Physics, 16.10.2019 04:30 miklin4677
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. while your opponent is watching this first snowball, you throw a second snowball at a low angle and time it to arrive at the same time as the first. assume both snowballs are thrown with the same initial speed 32.3 m/s. the first snowball is thrown at an angle of 72◦ above the horizontal. at what angle should you throw the second snowball to make it hit the same point as the first? the acceleration of gravity is 9.8 m/s 2 . answer in units of ◦ .
Answers: 3
Physics, 22.06.2019 11:50
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
Physics, 22.06.2019 18:30
Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?
Answers: 1
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. while you...
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