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A basketball player makes a jump shot. The 0.607 kg ball is released at a height of 1.97 m above the floor with a speed of 7.22 m/s, What is the work done on the ball by air resistance
The masses of Chuck and Jackie are both m1. Chuck then picks up a motionless ball of mass m2, In the end, what is Jackie's speed with respect to Chuck
As part of a carnival game, a 0.578-kg ball is thrown at a stack of 17.8-cm tall, 0.383-kg objects and hits with a perfectly horizontal velocity of 12.8 m/s. what is the moment of inertia of the obj
Three capacitors numbered 1, 2 & 3, each have the same value of capacitance, What is the effective total capacitance
In an ice show a 45.0 kg skater leaps into the air and is caught by an initially stationary 85.0kg skater. What is their final velocity assuming negligible friction and that the leaper's original hori
A 0.362 kg bead slides on a curved wire, starting from rest at point A, find the speed of the bead at C
During a car crash a 65 kg person's head goes from travelling at 50 km ??!??to stationary in 0.15 s. What is the magnitude of the average net force acting on the person's 4.5 kg head
6.95-kg bowling ball moving at 10.0 m/s collides with a 1.60-kg bowling pin, Calculate the final velocity (magnitude and direction) of the bowling ball
A 4.90?F capacitor that is initially uncharged is connected in series with a 8.00k? resistor, A long time after the circuit is completed (after many time constants) what is the voltage drop across the
HCl has a dissociation energy of De = 7.41x10^-19 J and a harmonic vibrational frequency of 2900 cm-1. calculate the anharmonicity constant
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
Four identical springs with k = 65.3kN/m support a car, Find the maximum weight for the car if the springs should be compressed no more than 3.9cm when the car is at rest
Arranged on the floor are five concrete blocks, each 28.4kg and 0.265m tall. What is the minimum work required to stack all five vertically
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.40×106N , What is the total work done by the two tugboats on the supertanker
a bucket of mass 2 kg is whirled in vertical circle of radius 1.10m. at the lowest point of its motion the tension in the rope supporting the bucket 25 N, find the speed of the bucket
A uniform disk with a mass of 813g and a radius of 17cm is rotating on frictionless bearings with a rotational speed of 18Hz, what is the new rotational speed of the disk
A scaffold of mass 60 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
The eight ball m = 0.5 kg is initially moving with a velocity v = 4.2i m/s. What is the magnitude of the velocity of the eight ball after the collision in m/s
A meter stick with a mass of 0.159kg is pivoted about one end so it can rotate without friction about a horizontal axis. Calculate the angular speed of the stick
A material is formed into a long rod with a square cross section 0.59 cm on each side. What is the resistivity of the material
A variable force of the form F=3x2 + 2x + 5 N acts on a 2 kg object as it moves from x = 2 m to x = 3 m. How much work is done by this force
Two carts collide in a perfectly elastic collision. Cart A has a mass of 0.5 kg and an initial velocity of 0.19 m/s. What is the final speed of each cart
Suppose a molecular motor consumes 3 ATP molecules in every step. If this motor has a step size of 5.8 nm, what is the maximum force the motor could exert
Consider the skateboarder in the figure below. If she has a mass of 49 kg, an initial velocity of 23 m/s, what is the work done by friction on the skateboarder
A car's starter motor draws 55 A from the car's battery when starting up. If the start-up time is 2.4 s, how many electrons pass a location in the circuit during that time