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3 years ago

A car with closed windows makes a left-hand turn. A helium-filled balloon in the car will

1 answer:

8 0

A helium-filled balloon in the car will move to the left

Why?

Okay, so the car makes a left-hand turn. It experiences a centralizing pull to the left. Looking from the car's frame of reference, the balloon experiences a centrifugal force towards the right. Also, the air inside the vehicle experiences a centrifugal force towards the right.
Because of centrifugal force, both the air and the balloon trying to move to the right. But the wind has higher inertia than the balloon. So, air moves to the right of the aircraft and push the plane. Therefore a helium-filled balloon in the car will move to the left.

Hope this helps!

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One positve and one negative charhe jave a force of -5. 00 N between them. If the force changed to -170 N , by what factor did t

stepladder [879]

Answer:

The distance is shortenend by factor .1715

Explanation:

5 n = 1/r^2

sqrt (1/5) = r

170 n = 1 / ( x sqrt(1/5))^2

(xsqrt 1/5)^2 = 1/170

x sqrt 1/5 = .076696

x = .1715

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2 years ago

Bart awoke screaming, shaking, and sweating in his heart was beating rapidly. Homer and Marge, being good parents, had Bart hook

Nuetrik [128]

Answer: D

sleep terror disorder

Explanation:

It is a sleeping disorder causing feelings of panic or dread which typically occur during the first hours of stage 3–4 non-rapid eye movement (NREM) sleep.

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3 years ago

Quick Physics Question

sveticcg [70]

It is Real,Virtual,The Same Size, Inverted

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3 years ago

What is an place where an individual bird lives, called? I need help ASAP

Rama09 [41]

Answer:

A nest

Explanation:

Even When a bird lives alone it is called a nest.

Hope this answer is useful.

6 0

4 years ago

Read 2 more answers

"The International Space Station (ISS) orbits at a distance of 350 km above the surface of the Earth. (a) Determine the gravitat

vagabundo [1.1K]

Answer:

(a) g = 8.82158145 $m/s^2$ .

(b) 7699.990192m/s.

Explanation:

(a) Strength of gravitational field 'g' by definition is

$g = \frac{M_{(earth)} }{r^2} G$ , here G is Gravitational Constant, and r is distance from center of earth, all the values will remain same except r which will be radius of earth + altitude at which ISS is in orbit.

r = 6721,000 meters, putting this value in above equation gives g = 8.82158145 $m/s^2$ .

(b) We have to essentially calculate centripetal acceleration that equals new 'g'.

$a_{centripetal}=\frac{V^2}{r} =g$ here g is known, r is known and v is unknown.

plugging in r and g in above and solving for unknown gives V = 7699.990192m/s.

(c) S = vT, here T is time period or time required to complete one full revolution.

S = earth's circumfrence , V is calculated in (B) T is unknown.

solving for unknown gives T = 5484.3301s = 1.5234hours.

3 0

3 years ago