Question

A sling with a length of 60 cm does 6 rotations per second. What is the speed that the stone at the end of the sling is travelling?

Answer #1

Given,

Length of the sling,

The number of rotations made by the sling in one second = 6

The total angle made by the sling in one-second,

Since the angle made by the sling in one second is 37.68 radians hence the angular speed of the stone is 37.68 rad/s.

Now, from the relation of angular speed and linear speed,

where is angular speed, v is linear speed and r is the length of the sling.

Hence the linear speed of the stone is 22.608 m/s.

A rock climber stands on top of a 60 m -high cliff overhanging a
pool of water. He throws two stones vertically downward 1.0 s apart
and observes that they cause a single splash. The initial speed of
the first stone was 1.7 m/s .
A. How long after the release of the first stone does the second
stone hit the water?
B. What was the initial speed of the second stone?
C. What is the speed of the first...

A lens of focal length +15.0 cm is 10.0 cm to the left of a
second lens of focal length -15.0 cm.
Where is the final image of an object that is 27.0 cm to the
left of the positive lens? Enter the image distance with respect to
the right lens. Follow the sign convention.(Express your answer
to three significant figures.)
How does the image's size compare to this of the original
object? Find the magnification m=hI/hOm=hI/hO. (Express your
answer...

Two converging lenses, the first with focal length 10.0 cm and
the second with focal length 20.0 cm, are separated by 40.0 cm. An
object, 3.00 cm in height, is placed 30.0 cm in front of the first
lens. What is the height of the final image?

⦁ A blade of length 6m has an angular speed of 6.5
revolution per second and has an angular acceleration of 1.3
revolution per second squared. What is the tangential speed and
tangential acceleration midway of the blade?

A stone of mass 500g is attached to a string of length 50 cm
which will break if the tension exceed 20N. The stone is whirled in
a vertical circle. The angular speed is slowly increased until the
string breaks.
Draw a diagram to show the forces acting on the stone in a
vertical circle when it is at its higest and lowest points.
By suggesting a reason for your answer, state in what position
along the vertical circular path...

Two converging lenses, the first with focal length 40 cm and the
second with focal length 33 1/3 cm, are separated by 10.0 cm. An
object of height 6.0 cm is placed 20.0 cm in front of the first
lens. What are the size and orientation of the final image?
1.5 cm, inverted
24 cm, inverted
6.0 cm, inverted
24 cm, upright
6.0 cm, upright

A TDR probe of a length of 60 cm was installed vertically into a
soil profile before seeding wheat in the spring. TDR reading on May
15 (beginning of the season) was L0 = 2.900 m; L1=5.114 m. On the
day of harvesting September 8 (end of the season), the reading was
L0 =2.900 m and L1=4.331 m. Assume there is no rainfall.
What was the total change in soil water storage in the root zone
(60 cm depth)? Thanks...

Two converging lenses, the first with focal length f1 = 25 cm
and the second with focal length f2 = 15 cm are separated by a
distance of ` = 65 cm. An object is place at a distance of do1 = 45
cm to the left of the first lens.
(a) What will be the distance from the second lens that the final
image is produced? Is this image to the left or right of the second
lens? Justify...

A horizontal pipe radius 1.5 cm and length 25 cm is connected to
the output that can sustain an output gauge of 10 kPa. What is the
speed of 20 degrees Celsius water flowing through the pipe? If the
temperature of the water is 60 degrees Celsius, what is the speed
of water in the pipe?

Please Show All Work
An object is placed 60 cm to the left of a converging lens of
focal length 20 cm. A converging lens of focal length 15 cm is 40
cm to the right of the converging lens.
a. Where is the image created by the first lens relative to the
first lens? cm
b. Is it real or virtual?
c. How far is this image from the second lens? cm
d. Where is the final image relative to the...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 10 minutes ago

asked 22 minutes ago

asked 35 minutes ago

asked 38 minutes ago

asked 49 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago