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ikadub [295]
3 years ago
8

Solve the speed for the blank this is a PHET LAB​

Physics
1 answer:
Veronika [31]3 years ago
6 0

Explanation:

The volume of matter contained in an item is measured in kilograms. It claims that a material's rate in velocity is equal to the force exerted and occurs in the force's path.

Speed (Velocity) = Force / Mass

Speed (Velocity) = 25 / 50 = 0.5 m/s

Speed (Velocity) = 50 / 50 = 1 m/s

Speed (Velocity) = 7 / 50 = 1.5 m/s

Speed (Velocity) = 100 / 50 = 2 m/s

Speed (Velocity) = 200 / 50 = 4 m/s

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If my mass is 196 lbm and I tackle one of my teammates - while decelerating from a velocity of 6.7 m/s to 0 m/s in 0.5 s, how mu
Olin [163]

Answer:

the force acting on the team mate is 1.19 kN.

Explanation:

given,

mass = 196 lbm

while tackling, the deceleration is from velocity 6.7 m/s to 0 m/s

time taken for deceleration = 0.5 sec        

F = mass × acceleration

acceleration = \dfrac{0-6.7}{0.5}              

                     = -13.4 m/s²                            

1 lbs  = 0.453 kg                      

196 lbs = 196 × 0.453  = 88.79 kg

F = 88.79 × 13.4                              

F = 1189.786 N = 1.19 kN                      

hence, the force acting on the team mate is 1.19 kN.

8 0
3 years ago
A person yells across a canyon and hears an echo 2.5 seconds later. The air temperature is 21°C. How far away is the canyon wall
Alchen [17]

Answer: The canyon wall is 850 m away from the person

Explanation:

Well, the speed of sound V in air at 21 \° C is defined as 343.60 m/s, this can be calculated by the following equation:

V=\sqrt{\frac{\gamma R T}{M}} (1)

Where:

\gamma=1.4 is the Heat capacity ratio for air

R=8.314 J/mol.K is the Universal Gas constant

T=21 \° C+273.15=294.15 K is the temperature in Kelvin

M=0.029 kg/mol is the air molar mass

V=\sqrt{\frac{(1.4)(8.314 J/mol.K)(294.15 K)}{0.029 kg/mol}}

V=343.60 m/s (2)

Now that we know the speed of sound, we can use the following equation to find the distance between the person and the canyon wall:

V=\frac{d}{t} (3)

Where:

d is the distance between the person and the canyon wall

t=2.5 s is the time it takes to the sound wave to travel from the person and then go back

Isolating d:

d=V.t (4)

d=(343.60 m/s)(2.5 s) (5)

Finally:

d=850 m

7 0
3 years ago
The properties of ductility, malleability, ability to conduct heat and electricity are characteristics of what type of material?
laiz [17]
These are  the characterstics of metal.


                 hope it helps u........
8 0
4 years ago
Read 2 more answers
imagine that a new planet is discovered with two moons of equal mass, moon A and moon B. The mass of the new planet is greater t
sdas [7]
The gravitational pull on moon A will be lower since it is further away from the new planet.
3 0
4 years ago
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What is semiconductor device that produces electric current through the effect for which its named?
nlexa [21]

The semiconductor device that produces electric current through the effect is termed as transistor.

To find the answer, we have to know more transistor.

<h3>What is transistor?</h3>
  • Transistors come in two different types: field-effect transistors and bipolar junction transistors.
  • The formation of two p-n junctions in various configurations, such as n-p-n or p-n-p, results in bipolar junction transistors.
  • The emitter, collector, and base, or middle region, are the three areas that form in a transistor.
  • The conductivity of the field-effect transistor, which is based on the conductivity principle, can be changed by an electric field.

Thus, we can conclude that, the semiconductor device that produces electric current through the effect is termed as transistor.

Learn more about transistor here:

brainly.com/question/1345827

#SPJ4

6 0
2 years ago
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