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A 22.0 kg child slides down a slide that makes a 37.0° angle with the horizontal.
(a) What is the magnitude of the normal force that the slide exerts on the child?
(b) At what angle from the horizontal is this force directed? State your answer as a number between 0 and 90°.
A generator rotates at 95Hz in a magnetic field of 0.025T . It has 650 turns and produces an rms voltage of 180V, What is the peak current produced
suppose after the ball reaches the ground ,it bounces back straight upwards at the speed of half of the speed that it hits the ground, calculate the maximum height that the ball bounces
An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is needed to convert the ice cube to water at ..
A boat moves through the water of a river at 10-m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 1.6-m/s.
A double slit has two slits of width 0.650 mm separated by a distance between centres of 2.340 cm. How many interference fringes could be seen under the diffraction central maximum
A surveyor is using a magnetic compass 7.7 m below a power line in which there is a steady current of 100 A. What is the magnetic field in microteslas
An insulated Thermos contains 210 cm3 of hot coffee at 88 °C. You put a 19.00 g ice cube at its melting point to cool the coffee. By how many degrees has the coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as though..
A projectile os fored at 35 degrees above the horizontal. Its initial speed is equal to 100 m/s. What is the maximum height reached by the projectile
what is the Tension in the string, distance of spheres from one another at equilibrium, the charge on each sphere.
An object is placed 13.1 cm to the left of a diverging lens of focal length -6.04 cm. Find the distance d that places the final image at infinity
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.00 10-28 kg, what is the speed of the heavier fragment
A 1100kg car traveling south at 24 m/s with respect to the ground collides with and attaches to a 2550kg delivery truck traveling east at 16 m/s. Determine the direction of the velocity of the two vehicles
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