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2 dimensional motion problem
(a) What are the period and speed of a person on a carousel if the person has an acceleration with a magnitude of 0.86 m/s2 when she is standing 3.6 m from the axis? (b) What are her...
physics question
During a rescue operation, a 6000-kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 65 m/s. What mass of air must pass through the blades every second...
Physics problem
A child pedals a tricycle, giving the driging wheel an angular speed of 0.375 rev/s. if the radius of the wheel is 0.275 m, what is the child's linear speed?
Physics questions
If the angular speed of the Earth as it spins about, its axis is 7.27 x 10-5rad/s. How many rotations the Earth can make in 24 hours?
Physics Problem
A 15-g CD with a radius of 7.5 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy?
Help me.......
Let a balloon in the Space means space having no air or any external force, a balloon is filled with a higher energetic particles of gas, the structure of the balloon is just like a Earth,particles...
Why is Pluto no longer a planet?
What happened??
forces physics problem - Please Help ASAP
A 74.4-kg airplane pilot pulls out of a dive by following, at a constant speed of 184 km/h, the arc of a circle whose radius is 282.0 m. (a) At the bottom of the circle, what are the direction...
Force of Tension Problem - Please Help ASAP
A 15000-kg helicopter is lowering a 4300-kg truck by a cable of fixed length. The truck, helicopter, and cable are descending at 17.0 m/s and must be slowed to 5.00 m/s in the next 56.0 m of descent...
2 dimensional motion problem
A woman throws a ball at a vertical wall d = 3.8 m away. The ball is h = 1.9 m above ground when it leaves the woman's hand with an initial velocity of 20 m/s at 45°. When the ball hits the wall,...
Forces problem - Please Help ASAP
A block of mass M = 16 kg with a pulley attached slides along a frictionless ledge. It is connected by a massless string to a block of mass m = 5.2 kg. (a) Find the acceleration of each block...
Forces Problem - Please help ASAP
A 32.8-kg traffic light is supported by two wires. T1 is of the right wire which connects to the vertical pole at 30 degrees below horizontal. T2 is of the left wire which connects to the...
A satellite with an orbital period of exactly 24.0 h is always positioned over the same spot on Earth.
This is known as a geosynchronous orbit. Television, communication, and weather satellites use geosynchronous orbits. At what distance would a satellite have to orbit Earth in order to have a geosynchronous...
What are Newton's laws of motion?
can someone tell me what Newton's laws of motions are?
Gravity, height, and rock falling problem - Please help ASAP
A rock dropped from a cliff covers one-third of its total distance to the ground in the last second of its fall. Air resistance is negligible. How high is the cliff?
Forces problem - Please Help ASAP
You are racing in a rally on a snowy day when the temperature is near the freezing point. The coefficient of static friction between a car's tires and an icy road is 0.170. Your crew boss is concerned...
forces physics problem - Please Help ASAP
You are on an amusement park ride with your back against the wall of a spinning vertical cylinder. The floor falls away and you are held up by static friction. Assume your mass is 72 kg. (a) Draw...
Phyisics question below
A spring with a force constant of 120N/m is used to puch a 0.27kg block of wood against a wall. Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient...
Atwood's Machine Problem - Please help ASAP
Both sides of wire start out with 5 washers with the total mass of 5m. When N washers are transferred from the left side to the right side, the right side descends 70.56 cm in 0.60 s. Find N.
physics buoyant
a styrofoam ball is attached to the bottom of a swimming pool with a nylon cord. the cord is 1.20 m long and the pool is 3.3 m. diameter of ball is 46cm. density of styroforam is 0.3 g/cc. find...
