance. So the new energy U' is given by

$U' = \dfrac{Q'^2d'}{2\epsilon_0 A}$

$\:\:\:\:\:\:= \dfrac{(3Q)^2(3d)}{2\epsilon_0 A}$

$\:\:\:\:\:\:= 27\left(\dfrac{Q^2d}{2\epsilon_0 A}\right)$

$\:\:\:\:\:\:= 27U$

As we can see, tripling both the charge and the separation distance result in the 27-fold increase in its stored energy U.

7 0

3 years ago

A charge of +2.20 μC is at the origin and a charge of -3.20 μC is on the y axis at y = 40.0 cm. 1) What is the potential at poin

ehidna [41]

Explanation:

Formula to calculate the potential at point "a" is as follows.

$V_{a} = \frac{kq_{1}}{r_{1}} + \frac{kq_{2}}{r_{2}}$

= $\frac{9 \times 10^{9} \times 2.2 \times 10^{-6}}{0.4} + \frac{9 \times 10^{9} \times -3.20 \times 10^{-6}}{\sqrt{(0.4)^{2} + (0.4)^{2}}}$

= -4590 V

Therefore, we can conclude that the potential at point a, which is on the x axis at x = 40.0 cm is -4590 V.

7 0

3 years ago

18 year old Bianca ran sprints for 30 seconds as fast as she could run, then checked her pulse abd realized it was 8 beats above

mixas84 [53]

Answer:

210

Explanation:

A person's estimated maximum heart rate is 220 minus their age. Since she is 18, her maximum is 220 - 18 = 202. As hers was 8 beats over her maximum, simply add 8 to 202 to find 210 as her heart rate.

3 0

3 years ago

What determines the mass of an object

vlabodo [156]

Answer:

Mass is a fundamental property of the object.
The mass of an object is a measure of objects resistance to acceleration, sometime also called "Inertia".
It is a numerical measure of its inertia.
Mass measured by using balance

7 0

3 years ago