2 years ago

A car traveling 35 km/hr accelerates to a speed of 45 km/hr in .25 hr. What is its acceleration

Physics

1 answer:

ahrayia [7]2 years ago

6 0

Answer:

a=40Km/hr^2

Explanation:

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Answer: $4.65\ m/s$

Explanation:

Given

Distance putty has to travel is 3.5 m

The initial speed of putty is 9.50 m/s

Using equation of motion to determine the velocity of putty just before it hits ceiling

$v^2-u^2=2as$

$\Rightarrow v^2-(9.5)^2=2(-9.8)(3.5)\\\\\Rightarrow v^2=9.5^2-68.6\\\Rightarrow v=\sqrt{90.25-68.6}\\\Rightarrow v=4.65\ m/s$

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2 years ago

A compunds whose empirical formula is xf3 consists of 65% f by mass. what is the atomic mass of x

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Empirical formula of compound is XF3

Compound consist of 65% F

In 100g of compound there is 65 g of F

= 65 / 19 moles of Fluorine = 3.421 moles

So moles of X = 3.421 / 3 = 1.140 moles

And in 100 g X consist of 35 g

So the molar mass of X = 35 / 1.140 = 30.71 g = 31 approximately

And it is the mass of phosphorus

So the empirical formula for the compound is PX3

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3 years ago

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Answer:

The speed velocity and acceleration escape room is an immersive experience for your students. It allows them to demonstrate their knowledge of these principles in a fun and engaging way. Speed Velocity Acceleration Escape Room - Single Student DIGITAL Version

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2 years ago

Scientists use sonar machines in order to map the contour of the ocean floor. The data from the sonar machines make a model of t

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It would be B. since the scanning shows what the terrain is down there

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calculate the load placed 10m from the fulcrum that can be balanced by an effort of 5 N applied at a distance of 4 m from the fu

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Answer:

A = 2 m from fulcrum

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Product of anti clockwise = Product of clockwise moment

5 × 4 = 10 × A

20 = 10 x A

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A = 2 m from fulcrum

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