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djverab [1.8K]
3 years ago
10

Suppose that a passenger intent on lunch during his first ride in a hot-air balloon accidently drops an apple over the side duri

ng the balloon’s liftoff. At the moment of the apple’s release, the balloon is accelerating upward with a magnitude of 4.0 m/s2 and has an upward velocity of magnitude 2 m/s. What is the magnitude of the acceleration of the apple just after it is released?
Physics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0
The magnitude of <span>the acceleration of the apple just after it is released would be 9.8 m/sec^2. The reason being that gravity would be the only force acting on the apple and the acceleration of the balloon would be totally unimportant. I hope that this is the answer that has actually come to your help.</span>
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4 years ago
228 88Ra ^{228}_{\ 88}{\rm Ra} then decays through a series of beta-minus decays; eventually, another isotope of thorium,
dmitriy555 [2]

Answer:

There will be 2 beta particles released in the decay

Explanation:

See the image below

4 0
3 years ago
A 55-liter tank is full and contains 40kg of fuel. Find using Sl units: • Density p. • Specific Weight y • Specific Gravity Answ
Pavlova-9 [17]

Answer:

p = 727.273 kg/m3,  y = 7134.545 N/m^3, SG = 0.7273

Explanation:

Density is simply the amount of mass of a substance per unit of volume. It can be found by dividing the mass in kg by the volume im m^3:

p = \frac{m}{v}  = \frac{40kg}{55lt*\frac{1 m^3}{1000 lt}} = 727.273 kg/m^3

Specific weight is the weight of the substance per unit of volume. The weight is the mass of the material times the gravity, and it represents the force that the earth exerts on an object. Another way of calculate this value, its multiplying the density of the fuel times the gravity. Then:

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Specific Gravity is the ratio of the density of the substance to the density of a reference substance. For liquids, the reference substance is water at 4°C, which has a density of about 1000 kg/m^3.

SG =\frac{ p_{fuel}}{p_{water}}  = \frac{727.273 kg/m^3}{1000 kg/m^3} = 0.7273

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3 years ago
A student claims an object in motion must experience a force to stay in motion. Do you agree or disagree?
Vikki [24]

Answer:

agree because there is always a force that causes motion..

4 0
3 years ago
A projectile is launched horizontally from a raised platform. If air resistance is ignored, then as the projectile falls to the
aliya0001 [1]

<h2>The option ( b ) is appropriate answer </h2>

Explanation:

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Due to this force its vertical component of velocity , which is in the downward direction will be increased .

As there is no force horizontally , the horizontal  velocity of throw will remain constant .

Thus ( b ) option is the correct option .

6 0
3 years ago
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