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Cerrena [4.2K]
2 years ago
8

1.1

Physics
1 answer:
podryga [215]2 years ago
7 0

  • Biosphere: The living spaces of living and non-living things are called habitats.
  • Ecosystem: They are natural areas where living and non-living interactions occur.
  • Hydrosphere: Water is sphere. It is the layer formed by water bodies such as oceans and seas in the world.
  • Lithosphere: It is a stone sphere. It is the layer formed by rock and terrestrial regions in the world.
  • Atmosphere: Air is sphere. It is the layer on Earth where we can breathe and absorb ozone rays. The troposphere consists of the stratosphere, the mesosphere, and the thermosphere.
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marissas car accelerates uniformly at a rate of -2.60m/s^2. how long does it take for marissas car to accelerate from a velocity
zlopas [31]

Answer:

1.02s

Explanation:

In this situation the following equation will be useful:



Where:

 is Marissa's car  final velocity

 is Marissa's car initial velocity

 is Marissa's car constant acceleration  (assuming this is the acceleration, since 1269 m/s^{2} does not make sense)

 is the time  it takes to accelerato from  to 

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The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel
erastovalidia [21]

Answer:

B

Explanation:

8 0
3 years ago
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In doing a load of clothes, a clothes dryer uses 15 A of current at 240 V for 55 min. A personal computer, in contrast, uses 2.7
KatRina [158]

Answer:

Available usage time for the computer = 10.185 hrs

Explanation:

for the dryer;

I = 15 A,    V=240 V  ,  t= 55min,

convert time from min to sec. t = 55*60 =3300 sec

Energy = IVt

Energy = 15*240*3300

Energy = 11,880,000 J

            =11,800 KJ

using the energy for the clothes dryer to calculate for the time spent on the computer,

Energy = IVt

for the computer;

I = 2.7A    V=120V , t=?

t=\frac{energy}{IV}

t=\frac{11,800,000}{2.7*120}

t=36,666.7sec

convert this value to hour by dividing by 3600

t=\frac{36,666.7}{3600} \\t=10.185hrs

5 0
2 years ago
Name an element in the same family as sodium
AlladinOne [14]

Answer:

The Alkali Metals

sodium is a member of the alkali metal family with potassium (K) and lithium (Li). Sodium's big claim to fame is that it's one of two elements in your table salt. When bonded to chlorine (Cl), the two elements make sodium chloride (NaCl).

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2 years ago
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What does Newton’s second law predict about the acceleration if the net force acting on an object increases?
Lorico [155]
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
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2 years ago
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