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a) Why would 20 degrees have a higher range (delta x) than 15-20 degrees?
b) how does friction applied to the hot wheels track?
c) how does air resistance applied to the hot wheels track?
A child moves with a speed of 5.40 m/s when positioned 14.0 m from the center of a merry-go-round. Calculate the net force (in newtons) exerted on the child, whose mass is 26.0 kg
The maximum speed of a small girl on a swing is 3.96m/s. Calculate how high above the ground is she at her highest point
A disk-shaped merry-go-round of radius 2.03m and mass 185kg rotates freely with an angular speed of 0.671rev/s. What is the final angular speed of the merry-go-round
What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 21 km/h
A 1432.0 g mass is on a horizontal surface with μk = 0.44, Calculate the distance the spring was compressed. What is the velocity of the mass as it loses contact with the spring
A 14.1-g bullet is accelerated from rest to a speed of 793 m/s in a rifle barrel of length 66.9 cm. (a) Find the kinetic energy of the bullet as it bullet as it leaves the barrel.
A box is hanging from a chain having a mass of 60 kg. The box has a mass of 78 kg. Find the tension in the top of chain and the bottom of the chain.
To warm up for a match, a tennis player hits the 56.0 ball vertically with her racket. what impulse did she impart to it
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum. How wide is the slit?
A metallic sphere has a charge of +3.7 nC. A negatively charged rod has a charge of -6.0 nC. find the charges of the sphere and the rod
two point charges -2q and 3q are on the x-axis -2q at the origin and 3q at x d. choose the potential to equal zero at
A thin film of oil (n=1.24) is laying on a flat piece of glass (n=1.83). When viewed through air normal to the oil film, What is the minimum thickness of the oil film
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