Every 10 seconds a pendulum completes 2 cycles. what are the period and frequency of this pendulum

Answers

Answer 1

Answer:
If it completes 2 cycles in 10 seconds, then each cycle
takes 5 seconds. That's the period.

Frequency = 1 / period = 1 / 5 sec = 0.2 per sec = 0.2 Hz.

Answer 2

Answer: period 5 sec = 1 cycle
f = 1/period
.2

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One example of a ______________ is the U-turn.

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One example of a turnabout is the U turn

What do scientists believe the moon’s core might be formed of?a. Iron
c. Carbon
b. Silicon
d. Lava

Answers

Answer:

A. Iron.

Explanation:

The Moon´s core is smaller in comparison with other terrestrial bodies. About 20% of the entire mass of it is the core.

The moon is composed of distinct crust, mantle, and core. While the crust is composed of freeze magma the core is believed to be formed by a mixture of metallic iron with a small amount of sulfur and nickel.

I hope this answer helps you.

Scientists believe the moon’s core might be formed of iron.

glass is mostly made of silica,which is found in sand. if lead is added to silica to make a crystal vase, the lead is known as the

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Considering that the silica is a solvent, the lead is called the colloid, which is a substance that added to another substance in the matter in which you described.

Robert is accelerating a cart at the rate of 2.2 meters/second2. If the mass in the cart is doubled, and the net force is also doubled, what is the final acceleration?

Answers

f = ma
double f and m gives
(2f) = (2m)a
notice a is unchanged = 2.2
m/s^2

C) The Acceleration Is Doubled

What is this equation for?

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That's the equation for the efficiency of any machine or other system that you use to change energy from one form to another. It says that the efficiency of that device is equal to the work or energy that comes out of it divided by the work or energy that you put into it.

Focus groupsA. are usually composed of 10 to 15 people as participants
B. yield results that are largely dependent on the viewpoint of the researcher
C. always do a good job of representing the broader target market
D. have a low cost per participant

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I think the answer is a

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