3 years ago

CHAPTER (1) -

Physics

1 answer:

Alisiya [41]3 years ago

8 0

Answer: the answer is....

Explanation: im only here to get points

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The line of action of the force \vec{F}=5\vec{i}-10\vec{j} F =5 i −10 j N passes through the point with coordinates (in meters

Morgarella [4.7K]

Answer:

$\tau = - 30 \hat k$

Explanation:

Position vector of the point of application of point of application of force is given as

$\vec r = 2\hat i + 2\hat j$

now we have have force

$\vec F = 5 \hat i - 10\hat j$

now the moment of force is given as

$\tau = \vec r \times \vec F$

$\tau = (2\hat i + 2\hat j) \times (5\hat i - 10\hat j)$

$\tau = -20\hat k - 10 \hat k$

$\tau = - 30 \hat k$

5 0

3 years ago

How many simple machines are in a wine opener? The kind with the bottle opener at the head and two "arms."

Blababa [14]

It uses the corkscrew to anchor it to the cork and a lever to pull the cork out

Hope this helps buddy:D

7 0

3 years ago

Read 2 more answers

What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2

Nimfa-mama [501]

<span>I believe this question has additional detail which stated that during the 1st half, his speed was 2.01 m/s. From this we can calculate his speed during the second half, v2, using the formula:</span>

v_ave = (v1 + v2) / 2

2.05 m/s = (2.01 m/s + v2) / 2

4 0

3 years ago

What type of image can be larger or smaller than the object?

Stolb23 [73]

It’s D. An enlargement (hope this helps!)

4 0

3 years ago

What does the slope of the curve on a distance vs time graph represent?

Lilit [14]

Slope of a curve Y plotted against X is mathematically given as

$slope = \frac{dy}{dx}$

now here we can see that if similarly graph is plotted against distance and time then slope is given as

$slope = \frac{dx}{dt}$

here we can say that above is ratio of small distance and very small interval of time.

so here we can say that this ratio of distance and time for very small interval of time is known as instantaneous speed of the object which is falling freely under gravity.

So here slope of the graph will represent the speed at a given instant.

6 0

3 years ago