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3 years ago

The part of the scientific method where we record data is the

Physics

2 answers:

STatiana [176]3 years ago

8 0

Answer is D) experiment because you have to record step by step

tensa zangetsu [6.8K]3 years ago

3 0

The answer is d. experiment

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The solar system is of largely uniform composition. (T/F)

vaieri [72.5K]

Answer:

False

Explanation:

Sun mass is dominating in Solar system as compared to other planets, asteroids and comets. Sun itself accounting for the 99.9% of the mass of the solar system. Hence the gravitational force exerted by the Sun dominates the other objects in the solar system. So we can conclude that solar system has non-uniform composition. The given statement is false

3 0

3 years ago

Which acids are found in acid precipitation?

lapo4ka [179]

understand friend

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3 years ago

An ambulance is currently traveling at 25 m/s, and is accelerating with a constant acceleration of 5 m/s^2. The ambulance is att

bazaltina [42]

Answer:

PLEASE MARK ME BRAINLIEST!!!

Explanation:

Given initial velocity of ambulance

v0=18m/s , acceleration a=5m/s2

To find distance, x=?

First we need to calculate the time for which it acquires 30\,m/s. For that use equation

v=v0+at

30=18+5×t

⇒t=30−185=125seconds

Distance travelled by the ambulance

x=v0t+12at2

x=(18×125)+12×5×(125)2

x=43.2+2.5×5.76=43.2+14.4

x=57.6m

Therefore the ambulance has to travel 57.6 m to match the velocity of car.

5 0

2 years ago

A punter wants to kick a football so that the football has a total flight time of 3.7 s and lands 56m away (measured along the g

Irina18 [472]

The maximum height is 16.8 m

Explanation:

In order to find the maximum height reached by the football, we can just analyze its vertical motion.

The vertical motion of the ball is a free fall motion, affected only by the force of gravity. So it is a uniformly accelerated motion, and we can use suvat equations.

First of all, we notice that the motion of the ball is symmetrical, so the time taken to reach the maximum height is equal to the time needed to fall down: Since the total time of flight is

T = 3.7 s

It means that the time to reach the maximum height is

$t=\frac{T}{2}=\frac{3.7}{2}=1.85 s$

We can now find the maximum height reached using the equation:

$s=vt-\frac{1}{2}at^2$

Where:

s is the vertical displacement (the maximum height)

v = 0 is the velocity of the ball at the maximum height

t = 1.85 s is the time

$a=g=-9.8 m/s^2$ is the acceleration of gravity

Solving for s,

$s=-\frac{1}{2}(-9.8)(1.85)^2=16.8 m$

Learn more about free fall motion here:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

6 0

3 years ago

A diverging lens of focal length 18.0m is used to view a shark that is 90.0m away from the lens. If the image formed is 1.0m lon

Reil [10]

Answer:

i. + 22.5 m ii. 4.0 m

Explanation:

i. Image distance

Using the lens formula

1/u + 1/v = 1/f where f = focal length = + 18.0 m, u = object distance = distance of shark away from lens = + 90.0 m and v = image distance from lens = unknown

So, we find v

1/v = 1/f - 1/u

= 1/+18 - 1/+90

= (5 - 1)/90

= 4/90

v = 90/4

= + 22.5 m

So the image is real and formed 22.5 m away on the other side of the lens.

ii Length of Shark

Using the magnification formula, m = image height/object height = image distance/object distance. image height = 1.0 m where object height = length of shark.

m = image distance/object distance

= v/u

= +22.5/+90

= 0.25

0.25 = image height/object height

So,

object height = image height/0.25

= 1.0 m/0.25

= 4.0 m

So, the length of the shark is 4.0 m

7 0

3 years ago