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Marizza181 [45]
3 years ago
6

Name the net force between objects that allows a car to travel in a circle

Physics
1 answer:
iren [92.7K]3 years ago
6 0
I think centripetal force ☺
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Two carts have a compressed spring between them and are initially at rest. One of the carts has total mass, including its conten
ladessa [460]

Answer:

A) - 1.8 m/s

Explanation:

As we know that whole system is initially at rest and there is no external force on this system

So total momentum of the system must be conserved

so we will have

m_1v_1 + m_2v_2 = 0

now plug in all data into above equation

5(v) + 3(3)

5v = -9

v = -1.8 m/s

so correct answer is

A) - 1.8 m/s

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3 years ago
About three billion years ago, single-celled organisms called cyanobacteria lived in Earth’s oceans. They thrived on the ocean’s
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I think its Oxygen. 
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Write a hypothesis about how the height of the cylinder affects the temperature of the water. Use the "if . . . then . . . becau
AnnyKZ [126]
The statement that can be used to answer this  question is:

"If the cylinder is brought higher then, its temperature when brought down becomes higher because a greater amount of potential energy is converted to thermal energy."

The potential energy is converted to thermal energy when the object is released the velocity becomes higher because of the acceleration due to gravity.
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A certain gasoline engine has an efficiency of 35.3%. What would the hot reservoir temperature be for a Carnot engine having tha
levacccp [35]

Answer:

The temperature of hot reservoir is 669.24 K.

Explanation:

It is given that,

Efficiency of gasoline engine, \eta=35.3\%=0.353

Temperature of cold reservoir, T_C=160^{\circ}C=433\ K

We need to find the temperature of hot reservoir. The efficiency of Carnot engine is given by :

\eta=1-\dfrac{T_C}{T_H}

T_H=\dfrac{T_C}{1-\eta}

T_H=\dfrac{433}{1-0.353}

T_H=669.24\ K

So, the temperature of hot reservoir is 669.24 K. Hence, this is the required solution.

4 0
3 years ago
An AC source drives a sinusoidal current of amplitude I0and frequency ? into an inductor having inductance L and a capacitor hav
lukranit [14]

Answer:

option (D)

Explanation:

In an LC circuit which are connected in series, the current lags by 90 by inductor and current leads by 90 by the capacitor.

So, VL(t) leads IL(t) and Vc(t) lags Ic(t).

5 0
3 years ago
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