Physics, 15.07.2021 20:40 dntestkly4581
A foul ball is hit straight up into the air with a speed of 40.0 m/s. YOU MUST SHOW ALL YOUR WORK TO GET ANY POINTS!!! (a) Calculate the time required for the ball to rise to its maximum height. (b) Calculate the maximum height reached by the ball. (c) Determine the time at which the ball pass a point 25.0 m above the point of contact between the bat and ball. (d) Explain why there are two answers to part (c). (e) What speed should the ball be hit to reach a maximum height of 384400 km (the distance to the moon)
Answers: 1
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ï where l is the length of the string, t is its tension, and Ï is its linear density.â (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ï are constant) (ii) the tension (when l and Ï are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is â f is â (ii) when the tension is increased by turning a tuning peg df dt 0 and t is â f is â (iii) when the linear density is increased by switching to another string df dÏ 0 and Ï is â f is â
Answers: 3
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
Answers: 1
Physics, 22.06.2019 22:40
Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth
Answers: 1
Physics, 23.06.2019 00:30
Madison lives near the ocean. sheâs formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:
Answers: 1
A foul ball is hit straight up into the air with a speed of 40.0 m/s. YOU MUST SHOW ALL YOUR WORK TO...
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