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
laiz [17]
3 years ago
11

The amount of force needed to keep a 0.5 kg football moving at a constant speed of 8 m/s

Physics
1 answer:
Mice21 [21]3 years ago
3 0

Answer:

0 N

Explanation:

The football is moving at constant speed, so it's not accelerating.

∑F = ma

F = (0.5 kg) (0 m/s²)

F = 0 N

You might be interested in
How does 625 over 1000 equal 5/8
ki77a [65]
625 /5=125/5=25/5=5
1000/5=200/5=40/5=8
is 5 Over 8
5 0
3 years ago
A local AM radio station broadcasts at a frequency of 696 KHz. Calculate the energy of the frequency at which it is broadcasting
bagirrra123 [75]

Answer:

E=4.61\times 10^{-28}\ J

Explanation:

Given that,

The frequency of local AM radio station, f = 696 KHz = 696000 Hz

We need to find the energy of the frequency at which it is broadcasting.

We know that,

Energy of a wave, E = hf

Where

h is Planck's constant

Put all the values,

E=6.63\times 10^{-34}\times 696000\\\\=4.61\times 10^{-28}\ J

So, the energy of the wave is equal to4.61\times 10^{-28}\ J.

5 0
3 years ago
How long does it take lewis hamilton travelling at 156 mph to cover 16 miles?
Paladinen [302]
It takes him
t = 16 miles / 156 mph = 0.1 hours

6 0
3 years ago
If the battery of your phone can provide 2 mA of current to your phone and holds a charge of 130 C, how long will it take a full
Naya [18.7K]

Answer: 65000 seconds

Explanation:

Given that,

Current (I) = 2 mA

(Since 1 mA = 1 x 10^-3A

2 mA = 2 x 10^-3A)

Charge (Q) = 130 C

Time taken for a fully charged phone to die (T) = ?

Recall that the charge is the product of current and time taken.

i.e Q = I x T

130C = 2 x 10^-3A x T

T = 130C / (2 x 10^-3A)

T = 65000 seconds (time will be in seconds because seconds is the unit of time)

Thus, it will take a fully charged phone 65000 seconds to die

5 0
3 years ago
If the force of gravity suddenly stopped acting on planets, they would
Orlov [11]
I believe it is C i am not sure
8 0
2 years ago
Other questions:
  • What could be a possible explanation why tectonic plates do not all move in the same direction
    9·1 answer
  • A bicyclist travels the first 1600 m of a trip at an average speed of 8 m/s, travels the next 1200 m in 90 s and spends the last
    5·1 answer
  • An error in witch macromolecule is the cause of hemophilia
    14·2 answers
  • How much heat is needed to change the temperature of 3 grams of gold (c = 0.129 ) from 21°C to 363°C? The answer is expressed to
    11·2 answers
  • The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel
    10·2 answers
  • How many meters in 2.50 miles? (Use these two conversions: 1000 m = 1 km and 1.00 km = .621 mi )
    8·1 answer
  • Herbie's mother sent him to the store and told him 12 items to get. He didn't write them down and when he got to the store he ha
    11·1 answer
  • What is the time period and frequency of a sound wave if it completes 500 vibrations in 50 seconds
    8·1 answer
  • Study the three loops shown below. For each loop, state which of the bulbs will light when the
    13·1 answer
  • Define volume with example​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!