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fenix001 [56]
3 years ago
14

Astronomers think most galaxy interactions took place at redshifts of greater than 1 because

Physics
1 answer:
Evgesh-ka [11]3 years ago
4 0
Because they are moving away from us.
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A student conducted an experiment to measure the acceleration due to gravity 'g' of a simple pendulum.
valina [46]
I think i used calulater and it gives me 47.5
5 0
4 years ago
A train travels 120 km in 2 hours and 30 minutes. What is its average speed?
ivann1987 [24]

Answer:

13.33 or 13 1/3m/s (meters per second)

Explanation:

In physics, we use the basic units of meters and seconds. So first convert (km) into meters (m) and also hours and minutes into seconds (s). We end up with 120000m and 9000s. Then divide the 120000m by the 9000s and you end up with 13.33 or 13 1/3 m/s.

5 0
3 years ago
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Radio stations use electromagnetic waves for broadcasting. The chart shows different frequencies of waves used by radio stations
nlexa [21]
Radio Station W as the slower the frequency the longer the wave length
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3 years ago
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A current of 9 A flows through an electric device with a resistance of 43 Ω. What must be the applied voltage in this particular
NeTakaya
Answer:
387 volts

Explanation:
Ohm's law is used to relate voltage, current and resistance.
The formula is as follows:V = I * R
where:
V is the applied voltage (measured in volts)
I is the current flowing (measured in amperes)
R is the resistance (measured in ohm)

In the given, we have:
current (I) = 9 amperes
resistance (R) = 43 ohm

Substitute with the givens in the above formula to get the voltage as follows:
V = 9 * 43
V = 387 volts

Hope this helps :)
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3 years ago
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15 POINTS PLEASE HELP! NO GUESSING
torisob [31]
He answer is A. <span>encourage agricultural usage in the watershed

if you want to read it for yourself go to
www.nature.org/ourinitiatives/regions/northamerica/unitedstates/indiana/journeywithnature/watersheds...

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3 years ago
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