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2 years ago

Which has high frequency? i never figure this out

Physics

1 answer:

sashaice [31]2 years ago

4 0

Answer: D

Explanation:

It would be answer D, youre correct. Frequency is how many "cycles" or "things" per second. The reason D looks so different is because the amplitude is not the same.

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What happens when an object is dropped? A. It decelerates at a rate of 9.8 m/s/s. B. It travels 9.8 meters before stopping. C. I

andreev551 [17]

I think its c I really don't take physics but I try to help.

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2 years ago

What is an independent variable?

Natali5045456 [20]

Answer:

The answer is A

Explanation:

Independent variables don't have to depend on other factors of the experiment because they're independent

4 0

2 years ago

In a physics lab experiment, a compressed spring launches a 24 g metal ball at a 35o angle above the horizontal. Compressing the

Levart [38]

Answer:

k = 45.95 N/m

Explanation:

First, we will find the launch speed of the ball by using the formula for the horizontal range of the projectile.

$R = \frac{v_{o}^{2}\ Sin\ 2\theta}{g} \\\\v_{o}^{2} = \frac{Rg}{Sin\ 2\theta}\\$

where,

Vo = Launch Speed = ?

R = Horizontal Range = 5.3 m

θ = Launch Angle = 35°

Therefore,

$v_{o}^{2} = \frac{(5.3\ m)(9.81\ m/s^{2})}{Sin\ 2(35^{o})}\\$

v₀² = 55.33 m²/s²

Now, we know that the kinetic energy gain of ball is equal to the potential energy stored by spring:

$Kinetic\ Energy\ Gained\ By\ Ball = Elastic\ Potential\ Energy\ Stored\ in \ Spring\\\frac{1}{2}mv_{o}^{2} = \frac{1}{2}kx^{2}\\\\k = \frac{mv_{o}^{2}}{x^2} \\$

where,

k = spring constant = ?

x = compression = 17 cm = 0.17 m

m = mass of ball = 24 g = 0.024 kg

Therefore,

$k = \frac{(0.024\ kg)(55.33\ m^2/s^2)}{(0.17\ m)^2} \\$

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2 years ago

Compare wave A with wave B correctly in relation to amplitude.

olga nikolaevna [1]

We know for a fact that D and A can be eliminated from the answer choices because those are both false. we know that both B and C are both very accurate knowing that wave B does have a higher pitch than wave A but also wave A has a louder sound wave than wave B. so i'd say the answer is (C).

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2 years ago

You have a mass of 95 kg.<br> a. What is your weight on Earth?

svp [43]

Answer:

931.63N

Hope this helps :D

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3 years ago