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3 years ago

Is 30 minutes to nine the same as 30 minutes after 8 in life

2 answers:

8 0

Yes. In real life, those are both the same time.

If somebody said she'll meet you on the corner at 30 minutes to nine,
and you arrived there at 30 minutes after eight, then you both arrived
on the corner at exactly the same time. In real life.

skad [1K]3 years ago

5 0

Yes it is the same because 30 minutes before 9 is 8:30 and 30 minutes after 8 is 8:30

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Answer:

13 u2 = 0 – (2 × –2 m/s2 × 6 m) = 24, u = 4.9 m

Explanation:

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3 years ago

Explain what effect greenhouse gasses have on climate. How do they have this effect?

Paraphin [41]

Answer:

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3 years ago

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Which has the same meaning as air pressure?

SVETLANKA909090 [29]

B) atmosphere pressure, i believe

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3 years ago

An object 16.8 cm tall is placed in front of a converging lens. A real image, 46 cm tall, is formed on the other side of the len

worty [1.4K]

Answer:

2.74

Explanation:

Magnification = image distance/object distance

Mag = v/u

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Hence the magnification is 2.74

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3 years ago

A goalie kicks a soccer ball straight vertically into the air. It takes 5.00 s for the ball to reach its maximum height and come

Yuliya22 [10]

Answer:

(a) vo = 24.98m/s

(b) t = 5.09 s

Explanation:

(a) In order to calculate the the initial speed of the ball, you use the following formula:

$y=y_o+v_ot-\frac{1}{2}gt^2$ (1)

y: vertical position of the ball = 2.44m

yo: initial vertical position = 0m

vo: initial speed of the ball = ?

g: gravitational acceleration = 9.8m/s²

t: time on which the ball is at 2.44m above the ground = 5.00s

You solve the equation (1) for vo and replace the values of the other parameters:

$v_o=\frac{y-y_o+1/2gt^2}{t}$

$v_o=\frac{2.44m-0.00m+1/2(9.8m/s^2)(5.00s)^2}{5.00s}\\\\v_o=24.98\frac{m}{s}$

The initial speed of the ball is 24.98m/s

(b) To find the time the ball takes to arrive to the ground you use the equation (1) for y = 0m (ground) and solve for t:

$0=24.98t-\frac{1}{2}(9.8)t^2\\\\t=5.09s$

The time that the ball takes to arrive to the ground is 5.09s

5 0

3 years ago