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From rest, a 26.7 kg child is sliding down a 5.12 meter long playground slide in a time of 1.98 seconds. The slide forms a 32 degree with the horizontal ground. Assume that the child stays in contact with the slide for its entire length and that there is friction between the child and slide.
(a) Calculate the child's weight,
(b) Calculate the child's acceleration along the slide,
(c) Calculate the value of kinetic friction, and
(d) calculate the kinetic friction constant.
Calculate the ratio of the number of HBr molecules in state
Find an expression for the loop's velocity as a function of time as it enters the magnetic field. You can ignore gravity, and you can assume that the back edge of the loop has not entered the field
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 205 N/m. Find the spring constant of spring 2.
A car tire is 64.0cm in diameter. The car is traveling at a speed of 16.0m/s. What is the tire's rotation frequency
A 78-kg man standing on a scale in an elevator notes that as elevator rises, the scale reads 834 N. What is the acceleration of the elevator.
Write down an equation for the radial component
Find the electric field strength from the wire. How long is each spring when hanging as shown.
A 450 nm laser is shown through a single slit. A second 450 nm laser is shown through a double slit. Find the location of the third order minimum for both the single and double slit
The temperature of a black body can be estimated based on the wavelength of light that it is emitting, Find the surface temperature of a star
300 J of work are done to compress the gas as, in the same process, 1200 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules.
A jet engine emits sound uniformly in all directions, radiating an acoustic power of 3.89 × 102 kW, calculate the corresponding sound intensity level
The space shuttle begins its landing at a speed of 357 km/hr at an angle of 13 degrees below the horizontal. Illustrate what are the horizontal and vertical components of its velocity?
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