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You are given the following pairs of scores on X (preschool social skills) and Y (receptive vocabulary at the end of kindergarten).
a. Find the linear regression model for predicting Y from X.
b. Use the prediction model obtained to predict the value of Y for a new child who has a value of 48 for X.
A bungee cord is stretched between two poles with a force of 373 N. The length of the cord is 33 meters and it has a mass of 7 kg. What is the velocity of a wave on this bungee cord?
The force applied to the cart in Question A by springscale F1 is still 12.25 N. What are the magnitude and direction of the frictional force
A microwave oven has a power requirement of 1249 W. A frozendinner requires 6.3 min to heat of full power. How much eletrical energy (inkWh) is used?-----kWh
a block of mass m1.665kg is floating stationary in a beaker of water. a string connected to the bottom of the beaker
A 1100- kg car rolling on a horizontal surface has speed v= 50 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?
a solid nonconducting sphere has a radius of 50.0 cm. it has a uniform charge density of 3.00times10-3 cm3. what is the
One component of a metal sculpture consists of a solid cube with an edge of length 0.277 m. Find the cube's mass
A red light of wave length 6.65x10^-7 is an incident beam perpendicular to a surface of glass. n=1.65 for glass. Calculate wavelength of red light in film
A 6.00kg block is pushed 9.25m up a smooth 39.0? inclined plane by a horizontal force of 73.0N. Calculate the initial kinetic energy of the block
What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight, What must the charge (sign and magnitude) of a particle of mass 1.40g
A hollow ball with mass 0.50kg and radius 10cm rolls down a 3.0m high ramp without sliding.What is the maximum hight that the ball reaches?
An 8.40 gram bullet has a speed of 1.13 km/s. Determine what is its kinetic energy in joules, Determine what is the bullet kinetic energy if its speed is halved
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