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Physics

Finley Copeland

Why does a gymnast rub powder on his hands before exercising on a set of parallel bars? (I need a scientific answer)

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Physics

Rodolfo Walter

Which expression is a measurement of density? 5.2 cm 3 0.71 mg 20 g/cm 2 5.13 kg/l?

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Physics

Villegas

Which of these statements is a fundamental part of Keynesian economics?

a. The federal government should have a balanced budget every year to protect economic growth.

b. The government should reduce taxes to promote economic growth by increasing aggregate supply.

c. The government can use deficit spending to increase aggregate demand and pull the economy out of recession.

d. The economy will only reach equilibrium and prosperity through the self-regulation of the free market.

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Physics

Frida Hays

Hiroto needs to record the volume of liquid in a graduated cylinder. He holds the graduated cylinder up at eye level, but it is slightly tilted. Hiroto records the volume as 32 mL. The actual volume is 30 mL. What type of error did Hiroto make? What will be the effect of this error?

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Physics

Cristal Davidson

The waste products of combustion leave the internal combustion engine through the: A. crankshaft, B. exhaust valve. C. cylinder. D. intake valve.

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Physics

Pooh Bear

How can you make your motor run in reverse? make sure to try it?

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Physics

Guest

Which term refers to the process by which land is worn way by natural forces or human acticity?

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Physics

Randall Guerrero

A hungry 181 kg lion running northward at 71.0 km/hr attacks and holds onto a 38.6 kg Thomson's gazelle running eastward at 63.8 km/hr. Find the final speed of the lion-gazelle system immediately after the attack.

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Physics

Guest

An apple falls from an apple tree growing on a 20o slope. the apple hits the ground with an impact velocity of 8 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

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Physics

Gunnar Reid

A 140 g ball at the end of a string is revolving uniformly in a horizontal circle of radius 0.537 m. The ball makes 2.27 revolutions in a second. What is its centripetal acceleration?

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Physics

Charlize Gross

A 32kg kid on a sled sliding over some rough snow is acted on by a frictional force which reduces its velocity form 8.5 m/s to 4.1 m/s in 3.0 seconds what is the magnitude of the frictional force?

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Physics

Beatrice Haas

Yellow light with a wavelength of 5.89 x 10-7m travels through quartz glass with a speed of 1.94 x 108 m/s. What is the frequency of the light?

A) 3.29 Hz

B) 3.04 x 10^-15 Hz

C) 30.36 Hz

D) 3.29 x 10^14 Hz

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Physics

Nibbles

What type of OS is very fast and small, and is often embedded, or built into the circuitry of a device?

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Physics

Jaiden

What is the magnitude of the final velocity of the combined cars?

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Physics

Kasey Gross

It is a science question and the question is that which type of cloud would most likely produce a thunderstorm

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