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
valina [46]
3 years ago
5

Suppose you ride your bike to the library traveling at 0.5 km/min. It takes you 25 minutes to get to the library. How far did yo

u travel?
Physics
2 answers:
madam [21]3 years ago
4 0
Answer= 12.5 km

 0.5 km      x km
_______=______
  1 min      25 min

Cross multiply
1x=12.5
divide both sides by 1
x=12.5

You traveled 12.5 km
timurjin [86]3 years ago
3 0
(0.5 km/ 1 min)* 25 min= 12.5 km.

The distance was 12.5 km~
You might be interested in
Which type of heat transfer takes place in a vacuum? (3 points)
tiny-mole [99]
Radiation is the only transfer in a vacuum
3 0
3 years ago
Suppose a family replaces ten 60-watt incandescent bulbs with ten 30-watt
mixer [17]

Initially there were 10 bulbs of 60 Watt power

So total power of all bulbs = 60 * 10 = 600 W

now each bulb used for 4 hours daily

so total energy consumed daily

E = p*t

E = 600*4 = 2400Wh

E = 2.4kWH

now we have total power consumed in 1 year

E = 365 * 2.4 = 876kWh

cost of electricity = 10 cents/ kWh

so total cost of energy for one year

P1  = 876*10 = 8760cents = 87.60

Now if all 60 Watt bulbs are replaced by 30 Watt bulbs

So total power of all bulbs = 30 * 10 = 300 W

now each bulb used for 4 hours daily

so total energy consumed daily

(The next steps are in the pic.)

5 0
3 years ago
An electron and a proton are each placed at rest in a uniform electric field of magnitude 560 N/C. Calculate the speed of each p
Butoxors [25]

Answer:

The speed of electron is v=4.52\times 10^6\ m/s and the speed of proton is 2468.02 m/s.

Explanation:

Given that,

Electric field, E = 560 N/C

To find,

The speed of each particle  (electrons and proton) 46.0 ns after being released.

Solution,

For electron,

The electric force is given by :

F=qE

F=1.6\times 10^{-19}\times 560=8.96\times 10^{-17}\ N

Let v is the speed of electron. It can be calculated using first equation of motion as :

v=u+at

u = 0 (at rest)

v=\dfrac{F}{m}t

v=\dfrac{8.96\times 10^{-17}}{9.1\times 10^{-31}}\times 46\times 10^{-9}

v=4.52\times 10^6\ m/s

For proton,

The electric force is given by :

F=qE

F=1.6\times 10^{-19}\times 560=8.96\times 10^{-17}\ N

Let v is the speed of electron. It can be calculated using first equation of motion as :

v=u+at

u = 0 (at rest)

v=\dfrac{F}{m}t

v=\dfrac{8.96\times 10^{-17}}{1.67\times 10^{-27}}\times 46\times 10^{-9}

v=2468.02\ m/s

So, the speed of electron is v=4.52\times 10^6\ m/s and the speed of proton is 2468.02 m/s. Therefore, this is the required solution.

6 0
4 years ago
What is the momentum of a 75-kilogram ice skater gliding across the ice at a speed of 13 m/s? ____ kg-m/s
Damm [24]
Momentum = Mass*Velocity

Momentum = 75*13
Momentum = 975

The answer is 975 kg-m/s
Hope you get help
7 0
4 years ago
Read 2 more answers
The measurement of an exoplanet radius is measured in units compared to
maksim [4K]
<span>After an exoplanet has been identified using a given detection method, scientists attempt to identify the basic properties of the planet which can tell us what it might be made of, how hot it might be, whether or not it contains an atmosphere, how that atmosphere might behave, and finally, whether the planet may be suitable for life. It is often useful to first determine basic properties of the parent star (such as mass and distance from the Earth). This is then followed by the use of planetary detection methods to calculate planetary mass, radius, orbital radius, orbital period, and density. The density calculation will provide clues as to what the planet is made of and whether or not it contains a significant atmosphere. Mass and Distance of Parent Star The mass and distance of an exoplanet's parent star must often be calculated first, before certain measurements of the exoplanet can be made. For example, determining the star's distance is an important step in determining a star's mass (see below). Knowing the mass of a star then allows the mass of the planet to be measured, for example when using the Radial Velocity Method.</span>
7 0
3 years ago
Other questions:
  • What is necessary for a substance to be a conductor of electricity?
    6·1 answer
  • You are hungry and decide to go to your favorite neighborhood fast-food restaurant. You leave your apartment and take the elevat
    15·1 answer
  • Multiple choice
    11·1 answer
  • At what point will the currents that transfer heat throughout a gas cease to flow?
    9·2 answers
  • Does an increase in velocity necessarily mean an increase in acceleration?
    9·2 answers
  • Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She
    13·2 answers
  • Who invented gravity
    5·2 answers
  • Compared with dim light, what do light waves that look bright tend to have the subject just says science but the picker doesn't
    5·1 answer
  • 4. A car accelerating at 60 meters/second is hit in an accident by a bus. The net force exerted on
    5·1 answer
  • Determina el volumen de 450 g de alcohol
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!