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vodka [1.7K]
3 years ago
15

Need a lot of help plz

Physics
1 answer:
Over [174]3 years ago
3 0
Im sorry i do not understand.. But if im reading your paper close enough, im pretty sure you're supposed to put and item and describe it..Hope this helps!
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A player kicks a soccer ball in a high arc toward the opponent's goal. When the soccer ball reaches its maximum height, how does
Artyom0805 [142]

Answer:

The speed of the soccer ball at height point is less than its initial speed

Explanation:

The initial velocity of the soccer can be written in vector form as

v_{i = v cos θ î + v sin θ j

where v_{i  is initial velocity of the ball

           v is the initial speed of the ball

Assume soccer ball is kicked at an angle θ with an horizontal and initial speed vm/s. Its horizontal component will be as,

v_{x} = v cos θ

v_{y} = v sin θ

At the maximum height, the vertical component becomes zero. therefore, the velocity of the soccer at the maximum point can be written as,

v_{m} = v cos θ j

where, v_{m} is velocity of the soccer ball at maximum height

5 0
4 years ago
The hindenburg zeppelin contained 200,000 m^3 of hydrogen, with a density of 0.0899 kg/m^3. What is the mass of the hydrogen?
oksian1 [2.3K]

d=m/v

0.0899=m/200000

or,0.0899*200000=m

m=17980

6 0
3 years ago
Read 2 more answers
A person has been exposed to a particular antigen and now experiences a repeat exposure. What stimulates a quicker immune respon
Anit [1.1K]

Answer:

a. Memory T cells

Explanation:

Memory T cells are actually the antigen-specific T cells that remain long-term after an infection has been eliminated. These memory T cells are quickly converted into large numbers of effector T cells upon reexposure to the specific invading antigen, thus providing a rapid response to past infection that has been experienced before

7 0
4 years ago
What are compounds made of
nlexa [21]
Two or more elements that are chemically combined
6 0
3 years ago
An orchestra is practicing a piece that is to be played at an allegro tempo. The conductor sets a metronome at 160 beats per min
omeli [17]

Answer:

375 ms

Explanation:

the frequency of metronome , f = 160 beats per minute

f = 160 /60 beats per sec

f = 2.67 beats /s

the period of a single beat , T = 1/f

T = 1/2.67 s

T = 0.375 s = 375 ms

the period of a single beat is 375 ms

3 0
3 years ago
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