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3 years ago

Describe an original example of energy changing from one form to two other forms

1 answer:

8 0

1). an electric motor running
Electrical energy is changing into kinetic energy and a little bit of heat

2). light a match
The chemical energy stored in the match head changes into light and heat energy.

3). a light bulb
Electrical energy is changed into light and heat energy.

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How can you find the net force if two forces act in opposite directions?

Tresset [83]

Then the magnitude of the net force is the difference between the two forces,
and its direction is the same as the direction of the greater one.

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3 years ago

Question 8 of 10

Alika [10]

B. Venus hope this helps have a great day

6 0

3 years ago

When you cook a steak, what kind of energy do you increase in the steak?

lina2011 [118]

Answer:

B im pretty sure.

Explanation:

4 0

3 years ago

Consider a metal single crystal oriented such that the normal to the slip plane and the slip direction are at angles of 60 and 3

Scilla [17]

Explanation:

Given that,

Angle by the normal to the slip α= 60°

Angle by the slip direction with the tensile axis β= 35°

Shear stress = 6.2 MPa

Applied stress = 12 MPa

We need to calculate the shear stress applied at the slip plane

Using formula of shear stress

$\tau=\sigma\cos\alpha\cos\beta$

Put the value into the formula

$\tau=12\cos60\times\cos35$

$\tau=4.91\ MPa$

Since, the shear stress applied at the slip plane is less than the critical resolved shear stress

So, The crystal will not yield.

Now, We need to calculate the applied stress necessary for the crystal to yield

Using formula of stress

$\sigma=\dfrac{\tau_{c}}{\cos\alpha\cos\beta}$

Put the value into the formula

$\sigma=\dfrac{6.2}{\cos60\cos35}$

$\sigma=15.13\ MPa$

Hence, This is the required solution.

3 0

4 years ago

Maggie is a member of her school’s environmental club and is interested in recycling. She asks the question, “How does exposure

Juli2301 [7.4K]

Plastics are marked as the most important factor in degrading of environment about three to five hundred years to decompose completely hence the more production of plastic the more is the adverse effect on the environment. Using recyclables plastic can decrease the production of plastic on daily basis thereby decreasing certain quantity of plastic that is present in the environment.

Hence maggie’s question should be reconstructed to form a scientific question in this way. How can using recyclable plastic reduce its exposure in environment?

3 0

4 years ago