1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
8090 [49]
3 years ago
9

While looking at bacteria under a microscope you decide to take a break when u return the amount of bacteria has doubled in size

your break probably only took
Physics
1 answer:
VikaD [51]3 years ago
4 0
Your break probably only took 20-30 minutes. Bacteria can double every 20-30 minutes. Hope this helped!
~ Sincerely,
     Cutenerd1234
XOXO
You might be interested in
(1) Predator-prey is the most important type of ecological relationship.
DIA [1.3K]
1) True 2) True 3)True I hope I helped
4 0
3 years ago
31. If you threw a baseball straight out at 45 m/s from a height of 1.5 meters (A) how long would it be in the air? B) How far o
coldgirl [10]

Answer:

A) t = 0.55 s

B) x = 24.8 m

Explanation:

A) We can find the time at which the ball will be in the air using the following equation:

y_{f} = y_{0} + v_{0y}t - \frac{1}{2}gt^{2}    

Where:

y_{f} is the final height= 0  

y_{0} is the initial height= 1.5 m

v_{0y} is the component of the initial speed in the vertical direction = 0 m/s        

t: is the time =?      

g: is the gravity = 9.81 m/s²

0 = 1.5 m - \frac{1}{2}9.81 m/s^{2}t^{2}

By solving the above equation for t we have:

t = \sqrt{\frac{2*1.5 m}{9.81 m/s^{2}}} = 0.55 s  

Hence, the ball will stay 0.55 seconds in the air.

                             

B) We can find the distance traveled by the ball as follows:

x_{f} = x_{0} + v_{0x}t + \frac{1}{2}at^{2}

Where:  

a: is the acceleration in the horizontal direction = 0  

x_{f} is the final position =?  

x_{0} is the initial position = 0      

v_{0x} is the component of the initial speed in the horizontal direction = 45 m/s                                                                                            

x_{f} = x_{0} + v_{0x}t + \frac{1}{2}at^{2}

x_{f} = 0 + 45 m/s*0.55 s + 0 = 24.8 m

Therefore, the ball will travel 24.8 meters.

I hope it helps you!

3 0
2 years ago
The starship Enterprise leaves a distant earth colony, which is nearly at rest with respect to the earth. The ship travels at ne
slamgirl [31]

Explanation:

t = t/v(1-v^2/c^2)

3.10- 1.03 = 1.03/v(1-v^2/c^2)

2.07 = 1.03/v(1-v^2/c^2)

v(1-v^2/c^2) = 0.49

squaring both sides

(1-v^2/c^2) = 0.24

0.76 = v^2/c^2

v^2 = 0.76 × (3×10^8)^2

v = 0.873×10^8

v = 2.61×10^8 m/s

s = vt

t = 3.10 years = 3.10×365×24×3600 seconds = 9.7×10^8

s = 2.61×10^8× 9.7×10^8

s = 25.31×10^16 m

5 0
2 years ago
How do particle collisions transfer energy?
Charra [1.4K]
Conduction is a method of Heat transfer in solids by mutual vibration of the solid particles. The heat particle of one solid receives the heat, and transfer it to the next solid particle to it. This is as a result of the particles touching each other and by a little vibration of the particles.

A conductor is a material that allows the transfer of heat in this case. It could also allow the transfer of electrical current. Example Iron, Copper.

An insulator is a material that is poor in transfer heat or electric current from one point to another. Example is Wood.

Convection is a method of heat transfer in liquid or air medium, by the actual or bulk movement of the heated medium. E.g transfer of heat from hotter air to cooler air, transfer of heat from hotter region of boiling water to the cooler region which is at the surface.

Density is simply mass per unit volume.
Density = Mass / Volume,  It's SI Unit  =  Kg/m3.

Does density depend on temperature?

This is a bit tricky. For liquids we should say yes, there is appreciable difference in density. For example we know that water has maximum density of 1 g/cm3 at  4 degrees Celsius.

But for solids, the density is not affected much, except at very high temperatures.

So in summary we should say Density is affected by temperature, because we know that the volume of the material would be affected and hence the density is affected likewise.

Sorry, the solution came a little bit late.
5 0
3 years ago
The power rating of a 400-ΩΩ resistor is 0.800 W.
sashaice [31]

Answer:

voltage= 17.88volts

current= 0.04 amps

Explanation:

Step one:

given data

resistance R=400 ohms

Power P= 0.8W

a.  What is the maximum voltage that can be applied across this resistor without damaging it?

the expression relating power and voltage is

P=V^2/R

substituting we have

0.8=V^2/400

V^2=0.8*400

V^2=320

V=√320

V=17.88 volts

the maximum voltage is 17.88volts

b.What is the maximum current it can draw?

we know that from Ohm' law

V=IR

17.88=I*400

I=17.88/400

I=0.04amps

3 0
2 years ago
Other questions:
  • What is the theory of punctuated equilibrium answers?
    15·2 answers
  • a fluid in equilibrium within a vessel exerts pressure intensity to all parts of the fluid, according to _____ principle
    6·1 answer
  • An automobile with a mass of 1165 kg accelerates at a rate of 5 m/s² in the forward direction. What is the net force acting on t
    8·1 answer
  • Radar use reflected microwaves to detect objects and measure their... what?
    12·1 answer
  • A typical meteor that hits the earth's upper atmosphere has a mass of only 2.5 g, about the same as a penny, but it is moving at
    15·1 answer
  • Plz help me I’m a desperate little boy
    8·1 answer
  • 1. What is evaporation and how does it affect weather?
    7·1 answer
  • 1. The electromagnetic waves described in the reading are different in which two ways:
    10·1 answer
  • Red+Blue=???????<br>Answer it.​
    13·2 answers
  • Metallic gold crystallizes in a face-centered cubic lattice, with one au atom per lattice point. if the edge length of the unit
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!