Determining the initial velocity of the ball
A batted baseball leaves the bat at an angle of 37 degrees above the horizontal and is caught by an outfielder 120m from the plate. The x-axis is horizontal, and they y-axis is vertical.
What is the initial velocity of the ball?
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Why is it important to know amount of water in a petroleum product?(i.e. the free water and the dissolved and emulsifiedwater) Why is important to know the amount of water and the amount of sediment in a petroleum product?
Determine the required balloon volume if a) The balloon is filled with hot air at 400 K. b) The balloon is filled with helium at ambient temperature.
A yo-yo has a rotational inertia of 790 g·cm2 and a mass of 95 g. Its axle radius is 2.2 mm and its string is 100 cm long. The yo-yo is thrown so that its its initial speed down the string is 1.2 m/s. As it reaches the end of the string, wha
Suppose a mixture contains helium and oxygen gases. If the partial pressure is the same as the partial pressure of oxygen, what do you know about the number of helium atoms compared to the number of oxygen molecules?
A batted baseball leaves the bat at an angle of 37 degrees above the horizontal and is caught by an outfielder 120m from the plate. The x-axis is horizontal, and they y-axis is vertical. What is the initial velocity of the ball?
The specific enthalpy of steam is 2974 kJ/kg at 260ºC and 7 bar and 2860 kJ/kg at 200ºC and 4 bar. Use the open-system energy balance to calculate the exit steam velocity.
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The net ionic equation for the aqueous neutralization reaction between acetic acid and sodium hydroxide is different from that for the reaction between hydrochloric acid adn sodium hydroxide. Explain by writing balanced net ionic equations.
You pull a 12-kg box across the floor with a strap that is at an angle of 45° above the horizontal. Find the normal force and the tension in the strap, given that the box moves with constant speed and that the coefficient of kinetic friction b
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