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A 5.0-kg mass starts from rest and accelerates to a velocity of 8.0 m/s in a time of 10.0 seconds.
a) What is the object's change in momentum?
b) Calculate the force that is acting on the mass.
The image of an object through a diverging lens is 5.00 cm in front of the lens. If the magnification is 0.250,determine object distance and and focal length
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 activity of a radioactive source decreases by 5.2% in 28 hours. What is the half-life of this source
Two parallel wires separated by 4.3 cm repel each other with a force per unit length of 1.6 multiply.gif 10-4 Nm. Find the current in the other wire
A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.
A 2.9cm --diameter parallel-plate capacitor has a 1.6mm spacing. The electric field strength inside the capacitor is 8.0×104 V/m. How much charge is on each plate
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 6.08 × 1018 Hz. What is the wavelength in vacuum of these X-rays
Using a 679-nm wavelength laser, you form the diffraction pattern of a 0.101-mm wide slit on a screen. How far is the screen located from the slit
q1. a 67 kg man weighs 637 n on the earths surface. how far above the surface of the earth would he have to go to lose
Two children ride on a merry-go-round. One is 2 m from the axis of rotation and the other is 4 m from it. Which child has the larger linear speed and acceleration
The movement of the water because of the tides will give kinetic energy to the turbine blades, causing them to spin. In the calculations that follow ignore any frictional drag because of the seawater.
A glass sphere of radius R is placed in air and is illuminated with a beam of parallel rays that propagate along line passing through the center of the sphere. calculate the index of refraction of the glass
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