3 years ago

Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 3 s. What is your acceleration?

Physics

1 answer:

lisov135 [29]3 years ago

7 0

You asked the question twice I answered it on the last one

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Does the car traveling the longest time always travel the greatest distance? Why or why not?

andre [41]

No becuase the simplified case of constant speed, use the formula:
<span>distance = speed x time</span>

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2 years ago

If you have 3 equal plates hanging 2 spaces from the center of a balance, at what distance would you need to place 2 equal plate

Reptile [31]

You answere would be C. 3 spaces

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2 years ago

A metal sample of mass M requires a power input P to just remain molten. When the heater is turned off, the metal solidifies in

vovangra [49]

Answer:

L = Pt/M

Explanation:

Power, P= Q/t = mL/t

we know that, (Q=m×l)

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2 years ago

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zubka84 [21]

Answer:

$4.32\cdot 10^5 J$

Explanation:

Power is related to energy by the following relationship:

$P=\frac{E}{t}$

where

P is the power used

E is the energy used

t is the time elapsed

In this problem, we know that

- the power of the fan is P = 120 W

- the fan has been running for one hour, which corresponds to a time of

$t = 1 h \cdot (60 min/h)(60 s/min)=3600 s$

So we can re-arrange the previous equation to find E, the energy (in the form of thermal energy) released by the fan:

$E=Pt=(120 W)(3600 s)=4.32\cdot 10^5 J$

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2 years ago

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What type of rock forms due to heating and cooling?

tatuchka [14]

The type of rocks are magma and the igneous rocks.

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2 years ago

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