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A block with mass m = 19.7 kg slides down an inclined plane of slope angle 35.8 deg with a constant velocity. It is then projected up the same plane with an initial speed 1.05 m/s. How far up the in
After falling from rest from a height of 34 m, a 0.45 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the
Describe the reaction force(newton third law) by stating its magnitude,direction,on what object it is exerted and what object it is exerted.
What force does the runner's hand exert on each weight at the bottom of the swing? answer should be in newtons
A loudspeaker of mass 23.0 {rm kg} is suspended a distance of h = 1.80 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10 {rm m}.&nb
Suppose the driver in this example is now moving with speed 39.8 m/s, and slams on the brakes, stopping the car in 4.2 s. Find the acceleration and the distance the car travels, assuming the acceler
Two 275 kg (611 lb) masses are separated by a distance of 10 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other.
A bead slides on a wire without friction around a loop-the-loop of radius 1.0 m. The bead is released with a speed 1 m/s from a height h= 3.8 m where h is measured from the bottom of the loop. What
A race car starting from rest accelerates at a constant rate of 5.10 m/s2. What is the velocity of the car after it has traveled 1.32 102 ft?
If the maximum acceleration the vehicle's brakes are capable of is -7 m/s2, what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the deer?
The tank in Figure P 14.13 is filled with water of depth d 5 2.00 m. At the bottom of one sidewall is a rectangular hatch of height h 5 1.00 m and width w 5 2.00 m that is hinged at the top of the
An intergalactic rock star bangs his drum every 1.30 s. A person on earth measures that the time between beats is 2.30 s. How fast is the rock star moving relative to the earth?
You and a friend each drive 50.0 km. You travel at 84.0 km/h; your friend travels at 93.0 km/h. How long will your friend wait for you at the end of the trip?
Two carts with masses of 4.9 kg and 3.6 kg move toward each other on a frictionless track with speeds of 5.9 m/s and 5.0 m/s, respec- tively. The carts stick together after colliding head-on. Find t
The heels on a pair of women's shoes have radii of 0.42 cm at the bottom. If 32% of the weight of a woman weighing 580 N is supported by each heel, find the stress on each heel.
A flight attendant pulls her 63.7 N flight bag a distance of 336 m along a level airport floor at a constant velocity. The force she exerts is 44.4 N at an angle of 65.7° above the horizontal. F
How long does it take the crate to hit the ground? (b) How far horizontally is the crate from the point where it fell off when it hits the ground?
A 2000 kg car is slowed down uniformly from 21.0 m/s to 9.00 m/s in 4.40 s. What average total force acted on the car during that time?
A race car has a mass of 706 kg. It starts from rest and travels 41.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?
Two circular loops of wire, each containing a single turn, have the same radius of 5.0 cm and a common center. The planes of the loops are perpendicular. Each carries a current of 1.9 A. What is th
Determine the Force required to raise a 25.5 kg object by 2 pulleys, the diameter of the larger circular pulley is 12.0 cm and the smaller pulley is 8.50 cm.
An infinitely long cylinder of radius R = 2 cm carries a uniform charge density ρ = 18 μC/m3. Calculate the electric field at distance r = 1 cm from the axis of the cylinder.
The maximum deceleration of your car is 11m/s^2. How much distance is between you and the deer when you come to a stop?
What is the potential difference between the plates after the dielectric was inserted?
An electron moving parallel to the x axis has an initial speed of 3.70 × 106 m/s at the origin. Its speed is reduced to 1.40 × 105 m/s at the point x = 2.00 cm. Calculate the potential