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Natalija [7]
3 years ago
8

A car with a mass of 1500 kg is pulled by a rope that is horizontal to the ground. The tension in the rope is 2000 N and a frict

ion force of 350 N opposes the car's motion. What is the magnitude of the car's acceleration?
Physics
1 answer:
Tanzania [10]3 years ago
7 0

Answer:

Explanation:

Assuming the ground is level as well.

F = ma

a = F/m

a = (2000 - 350) / 1500

a = 1.1 m/s²

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Which of the following occurs when a covalent bond forms?
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<em>B) Electrons in valence shells are shared between nuclei.</em>

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Electricity can travel in a(n) _______ circuit.
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A certain pendulum oscillates back and forth every 3.00s . What would the new period be, in s , if the pendulum were one-half of
MAVERICK [17]

Answer:

2.122 second

Explanation:

T1 = 3 s

L1 = L

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As we know the time period of a simple pendulum is related by the length of the pendulum as

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Here, only the length of pendulum changes and the value of g is constant so,

\frac{T_{2}}{T_{1}} =\sqrt{\frac{L_{2}}{L_{1}}}

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4 0
3 years ago
A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours. What is
Andreas93 [3]

Answer:

51 mph

Explanation:

Given: A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours.

Formula: Speed=\dfrac{Distance}{Time}

Let speed of aircraft be x mph and speed of wind y mph

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Actual speed of aircraft = x + y

                    Time taken = 3 hours

                        Distance = 612 miles

\therefore x+y=\dfrac{612}{3}

x+y=204----------(1)

Aircraft against wind:

Actual speed of aircraft = x - y

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\therefore x-y=\dfrac{612}{6}

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By solving equation (1) and equation (2) and we get

x = 153 mph

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Hence, The speed of wind will be 51 mph

6 0
3 years ago
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