Physics, 01.11.2019 04:31 jordan2875
A57 g tennis ball is traveling at 45 m/s to the right, when it hits a racket. the ball reversed direction and travels at 33 m/s. the ball is in contact with the racket for 0.0085 s.
what is the magnitude of the force that was exerted on the ball?
a. 1.8n
b. 12n
c. 81n
d. 520n
Answers: 1
Physics, 22.06.2019 11:00, zhjzjzzj6325
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 21:30, missy9225
A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.
Answers: 2
Physics, 23.06.2019 00:20, AreYouMyNewDad
Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)
Answers: 1
Physics, 23.06.2019 08:00, TheGaines4life
A10n falling encounters 10n of air resistance (upward force). the net force on the object is:
Answers: 1
A57 g tennis ball is traveling at 45 m/s to the right, when it hits a racket. the ball reversed dire...
Mathematics, 13.12.2020 20:50
History, 13.12.2020 20:50
Biology, 13.12.2020 20:50
Biology, 13.12.2020 20:50
Mathematics, 13.12.2020 20:50
Mathematics, 13.12.2020 20:50
Mathematics, 13.12.2020 20:50