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3 years ago

A

1 answer:

3 0

you can swing your leg so it can't be kick, and remove up doesn't make sense and dodging it won't get you anywhere, so scooping it

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A distance-time graph indicates that an object travels 2 m in 2 s and then travels another 80 m during the next 40 s. What is th

kumpel [21]

The average speed of the object is given by the ratio between the total distance covered and the total time needed for the motion:
$v= \frac{S}{t}$

The total distance covered is:
$S=2m + 80 m = 82 m$
while the total time of the motion is
$t=2s+40 s=42 s$

Therefore, the average speed of the object is
$v= \frac{S}{t}= \frac{82 m}{42 m}=1.95 m/s$

3 0

3 years ago

A man 6.00 ft tall approaches a street light 15.0 ft above the ground at the rate of 4.00 ft/s. How fast is the end of the man

klio [65]

Answer:

$\frac{dx}{dt} = 10 ft/s$

Explanation:

As per given figure let say the tip of the shadow is at distance "x" from the base of the lamp

so here we have

$\frac{x}{15} = \frac{x - y}{6}$

so we have

$6x = 15 x - 15 y$

$15 y = 9 x$

now we have

$5\frac{dy}{dt} = 2\frac{dx}{dt}$

$5(4) = 2\frac{dx}{dt}$

$\frac{dx}{dt} = 10 ft/s$

7 0

3 years ago

Check the boxes of all the TRUE statements about weight and the acceleration due to gravity.

vlada-n [284]

A is the answer because it is the answer

7 0

2 years ago

Wind blows from what pressure to what pressure

viva [34]

This is called the coriolis effect. So in the northern hemisphere, winds blow clockwise around an area of high pressure and counter-clockwise around low pressure. Not only do differences in air pressure help determine wind speed and direction, they help forecast precipitation and clear weather.

5 0

2 years ago

What is the magnification when an object is placed at 2f from the pole of the convex mirror?

Gekata [30.6K]

Answer:

Linear magnification = 1/3

Explanation:

Given:

Convex mirror

Object's distance from pole = 2f

Find:

Linear magnification

Computation:

Object distance, u = −2f

So,

1/v + 1/u = 1/f

1/v + 1/(-2f) = 1/f

1/v = 1/f + 1/2f

BY taking LCM

1/v = 3 / 2f

v = 2f / 3

Magnification, M = -v / u

So,

Magnification, M = (2f / 3) / 2f

Magnification, M = 2f / 6f

Magnification, M = 2 / 6

Linear magnification = 1/3

5 0

2 years ago