3 years ago

Power can be defined as?

1 answer:

7 0

B. How much work can be done in a given time. That’s why it’s measured occasionally I. “Horsepower.” It’s your ability to work fast and far.

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At what distance of separation, or, must two 5.87*10^-8 coulomb charges be positioned in order for the repulsive force between t

kupik [55]

Explanation:

r^2= 9×10^9 × 5.87×5.87×10^-16 / 64.9

=47.7× 10^-8

so taking sq. root

r = 6.9 ×10^-4 m

r= 6.9×10^ -2 cm

this gives the required seperation

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3 years ago

A 20 MHz carrier is frequency modulated by a sinusoidal signal such that the maximum frequency deviation is 100kHz. Calculate th

Ivan

Answer:

Idk

Explanation:

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3 years ago

A mass weighing 4 pounds is attached to a spring whose constant is 2 lb/ft. The medium offers a damping force that numerically e

Neko [114]

Answer:

the time at which it passes through the equilibrum position is:

t = 0.1 second

Explanation:

given

w= 4pounds

k(spring constant) = 2lb/ft

g(gravitational constant) = 10m/s² = 32ft/s²

β(initial point above equilibrum) = 1

velocity = 14ft/s

attached is an image showing the calculations, because some of the parameters aren't convenient to type.

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3 years ago

A person walks in the following pattern: 3.1 km north, then 2.4 km west, and finally 5.2 km south. a) Sketch the vector diagram

zysi [14]

Answer:

$d = 3.19 km$

direction is given as

$\theta = 41.2 degree$ South of West

Explanation:

Part b)

displacement is given as

$d_1 = 3.1 \hat j$

$d_2 = 2.4 \hat i$

$d_3 = 5.2(-\hat j)$

now we will have

$d = d_1 + d_2 + d_3$

$d = 2.4 \hat i + (3.1 - 5.2)\hat j$

$d = 2.4 \hat i - 2.1 \hat j$

total displacement is given as

$d = \sqrt{2.4^2 + 2.1^2}$

$d = 3.19 km$

direction is given as

$tan\theta = \frac{-2.1}{2.4}$

$\theta = 41.2 degree$ South of West

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4 years ago

19. Use a scale ray diagram to find the image position of

luda_lava [24]

I hope that helps you!!!!!!

7 0

3 years ago