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
viva [34]
2 years ago
7

A disk rolls along a flat surface at a constant speed of 10 m/s. Its diameter is 0.5 m. At a particular instant, point P on the

edge of the disk is 45°from the horizontal. What is the velocity of point P at that instant?
Physics
1 answer:
Irina18 [472]2 years ago
4 0

Answer:

Explanation:

Tangential velocity of point P ( v ) = 10 m/s making an angle of 45°from the horizontal due to rotation of disk.

Linear forward velocity due to linear forward motion of disc

= v = 10 m /s

Resultant velocity R

R²= 10² +10² + 2 . 10 . 10 cos 45

= 200 + 200 x .707

R = 18.47  m /s .

You might be interested in
When light reaches a barrier or the edge of an opening it diffracts, which means that the light _________. A) bends. B) bounces
rusak2 [61]
A. it bends when light reaches an end of a barrier it will bend.
3 0
3 years ago
Read 2 more answers
A weight lifter lifts a dumbbell a certain height in 2.0 s, while a competitor does the same workin 1.0 s. Compared to the power
Aloiza [94]

Answer:

a. one-half as great

Explanation:

The power developed by the first lifter is one-half as great as that of the second person.

  Power is defined as the rate at which work is done;

          Power  = \frac{workdone}{time}

Since the two lifters do the same work at different time, let us estimate their power;

       P₁ = \frac{workdone}{2}                     P₂ = \frac{workdone }{1}

   We see that for P₁, power is half of the work done whereas in P₂ power is the same as the work done.

Therefore,

           The power of the first weight lifter is one-half the second lifter.

4 0
2 years ago
Hiii please help i’ll give brainliest if you give a correct answer please thanks!
mrs_skeptik [129]

Answer:

25 to the right

Explanation:

there you go friend your awsome

4 0
2 years ago
The intensity of light depends on the amount of *blank blank*
babymother [125]

Answer:

energy? or power? I'm not really sure but using the quizzes app really help with science problems

7 0
2 years ago
What is the following atmospheric property associated with?
Nadya [2.5K]

Answer:

Your answer should be Cooled Air

Explanation:

6 0
2 years ago
Other questions:
  • Which word describes a statement that has been accepted, tested, and supported by multiple sets of evidence? A. Hypothesis B. Th
    15·1 answer
  • When light waves pass through the lenses of a pair of glasses, the light waves ______________ .
    10·1 answer
  • 6 use superposition to find voltage v(t) across the 100 ohm resistor
    9·1 answer
  • A speeding car collides with an unlucky bug flying across the road
    5·2 answers
  • How does regular exercise help older adult stay healthy?
    12·2 answers
  • I need help with science:
    15·1 answer
  • Select the correct answer. An object has one force acting on it. It is a 33-newton force pointing downward. To create a net forc
    8·2 answers
  • A block of mass m=3.0 kg is pushed down a 50° incline surface with a force of magnitude F=40 N.
    15·1 answer
  • he electric motor of a model train accelerates the train from rest to 0.720 m/s in 29.0 ms. The total mass of the train is 840 g
    15·1 answer
  • An object that is dropped from a height H falls with a constant acceleration of g. The final
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!