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If a planet has a mass of 9.42 x 1024 kg and a radius of 5.47 x 106 meters, to the nearest m/s what is its escape velocity?
Find the final angular velocity of the system if the runner comes to rest relative to the turntable.
A hockey puck is hit on a frozen lake and starts moving with a velocity of 11.5 m/s. After 7.45 seconds, its velocity is 5.67 m/s.
The ball's velocity was 1.5m/s before the collision, but after the collision it is 1.2m/s. What is the velocity of the pin just after the collision?
Lee Mealone, a hermit pushes a 16 kg boulder into the wall of his cave at a speed of 4.5 m/s, the boulder is brought to a stop in 2.3 seconds.
A circular conducting loop carries a current of 5.0 A and has radius 30 mm
Suppose a nickel (mass = 5.0 grams) is sitting on a turntable, 15.0 c, from the center. The turn-table is turning at 33-1/3 revolutions per minute.
Since the force that acts on a bullet when a gun is fired is equaland opposite to the force that cats on the gun, does this imply a zero net force.
A horizontal has a fluid flowing through it. The fluid(density = 1000kg/m^3) is flowing through it at the rate of 2 x 10^-4 m^3/s.
A 10-kg box is pushed by from rest by a 100-Newton force at a 30 degree angle downward with respect to the horizontal.
The only radiogenic lead isotope that is not either stable (Pb-206, 207, 208) or with a halflife of less than one day is Pb-210, which is found in nature
A liquid with a density of 1.37*10^3 kg/m^3 flows through two horizontal sections of tubing joined end to end.
At standard Temperature and pressure sound travels at speed u=330m/s relative to the air through which it propagates
You drive a car 7 hours at 46kmh then 7 hours at 69kmh. What is your average velocity? Answer in km/h.
In a race over a distance s, runner A starts from rest and accelerates at a1 for the first distance x and then runs at constant speed.
The frictional force is negligible. The block starts from rest and moves 11.0 m in 5.00 s.
A projectile is fired with an initial velocity of 15.0 m/s at 53.0o above the horizontal from the foot of a ramp inclined 20.0o above the horizontal.
Calculate the radius of curvature of the path of a beta particle of mass 9.1 x 10^-31 kg and speed 2.0 x 10^7 m/sec perpendicular to a magnetic field of 0.50 T.
Calculate the two velocities corresponding to the scaled displacements by dividing each displacement, actual, in meters by the image time interval, 1/30 s.
A wheel starts from rest and rotates about its axis with constant angular acceleration.
An 85-kg jogger is heading due east at a speed of 2.0 m/s. A 55-kg jogger is heading 32° north of east at a speed of 3.0 m/s.
A force of magnitude 8.0 N pushes on a horizontally stacked set of blocks on a frictionless surface with masses m1 = 2.0 kg, m2 = 3.0 kg.
As the car accelerates away from a stoplight, in which direction does the balloon move relative to the car? Explain.
Perfluorooctane sulphonate (PFOS) is considered to be a persistent environmental pollutant, with a half life in natural water of approximately 41 years
You are driving north on a highway. Then, without changing speed, you round a curve and drive east.