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Anuta_ua [19.1K]

3 years ago

10

A block is hung by two ropes angled at 30º and 60º respectively. What is the ratio of the tension in the second rope to the tens

ion in the first rope?

1 answer:

WINSTONCH [101]3 years ago

8 0

The ratio between 30° and 60° is 1:2

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Two ice skaters stand together as illustrated in the attached figure. They "push off" and travel directly away from each other,

Tema [17]

By definition, the momentum is given by:
p = m * v
Where,
m = mass
v = speed.
On the other hand,
F = m * a
Where,
m = mass
a = acceleration:
For the boy we have:
p1 = m * v
p1 = (F / a) * v
p1 = ((710) / (9.81)) * (0.50)
p1 = 36.19 Kg * (m / s)
For the girl we have:
p2 = m * v
p2 = (F / a) * v
p2 = ((480) / (9.81)) * (v)
p2 = 48.93 * v Kg * (m / s)
Then, we have:
p1 + p2 = 0
36.19 + 48.93 * v = 0
Clearing v:
v = - (36.19) / (48.93)
v = -0.74 m / s (negative because the velocity is in the opposite direction of the boy's)
Answer:
the girl's velocity in m / s after they push off is -0.74 m / s

6 0

3 years ago

What do all waves carry

MAVERICK [17]

Answer:

the waves carry energy

Explanation:

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2 years ago

What is the primary function of the small intestines

ikadub [295]

Digestion and Absorbtion

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2 years ago

An organism’s scientific name consists of a. its class name and its family name. b. its kingdom name and its phylum name. c. its

mr Goodwill [35]

An organism scientific name consist of : C. its genus name and its species name
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3 years ago

A baseball player throws 4 balls every 20 seconds. what is his throw frequency

frosja888 [35]

Answer:

Frequency, f = 0.2 Hz

Explanation:

We have,

A baseball player throws 4 balls every 20 seconds.

It is required to find the frequency of the baseball.

Frequency of an object is defined as the number of times an event occurs. It is given by number of throws per unit time. It can be given by :

$f=\dfrac{4}{20}\\\\f=0.2\ Hz$

So, the frequency of his throw is 0.2 Hz.

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2 years ago