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iogann1982 [59]
4 years ago
15

A ball A is thrown vertically upward from the top of a 30-m-high building with an initial velocity of 5 m/s. At the same instant

another ball B is thrown upward from the ground with an initial velocity of 20 m/s. Determine the height from the ground and the time at which they pass.

Physics
1 answer:
Serga [27]4 years ago
6 0

Explanation:

Below is an attachment containing the solution.

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Electrons are charged particles. the amount of charge that passes per unit time is called
Vlad [161]
I think it is called the CURRENT. 

Hope it helps. Good luck :)
3 0
4 years ago
What impulse occurs when an average force of 7.0 N is exerted on a cart for 2.5 s ?
makkiz [27]

Answer:1.7\times 10

Explanation:

Given

Force F=7 N

time interval t=2.5 s

Impulse is given by =Force \times time\ interval\ for\ applied\ force

Impulse=7\times 2.5=17.5

For two significant Figure

Impulse=1.7\times 10

                       

7 0
3 years ago
Which of the following occurs during the evolution of a star?
UNO [17]
B
Hope this helps! ^-^
5 0
2 years ago
How many liters in 1 milliliter ??? HELP PLZ
Crazy boy [7]

Answer:

0.001 liter

Explanation:

Milliliter to liter formula-

Divide the volume value by 1000.

1 ml. divided by 1,000 is 0.001.

This is the correct formula and answer.

Hope this helps!

4 0
4 years ago
Read 2 more answers
A certain sea cow can paddle 2.0 m/s in still water. If she attempts to cross a river, from the south bank to the north with a c
aliina [53]

Answer:

v = 3.6m / s ,   θ = 56º

Explanation:

This is a relative speed exercise, let's use the Pythagorean theorem

        v = √ (v₁² + v₂²)

where v₁ is the speed of the sea still water and v₂ the speed of the current

         

let's calculate

       v = √ (2² + 3²)

        v = 3.6m / s

to find the direction we use trigonometry

      tan θ = v₂ / v₁

       θ = tan⁻¹ (v₂ / v₁)

let's calculate

       θ = tan⁻¹ (3/2)

        θ = 56º

4 0
3 years ago
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