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4 years ago

11

A girl delivering newspapers travels one block west then three blocks north then five blocks east. what is her resultant displac

ement?

1 answer:

nlexa [21]4 years ago

8 0

3^2+4^2=25^2 = 5 units

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A. Kelvin. It is 32 degrees fahrenheit

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3 years ago

Read 2 more answers

I need help with this please thank you!

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D. A beam balance does not measure mass; it measures weight. The gravitational force of attraction between the earth and an object depend on the mass of the object. ... The beam balance measures the force F exerted by the mass on the beam balance

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3 years ago

1. You and a friend are spending the weekend making up missed lab experiments. You are on to second semester material and are st

goldenfox [79]

Answer:

D) ¼ as large

Explanation:

The magnitude of the electric force between two charges is

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1 and q2 are the magnitudes of the two charges

r is the separation between them

From the formula we see that the magnitude of the force is inversely proportional to the square of the distance.

In this problem, the distance is doubled:

$r'=2r$

So the new force will be

$F'=k\frac{q_1 q_2}{(2r)^2}=\frac{1}{4}k\frac{q_1 q_2}{r^2}=\frac{1}{4}F$

So the force will decrease to 1/4 of its original value.

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3 years ago

After World War II the U.S. Air Force carried out experiments on the amount of acceleration a human can survive. These experimen

adell [148]

Answer:

11.9051g

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

g = Acceleration due to gravity = 9.8 m/s²

$v=u+at\\\Rightarrow a=\dfrac{v-u}{t}\\\Rightarrow a=\frac{70-140}{0.6}\\\Rightarrow a=-116.67\ m/s^2$

Absolute value of the (negative) average acceleration is 116.67 m/s²

$\dfrac{a}{g}=\dfrac{116.67}{9.8}\\\Rightarrow a=11.9051g$

The deceleration was 11.9051g

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4 years ago

Which goes to which term?

Nadusha1986 [10]

Answer:

Try your best :)

Explanation:

You got this man I belive in you!!

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3 years ago