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aalyn [17]
4 years ago
14

25 POINTS!!!! PLS HELP

Physics
1 answer:
postnew [5]4 years ago
7 0

Answer:

J. 0-1 sec

Explanation:

When stone is moving up, it stops in the highest point (speed=0 m/s) before falling down. Because the acceleration of gravity is directed down.

So, the highest speed  0-1 sec.

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If I exert a 203 N force on a 58 kg box, what will the acceleration of the box be?
Anit [1.1K]

Answer:

<h2>3.5 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

m is the mass

f is the force

From the question we have

a =  \frac{203}{58} =  \frac{7}{2}   \\

We have the final answer as

<h3>3.5 m/s²</h3>

Hope this helps you

7 0
3 years ago
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Th
LiRa [457]

Answer:

A) total intensity = 5x10^-4W/m2

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Explanation:

Detailed explanation and calculation is shown in the image below

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3 years ago
What does the trough of a wave refer to? A. the highest point on the wave B. the lowest point of the wave C. the midline of the
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B. It refers to the lowest point
4 0
3 years ago
Read 2 more answers
1. What is the common formula for work?<br>a. W=FAV<br>c. W=Fd2<br>b. W=Fd<br>d. W= F2d​
NISA [10]

Answer:

Your answer would be b. W=Fd. Hope this helps!

3 0
4 years ago
Read 2 more answers
The coefficient of static friction between car's tires and a level road is 0.80 If car to be stopped in time of 3.0 sec its spee
Vlad1618 [11]

Answer:

23.5 m/s

Explanation:

The velocity of the car in decelerated motion is given by

v = u + at

where

v = 0 is the final velocity

u is the initial velocity

a is the acceleration of the car

t = 3.0 s is the time it takes for the car to stop

The acceleration of the car is given by the frictional force, which is the only force acting on the car along the direction of motion, so:

ma = -\mu mg\\a = -\mu g = -(0.80)(9.8 m/s^2)=-7.84 m/s^2

where

\mu=0.80 is the coefficient of friction

Solving the previous equation for u, we find the initial velocity:

u=v-at=0-(-7.84 m/s^2)(3.0 s)=23.5 m/s

4 0
4 years ago
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