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
LuckyWell [14K]
3 years ago
5

An object of mass 0.5 kg is swung in uniform circular motion. The radius is 2 meters, and the force exerted is 4 N. Calculate th

e magnitude of the velocity.
Physics
1 answer:
Katarina [22]3 years ago
8 0
Using
F= mv²/r
4 = 0.5×v² / 2
8 /0.5 = v²
v²=16
v= √16
v= 4 ms-¹
You might be interested in
Match the speed to the section that describes.
inn [45]

Answer:

a=2 ok do it and ........

4 0
3 years ago
A cylindrical Nickel rod (9 mm diameter, 50 m long) is pulled in tension with a load of 6,283 N. What would the elongation of th
Norma-Jean [14]

Answer:

0.29 m

Explanation:

9 mm = 0.009 m in diameter

Cross-sectional area A = \pi d^2/4 = \pi * 0.009^2/4 = 6.36\times 10^{-5} m^2

Let the tensile modulus of Nickel E = 170 \times 10^9Pa.

The elongation of the rod can be calculated using the following formula:

\Delta L = \frac{F L}{A E} = \frac{6283*50}{6.36\times 10^{-5} * 170 \times 10^9} = \frac{314150}{1081200} = 0.29 m

6 0
4 years ago
How much energy is stored in the capacitor when it is aa fully charged
lakkis [162]

Answer:

0.5*10uF * 16*16 =0.0128

Explanation:

I have no explanation just like my soul.

6 0
3 years ago
What can lead to groundwater shortages
Alex

Answer:

most commonly occurs because of the frequent pumping of water from the ground.

Explanation:

8 0
3 years ago
what is the relationship between the number of turns of the wire and electrical output of the generator?
xxTIMURxx [149]

The number of turns of wire is directly proportional to voltage.

The higher the number of turns of wire the higher the voltage

Since .

Power (output) of a generator = voltage x current. Therefore the higher the voltage the higher the output of the generator.

So, the higher the number of turns of wire the higher the output of the generator.

4 0
3 years ago
Other questions:
  • What will change the velocity of a periodic wave?
    15·2 answers
  • A 5.0 V battery storing 43.0 kJ of energy supplies 1.5 A of current to a circuit. How much energy does the battery have left aft
    10·1 answer
  • The weight of a body above sea level varies inversely with the square of the distance from the center of Earth. If a woman weigh
    7·1 answer
  • If the architectural plans show the rough opening of a window to be 3'-3" x 4'-9" , the height of the opening should actually me
    7·1 answer
  • A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.
    13·1 answer
  • which would be better suited for agriculture, the soil of a tropical rain forest or that of a temperate deciduous forest
    13·1 answer
  • Choose ALL that apply
    13·1 answer
  • How would I solve this? It's Newton's 2nd law
    7·1 answer
  • The volume of the water in the graduated cylinder rose as some of the water was displaced by the table tennis ball. Find the vol
    7·1 answer
  • How many kcalories are provided by a food that contains 25 g carbohydrate, 6 g protein, and 5 g fat?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!