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solong [7]
3 years ago
5

Calculate the angle θ between the radius-vector of the point and the positive x axis (measured counterclockwise from the positiv

e x axis, within the limits of −180◦ to +180◦ ). Answer in units of ◦
Physics
1 answer:
Y_Kistochka [10]3 years ago
6 0

The point obviously is in the 3rs quadrant

So

စ= tan^-1( y/x)-180

စ= -89.7°

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You kick a soccer ball across a field the ball travels across the field and slowly comes to a stop. Since the ball slowly comes
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Answer:

It slowly decreases and the friction acting on it slowing it down becomes the bigger net force, if that makes sense :)

Explanation:

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3 years ago
Identify two types of simple machines in this compund machine.
sleet_krkn [62]

the answer would be "screw and lever!", thats the answer because the middle is made into a rod of metal rapped in metal to screw into the cork, and the lever part is the two handles on the side to lift it out of the bottle.

4 0
4 years ago
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A Chinook salmon can jump out of water with a speed of 6.70 m/s6.70 m/s . How far horizontally dd can a Chinook salmon travel th
aksik [14]

Answer:

R = 3.88 m

Explanation:

As the Chinook salmon leaves the water till it gets back into the water it is performing a projectile motion with the following parameters:

V₀ = Launch Speed = 6.7 m/s

θ = Launch Angle = 29°

R= Range of Projectile= Horizontal Distance Covered by Chinook salmon= ?

The value of the range of a projectile is given by the following formula:

R = (V₀² Sin 2θ)/g

R = [(6.7 m/s)² Sin {(2)(29°)}/(9.8 m/s²)]

R = [(6.7 m/s)² Sin (58°)/(9.8 m/s²)]

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8 0
4 years ago
What’s the potential difference across a 5.0 ohms resistor that carries a current of 5.0A
vivado [14]

Answer:

The correct answer is B-25 V

Explanation:

We apply Ohm's Law, according to which:

V = i x R

V = 5A x 5Ω

V= 25 V

Being V the potential difference whose unit is the VOLT, i the current intensity (Ampere) and R the electrical resistance (ohm)

3 0
3 years ago
A light wave in space is described by the general function: u(r, t) = 1 (2π) 3/2 Z dk A(k) e i(k·r−ωt) . (1) (a) Find the partic
babunello [35]

Answer:

hello your question is incomplete attached below is the complete question

Answer : attached below

Explanation:

A) finding the particular solution at t = 0

attached below is the detailed solution of the particular solution knowing that t = 0

4 0
3 years ago
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