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Nimfa-mama [501]
3 years ago
6

Consider the displacement vectors Ā=(i +6j)m, B = (3i– 7j)m,

Physics
1 answer:
andrezito [222]3 years ago
8 0

Answer:

Dx = -0.5

Dy = -0.25

Explanation:

Two vectors are given in rectangular components form as follows:

A = i + 6j

B = 3i - 7j

It is also given that:

A - B - 4D = 0

so, we solve this to find D vector:

(i + 6j) - (3i - 7j) - 4D = 0

- 2i - j = 4D

D = - (2/4)i - (1/4)j

D = - (1/2)i - (1/4)j

<u>D = - 0.5i - 0.25j</u>

Therefore,

<u>Dx = -0.5</u>

<u>Dy = -0.25</u>

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Explanation:

Given that,

Weight of water = 25 kg

Temperature = 23°C

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Distance = 5 m

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T_{2}=23+\dfrac{1568}{25\times4.18\times10^{3}}

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(d). The amount of heat removed from the water to return it to it initial temperature is the change in internal energy.

The amount of heat is 1568 J.

Hence, This is the required solution.

6 0
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If the forces acting on an object are balanced, the object may change speed, change direction, or do both. Please select the bes
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A 10 ohms resistor is powered by a 5-V battery. The current flowing<br> through the source is:
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