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Physics

After completing a scientific investigation, a scientist will draw conclusions about their hypothesis using data they gathered during their investigation.

True

False

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Physics

A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 43.0 vibrations in 29.0 s. A given crest of the wave travels 430 cm along the rope in 14.0 s. What is the wavelength of the wave?

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Physics

A wave is moving at 40 cm/s. Its wave length is 8 cm. what is the frequency of the wave?

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Iliana Villegas

Physics

What is the unit for measuring electric current? volt ampere ohm coulomb

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Physics

All of the bones in your body, with the exception of the hyoid joint in the neck, form a joint with another bone.

True or False?

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Physics

Why do people eat vegetables? Not just to stay healthy! But why else do we eat and need vegetables?

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Clarissa Sexton

Physics

Mr. Franklin uses a machine that has an efficiency of 80%. The machine applies a force of 800 N through a distance of 20 m. Mr. Franklin applies a force of 50 N on the machine. Through what distance does Mr. Franklin apply the force?

a. 4 m

b. 16 m

c. 260 m

d. 400 m

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Physics

Cabbage juice can be used as a pH indicator. Using the above chart, choose all of the statements that are correct

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Physics

A red train traveling at 72km/h and a green train traveling at 144km/h are headed towards each other along a straight, level track. When they are 950m apart, each engineer sees the other's train and applies the breaks. The breaks slow each train at the rate of 1.0m/s^2. is there a collision? if so, give the speed of the red train and the speed of the green train at impact, respectively. If not, give the separation between the trains when they stop.

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Physics

A helicopter flies southeast with a ground speed of 250 km/h. If the wind

speed is 17 km/h southeast, what is the air speed?

A. 249 km/h

B. 251 km/h

C. 233 km/h

D. 267 km/h

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Physics

What is 2.5 * 104 * 3 * 102?

A. 5.0 * 108

B. 5.5 * 106

C. 7.5 * 106

D. 7.5 * 108

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Guillermo Jackson

Physics

An object with a mass of 2000 g accelerates 8.3m/s2 when an unknown force is applied to it what is the amount of the force

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Physics

The turning effect of force is called

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Physics

A 10 Newton effort force is required to lift a 10 kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever? [The fulcrum is placed 0.5m from the box.]

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Physics

Bailee bad a gross income of 2358.33 during each pay period in 2009. if she got paid monthly, how much of her oay was defucted for fica in 2009?

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