PHYSICS HIGH SCHOOL

A scientist wants to learn about Earth's oceans. Which of the following spheres should she most directly study? (2 points)
Oa
Atmosphere
Ob
Cryosphere
Oc
Geosphere
Od
Hydrosphere

Answers

Answer 1
Answer: Hydrosphere - all the waters on the earth’s surface.

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What is the power of a hair dryer if it uses 72,000 joules energy in 60.0 seconds

Answers

Power=Energy
72,000/60 = 1200 watts 
:)

53 yards per hour into inches per week

Answers

53 yards per houris a speed value and when converted gives 320544 inches per week.

What is speed value?

The speed value is defined by the distance traveled by the object with reference to the time. It is a scalar quantity, with a magnitude but no direction. The speed is calculated using the formula:

Speed = Distance ÷ Time


It can be measured in, meters per second, miles per hour, kilometers per hour, etc.


From the known data:
7 days per week
24 Hours per day
3 ft per yard
12 inches per feet

The conversion of yards per hour into inches per week is given as:

= 53 yards per hour × 3 feet per yard × 12 inches per foot × 24 hour per day × 7 day per week

= 53 × 3 × 12 × 24 × 7
= 320,544 inches per week

Therefore, the unit is converted and is 320,544 inches per week.

Learn more about speed, here:
brainly.com/question/10449029

#SPJ5
53 yards per hour would be 320544 inches per week :)


Hope this helps

A man travellers 10 km to the east 20 km to the north. Find distance moved displacement

Answers

x^2=10^2+20^2\n x^2=100+400\n x^2=500\n x=√(500)=10\sqrt5 \approx22.36\hbox{ km}

A bicyclist is in a 50-km race. He says he had an average velocity of 35. What is missing in the cyclist’s velocity? A. units only B. units and distance C. direction only D. units and direction

Answers

A. Units 
the rest can be understand that he did not clarify

What is the difference in electrical potential energy between two places in an electric field?A. current
B. resistance
C. potential difference
D. induction

Answers

I am pretty sure that non of the listed options above is correct. Current 
, resistance, potential difference and induction all don't have  the dimension of an energy that difference in electrical potential energy should have. Quite a tricky question, be careful.

A spider is crawling on a wall. First it crawls 1 meter up, then 1 meter to the left, and then 1 meter down. what is its total displacement

Answers

1 meter up, 1 meter to the left and then 1 metter down.
It goes 1 meter up and 1 meter down, so its in the same place. The only displacement is 1 meter to the left.

Look at picture:

(hope this helps)
1 meter up and then 1 meter left, and then 1 meter down. The total displacement would be 1 meter. See Ayah's pic to help you understand more better:)
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You pull a sled with a package on it across a snow-covered flat lawn. If youapply a force of 65.1 N to the sled, it accelerates at 1.24 m/s2. What is thecombined mass of the package and the sled? (Assume there is no friction.)
A precipitation reaction is a reaction between two aqueous __________ that results in the formation of a solid compound.