• ### What is the frequency of the wheel after the clay sticks to it? Ignore friction. Express your answer using two significant figures.?

A potter's wheel is rotating around a vertical axis through its center at a frequency of 2.0 rev/s. The wheel can be considered a uniform disk of mass 4.8 kg and diameter 0.38 m. The potter then throws a 2.5-kg chunk of clay, approximately shaped as a flat disk of radius 8.0 cm, onto the center of the rotating wheel.
50 secs ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Physics help?

A mass m = 85 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 18.9 m and finally a flat straight section at the same height as the center of the loop (18.9 m off the ground). Since the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it must be... show more
5 mins ago
• Edit
• We are experiencing some problems, please try again.
• ### A cheetah is running at a speed of 18.9 m/s in a direction of 36° north of west. Find the components of velocity at the north and west vecto?

33 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### PHYSICS 12 PROBLEM?

A throwing game is made up such that a ball will be thrown, with the goal of hitting a bar suspended well above the ground, out from the thrower. This could be something like trying to hit a football goal post cross-bar from a ways back. The bar is 15m in front of the throwers, and 5m above their heads (roughly where they release the ball). The... show more
35 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Calculate the applied torque needed to accelerate it from rest to 1750 rpm in 6.60 s. Take into account an additional torque of friction....?

A grinding wheel is a uniform cylinder with a radius of 6.40 cm and a mass of 0.510 kg. ….The frictional torque has been measured to slow down the wheel from 1500 rpm to rest in 64.0 s. Express your answer to three significant figures and include the appropriate units.
37 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### What is the magnitude of the radial acceleraiton?

A rotating merry-go-round makes one complete revolution in 5.3 s and has a constant angular velocity.
44 mins ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Force problem?

A horizontal force 'F' pulls a 20kg box across the floor at a constant speed. If the coefficient of friction between the box and floor is 0.60 how much work does 'F' do in moving the cart 3.0m?
1 hour ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### What possible conditions could cause the specific heat of fusion of ice to be negative?

1 hour ago
• Edit
• We are experiencing some problems, please try again.
• ### Now that I have broken the law of conservation of momentum and the law of conservation of energy how should I be rewarded?

I have invented a seemingly perpetual motion machine that requires a bit of low powered automation or some well timed mechanism that requires no electricity. And also invented a machine that will accelerate indefinitely without losing any mass. What should my reward be?
2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### A 28.7 kg sled is pulled forward with a 63.0 N force across ground with µk=0.169. What is the acceleration of the sled?

2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Suppose a 30.0-kg package is moving at 0.5 m/s changes its speed to 1.0 m/s?

-what is its initial KE -what is its final KE -what is its change in KE -what is the work done during the process - if 1=N, what is the distance it traveled in the process
2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Physics help?

Show by repeated addition that multiplying the vector A = (1, 2, 3) by 3 is the same as adding up 3 copies of the vector. What is the final vector?
2 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### What happen if bone marrow becomes exposed to radiation or toxic substance such as snake poisons?

3 hours ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### What is the final speed of the falcon and pigeon? What is the average force on the pigeon during the impact?

A 480 g peregrine falcon high in the sky spies a 240 g pigeon some distance below. The falcon slows to a near stop, then goes into a dive—called a stoop—and picks up speed as she falls. The falcon reaches a vertical speed of 45 m/s before striking the pigeon, which we can assume is stationary. The falcon strikes the pigeon and grabs it in her... show more
3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Physics help?

A treasure map you uncovered while vacationing on the Spanish Coast reads as follows: "If me treasure ye wants, me hoard ye'll have, just follow thee directions these. Step to the south from Brisbain's Mouth, 5 paces through the trees. Then to the west, 10 paces ye'll quest, with mud as deep as yer knees. Then 3 paces more north,... show more
3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Do all points along the minute hand of a clock experience the same centripetal acceleration?

3 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### Scalars. vectors?

The Earth has a mass of 5.97×1024 kg. The Earth's Moon has a mass of 7.35×1022 kg. How many Moons would it take to have the same mass as the Earth?
4 hours ago
• Edit
• We are experiencing some problems, please try again.
• ### What will happen when the gamma ray photons meet the radio photons in the space?

4 hours ago
Be the first one to answer
• Edit
• We are experiencing some problems, please try again.
• ### Equation for complex sales order?

So a truck enters a warehouse to pick up an order. An order consists of Pallets, "Picks", and "SKU's". a pallet is full of cartons of an item (i.e a pallet of lettuce cartons). A pick is when you take one carton from the intial full pallet to be removed, or replaced with another item (i.e i need a pallet of lettuce but... show more
4 hours ago