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vitfil [10]
3 years ago
7

How is a projectile’s initial speed related to its height and horizontal displacement?

Physics
1 answer:
marta [7]3 years ago
8 0
It really depends on how fast the projectile is going.
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A car travels from point A to point B, moving in the same direction but with a non-constant speed. The first half of the distanc
Dmitrij [34]

Answer:

Explanation:

From A to B

distance traveled with velocity v_1  in time t_1

\frac{d}{2}=v_1t_1----1

from B to C

distance traveled is 0.5 d with v_2  and v_3  velocity for half-half time

\frac{d}{2}=\frac{v_2t_2}{2}+\frac{v_3t_3}{2}----2

divide 1 and 2 we get

\frac{1}{1}=\frac{2v_1t_1}{v_2t_2+v_3t_3}

\frac{t_1}{t_2}=\frac{v_2+v_3}{2v_1}

Now average velocity is given by

v_{avg}=\frac{d}{t_1+t_2}

taking t_1  common

v_{avg}=\frac{2v_1t_1}{t_1(1+\frac{t_2}{t_1})}

v_{avg}=\frac{2v_1}{1+\frac{2v_1}{v_2+v_3}}

v_{avg}=\frac{2v_1(v_2+v_3)}{2v_1+v_2+v_3}  

6 0
4 years ago
point y is in the interior of xwz. given that and are opposite rays and mxwy​4(m​ywz), what is m​ywz?
Xelga [282]

point y is in the interior of xwz. given that and are opposite rays and mxwy​4(m​ywz), m​ywz = 36°

Opposite rays:- Opposite rays are the rays, which shares a common initial point, but points towards opposite directions. Angle between two opposite rays is 180°.

According to the question,

m∠XWY = 4(m∠YWZ) (Given)

As the two rays WX and WZ are opposite rays, the initial points of those are same. Here in the question, it is W.

∴∠XWZ = 180°

∴m∠XWY + m∠YWZ = 180°

⇒ 4(m∠YWZ) + m∠YWZ = 180°

⇒ 5(m∠YWZ) = 180°

⇒ m∠YWZ = 180°/5

⇒ m∠YWZ = 36°

Thus we can conclude that, m∠YWZ = 36°.

To know more about opposite rays refer below link:

brainly.com/question/28216147

#SPJ4

8 0
2 years ago
What do hurricanes, tornadoes, and thunderstorms have in common?
amm1812

Answer:

low pressure systems

Explanation:

with a low pressure system over the area the storm can't form

8 0
3 years ago
If a sound is 30 dB and its absolute pressure was 66 x 10-9 Pa, what must have been the reference pressure?
Ksenya-84 [330]

Given:

I = 30dB

P = 66 × 10^{-9} Pa

Solution:

Formula used:

I = 20\log_{10}(\frac{P}{P_{o}})           (1)

where,

I = intensity of sound

P = absolute pressure

P_{o} = reference pressure

Using Eqn (1), we get:

30 = 20\log _{10}\frac{66\times 10^{-9}}{P^{o}}

P_{o} = \frac{66\times 10^{-9}}{10^{1.5}}

P_{o} = 2.08 × 10^{-9} Pa

4 0
4 years ago
1. If you were the organizer of this dance event, are you favor in moving the date on May? Why
topjm [15]

Answer:

I am in favor of the dance event being in may. Because it is nice weather outside, more people will decide to come and spend their time there. It is also light in the evening in may, meaning that you could have the dance event at any time, and younger people will still feel safe at night, meaning their parents will be more open to lwtting kids go.

6 0
3 years ago
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