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2 years ago

Pls help I give brainLy and a thanks and points

Physics

2 answers:

inna [77]2 years ago

8 0

Yeah yeah I can

But it's you
You're the one that I want
You
Everything that I want
Blue
Nae gyeote naerin blue, modeun ge bakkwieo
Daseotshi oshipsambune i segyeneun areumdaweo

Cuz of imagination
Jeo haneure
Orenjibit mabeobi
Kkeuchi nagi jeone

Cuz of imagination
Geu challae
Can you feel the rush
Can you feel the rush
Shigana meomchweojweo

I wanna stay
(Can you feel the rush)
(Can you feel the rush)

Lina20 [59]2 years ago

5 0

Awww the dog is so cute!

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Which diagram is the best representation of gas molecules in a closed container? A. Diagram A B. Diagram B C. Diagram C D. Diagr

WITCHER [35]

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2 years ago

Since friction is a force,<br> what unit is friction<br> measured In???

dimaraw [331]

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2 years ago

Read 2 more answers

If a ball is launched horizontally at 40 m/s

vaieri [72.5K]

Answer:

40m/s

Explanation:

The horizontal component of velocity remains constant because there are no external forces in that direction

By applying motion equations, V= U+ at

where ,

v - final velocity
u - initial velocity
a-acceleration
t - time

v = u +at

As no force act on the ball ( we neglect air resistance here) no acceleration is seen,

So v = u = 40m/s

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3 years ago

A baseball has a mass of 0.145 kilograms, and a bowling ball has a mass of 6.8 kilograms. What is the gravitational force betwee

Olegator [25]

Quite low

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6 0

2 years ago

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2200 kg semi truck driving down the highway has lost control. The truck rolls across the median and into oncoming traffic. The t

serious [3.7K]

Answer:

The semi truck travels at an initial speed of 69.545 meters per second downwards.

Explanation:

In this exercise we see a case of an entirely inellastic collision between the semi truck and the car, which can be described by the following equation derived from Principle of Linear Momentum Conservation: (We assume that velocity oriented northwards is positive)

$m_{S}\cdot v_{S}+m_{C}\cdot v_{C} = (m_{S}+m_{C})\cdot v$ (1)

Where:

$m_{S}$ , $m_{C}$ - Masses of the semi truck and the car, measured in kilograms.

$v_{S}$ , $v_{C}$ - Initial velocities of the semi truck and the car, measured in meters per second.

$v$ - Final speed of the system after collision, measured in meters per second.

If we know that $m_{S} = 2200\,kg$ , $m_{C} = 2000\,kg$ , $v_{C} = 45\,\frac{m}{s}$ and $v = -15\,\frac{m}{s}$ , then the initial velocity of the semi truck is: