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Firlakuza [10]
3 years ago
8

What could we call the grocery store? A. Linear motion B. Reference point C. Rotary

Physics
1 answer:
Roman55 [17]3 years ago
8 0

Reference point

Explanation:

I am not sure

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Holden is trying to turn man the velocity of his car, he went 20 meters east, turned around and left 40 meters less, he turned t
Grace [21]

Answer:

3 m/s east

Explanation:

The velocity of the car is given by:

v=\frac{d}{t}

where

d is the displacement

t is the time taken

The displacement of the car does not depend on the path of the car, but just on it the difference between its final position and its starting position, so it is equal to 15 metres east. The time taken is 5 seconds, therefore the velocity is equal to

v=\frac{15 m}{5 s}=3 m/s

and the direction is east.

4 0
3 years ago
Describe the factors that determine power in your own words (not from a website)
Bond [772]

As it was categorized in the physics category it must be the mechanical power.


Power is basically the amount of work done per unit time or in simpler words the amount of energy transferred per unit time.


The SI unit for power is Watt. Which is basically J/s or Nm/s as wor has the unit of Nm.


In electrical components power can also be categorized as the amount voltage supplied multiplied by the current passed through the component.

5 0
2 years ago
Read 2 more answers
A spherical balloon has a radius of 8.35 m and is filled with helium. how large a cargo can it lift, assuming that the skin and
rusak2 [61]

Assuming that the densities of the gases are:

density of air, ρ1 = 1.29 kg / m^3

density of helium, ρ2 = 0.179 kg / m^3

 

Since buoyant force and weight are two forces that are in opposite direction (buoyant force is up while weight is down), therefore equate the two:

buoyant force = weight

m g = (800 + m1) g

where m is the mass of buoyancy, g is gravity and m1 is the maximum mass of the cargo

m = 800 + m1

 

We know that mass is also expressed as:

m = ρ V

where ρ is density of gas and V is volume of the sphere

Since there are two interacting gases here, therefore m is:

m = (ρ1 – ρ2) V

 

Therefore:

(ρ1 – ρ2) V = 800 + m1

(1.29 – 0.179) (4π/3) (8.35m)^3 = 800 + m1

2709.33 = 800 + m1

m1 = 1,909.33 kg

7 0
3 years ago
Which of the following statements best supports the idea that science strives for objectivity?
nasty-shy [4]
I am going to have to say B
6 0
3 years ago
Read 2 more answers
I need help in this pls i really need a answer
IrinaK [193]

Answer:

In terms of distance, average speed is 20 km/h

In terms of displacement, average speed is 0 km/h.

Explanation:

Total distance:

= (40.0 - 10.0) + (20.0 - 10.0) + (40.0 - 20.0) \\  = 30.0 + 10.0 + 20.0 \\  = 60.0 \: km

Total time is 3.0 hours

but:

average \: speed =  \frac{total \: distance}{total \: time}  \\

In terms of distance.

substitute:

average \: speed =  \frac{60.0}{3.0}  \\  \\  = 20 \:  {kmh}^{ - 1}

displacement = ( - 30.0) + 10 .0+ 20.0 \\  = 0

In terms of displacement:

speed =  \frac{0}{3}  \\  \\  = 0 \:  {kmh}^{ - 1}

3 0
3 years ago
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