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3 years ago

Does anyone know? Please help! Thank you!

Physics

2 answers:

Vedmedyk [2.9K]3 years ago

7 0

B density will increase

daser333 [38]3 years ago

6 0

B it increased because it put more pressure and volume that makes it more

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An object starts from rest, and accelerates at 2m/s2 for 10s. How far has it gone in that time

blagie [28]

Answer:

100m

Explanation:

$s = ut + \frac{1}{2} a {t}^{2}$

u=0;t=10sec;a=2m/s²

$s = 0(10) + \frac{1}{2}(2 \times {10}^{2} )$

s=10²;100m

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3 years ago

B) A skilled jet fighter flies a stunt plane in a vertical circle of 1200 ft

vodka [1.7K]

Answer:I need the ans to this one too

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2 years ago

A football punter accelerates a .55 kg football

Ronch [10]

Answer:

17.6 N

Explanation:

The force exerted by the punter on the football is equal to the rate of change of momentum of the football:

$F=\frac{\Delta p}{\Delta t}$

where

$\Delta p$ is the change in momentum of the football

$\Delta t=0.25 s$ is the time elapsed

The change in momentum can be written as

$\Delta p = m(v-u)$

where

m = 0.55 kg is the mass of the football

u = 0 is the initial velocity (the ball starts from rest)

v = 8.0 m/s is the final velocity

Combining the two equations and substituting the values, we find the force exerted on the ball:

$F=\frac{m(v-u)}{\Delta t}=\frac{(0.55)(8.0-0)}{0.25}=17.6 N$

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3 years ago

HELP PLZ ASAP!!

Andre45 [30]

1. The successful launch of communication satellites

2.More people will be interested in studying science

But science would probably be focused on space exploration and there will probably be less scientists in other fields such as chemistry.

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2 years ago

Is pulling a dog a contact force or a non contact force

horrorfan [7]

A contact force since you are making physical contact with the dog

Mark my brainliest please

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2 years ago