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
Ne4ueva [31]
3 years ago
12

A 52.0 kg skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pip

e ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?
Physics
1 answer:
Lyrx [107]3 years ago
3 0
A= (8.9)^2/3=26.4
f=26.4*52=1372.97N
You might be interested in
Help me please. I don't understand this at all
algol13
The answer is C for this question
7 0
3 years ago
Read 2 more answers
A neutron Star that spins is known as what
KATRIN_1 [288]
I think it is known as a pulsar!
3 0
3 years ago
Read 2 more answers
A flat coil of wire consisting of 20 turns, each with an area of 50 cm2, is positioned perpendicularly to a uniform magnetic fie
jenyasd209 [6]

Answer:

0.5 A

Explanation:

N = 20, A = 50 cm^2 = 50 x 10^-4 m^2, dB = 6 - 2 = 4 T, dt = 2 s, R = 0.4 ohm

The induced emf is given by

e = - N dФ/dt

Where, dФ/dt is the rate of change of magnetic flux.

Ф = B A

dФ/dt = A dB/dt

so,

e = 20 x 50 x 10^-4 x 4 / 2 = 0.2 V

negative sign shows the direction of magnetic field.

induced current, i = induced emf / resistance = 0.2 / 0.4 = 0.5 A

5 0
3 years ago
What is linear expansivity?​will receive brainliest if answered correctly​
harina [27]

Answer:

Linear expansivity is the fractional increase in length of a specimen of a solid, per unit rise in temperature. If a specimen increases in length from l1 to l2 when its temperature is raised θ°, then the expansivity (α) is given by: l2 = l1(1 + αθ). This relationship assumes that α is independent of temperature. This is not, in general, the case and a more accurate relationship is: l2 = l1(1 + aθ + bθ2 + cθ3…), where a, b, and c are constants.

l2 = l1(1 + αθ).

l2 = l1(1 + aθ + bθ2 + cθ3…),

6 0
4 years ago
Read 2 more answers
How we will solve this question?<br> 36.45cL=______=μL
QveST [7]

Answer:

0.364

I believe... Good luck!

8 0
3 years ago
Other questions:
  • #2 A car accelerates from rest at 4 m/s^2. What is the velocity of the car after 4 second?
    14·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Joules could be used to measure
    11·1 answer
  • Replication of a research study is most likely to be made easier by
    15·1 answer
  • How many students would it take to move 10 teachers, together exerting a force of 50 000N, once around a 400m track. Each studen
    14·1 answer
  • What is the outermost layer of a kidney?
    15·2 answers
  • Susie (45kg) and Troy (65 kg) are sitting 2 meters apart. They smile at each other. What is the gravitational force between them
    6·1 answer
  • Whenever an object is moving at a constant rate, the value(s) that equal zero is (are):
    6·2 answers
  • You use the laces to throw the football accurately, but you turn the laces to kick a
    13·2 answers
  • If an object is placed at distance of 16cm from a plane mirror, How far would it be from it's image?​
    14·1 answer
  • Most stars in the Milky Way's halo are _________. blue or white in color very young very old found inside molecular clouds
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!