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Agata [3.3K]
3 years ago
10

What is the helmet for

Physics
1 answer:
BabaBlast [244]3 years ago
8 0

Answer:

Explanation:

a helmet is used for our safety this  piece of equipment is used to protect us from getting any injury's on our heads such as concussions getting a cut on your head etc.

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How does the science of heat transfer differ from the science of thermodynamics?
mariarad [96]

Answer:

The science of thermodynamics deals with the fundamental laws that guide how physical processes occur in relation with the energy transfer. When a system or process changes from one state of equilibrium to another, thermodynamics is interested with the amount of heat transfer during the process. On the other hand, the science of heat transfer is simply about the rate of heat and temperature distribution inside a system at a particular point in time.

Explanation:

3 0
3 years ago
Three forces act on an object. a 3 n force acts due east and a 8 n force acts due north. if the net force on the object is zero,
Bingel [31]

The third force C is in the opposite direction of the sum of the first two forces, A+B, but the magnitude is the same as A+B  

Since A & B are at right angles we can just use Pythagoras and trig:  

A+B magnitude = sqrt(6^2 + 3^2) = 6.71  

A+B angle = arctan(6/3) deg north of east = 63.4 deg (first quadrant)

So C magnitude = 6.71 (same as A+B)  

[C angle = 63.4 deg south of west (third quadrant) = -180+63.4 deg polar = -116.6 deg

6 0
3 years ago
While in empty space, an astronaut throws a ball at a velocity of 9 m/s. What will the velocity of the ball be after it has trav
Snezhnost [94]

Answer:

1.5

Explanation:

5 0
3 years ago
There are 2 concentric cylinders. These cylinders are very long with length L. The inner cylinder has a radius R1 and is a solid
OLga [1]
To get the charge along the inner cylinder, we use Gauss Law
E = d R1/2εo
For the outer cylinder the charge can be calculated using
E = d R2^2/2εoR1
where d is the charge density
Use these two equations to get the charge in between the cylinders and the capacitance between them.
5 0
3 years ago
Would u rather/ have a penny that duplicates its self every day or win 1 million dollars once
arlik [135]

Answer:

1 million dollars once

Explanation:

Well, both would be nice. In total, you will get more from the million dollars because it takes over 2,739 years to get 1 million dollars worth of pennies.(if you get 1 a day that is)

8 0
3 years ago
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