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Greeley [361]
3 years ago
5

A rollerblader is blading along the sidewalk. Which forms of measurement would be the best to use to determine the rollerblader'

s speed?
Physics
1 answer:
Greeley [361]3 years ago
3 0
You would use distance an time formula to mathmaticly solve

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How many minutes will it take to drive to los angeles from san francisco if an average speed of 72mi/hr is maintained?
Sholpan [36]
The distance between Los Angeles and San Francisco is approximately 381.9mi. 
Divide this distance by the speed.
381.9/72 = 5.3
You are left with the time in hours. To convert to minutes, multiply by 60. 
5.3*60 = 318.25

Therefore, it will take 318.25 minutes.
6 0
3 years ago
Which of the following represents a covalent compound?<br><br> KF<br> NaCl<br> SBr3<br> Mg2O
slava [35]

Answer:

SBr3 is a covalent compound

5 0
4 years ago
A projectile is fired with a velocity of 22 m/s at an angle of 25°. What is the vertical component of the velocity?
7nadin3 [17]

Answer:

Vertical component of velocity is 9.29 m/s

Explanation:

Given that,

Velocity of projection of a projectile, v = 22 m/s

It is fired at an angle of 22°

The horizontal component of velocity is v cosθ

The vertical component of velocity is v sinθ

So, vertical component is given by :

v_y=v\ sin(25)

v_y=22\ m/s\times\ sin(25)

v_y=9.29\ m/s

Hence, the vertical component of the velocity is 9.29 m/s

3 0
4 years ago
If Sarah melts 10g of tin. What mass of melted tin would she have at the end of the experiment?​
Nastasia [14]

Answer:

10g

Explanation:

As the Law of Conservation of Mass states that " Mass can neither be created nor be destroyed in a chemical reaction".

Though melting of tin isn't a chemical change, the same logic is applied here...

Hence,

The mass of tin will be 10 g itself...

7 0
4 years ago
Read 2 more answers
A 150g copper bowl contains 220g of water, both at 20.0oC, A very hot 300 g copper cylinder is dropped into the water, causing t
andrezito [222]

Answer:

chk photo

Explanation:

3 0
3 years ago
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