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The Age of the Universe

Please help in calculating the Hubble constant, that is, the number of km/s of velocity per Mpc of distance.

Subject:

Physics

Topic:

Other

Posting ID:

2006

OTA ID:

102648

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Calculating the Retarding Force of an Object

What is the rule for calculating the retarding force of something?

Subject:

Physics

Topic:

Other

Posting ID:

2067

OTA ID:

102846

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Forces

What forces are involved with a zipper?

Subject:

Physics

Topic:

Other

Posting ID:

2130

OTA ID:

101230

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Calculating the speed and wavelength of water waves given distance, time and period of oscillation. Attachments in Word.

Water waves in a lake travel 4.4 m in 1.8s. The period of oscillation is 1.2 s. a. What is the speed of water waves? b. What is their wavelength?

Subject:

Physics

Topic:

Other

Posting ID:

2217

OTA ID:

102846

View Details $1.99 Download Add to Cart

Ten questions I have answerd incorrectly

1. A ball is thrown in the air with enough force so that it goes straight up for several Seconds a. What is the velocity of the ball 1 sec before it’s highest point b. What is the change in velocity during this 1 sec interval c. What is the velocity 1 sec after it reaches it’s highest point d. what is the change in velocity during this 1 sec interval e. What is the change in velocity during the 2 sec interval f. What is the acceleration of the ball during any of these time intervals and at the moment the ball has a zero velocity 2. An airplane is flying horizontally with speed 1000 km / h ( 280 m/s) when the Engine falls off. Neglecting air resistance, i... click for more

Subject:

Physics

Topic:

Other

Posting ID:

2581

OTA ID:

102389

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