One strategy in a snowball fight is to throw a snowball at a high angle over level ground. while your opponent is watching the first one, a second snowball is thrown at a low angle timed to arrive before or at the same time as the first one. assume both snowballs are thrown with a speed of 20.0 m/s. the first one is thrown at an angle of 75.0° with respect to the horizontal. (a) at what angle should the second snowball be thrown to arrive at the same point as the first? (b) how many seconds later should the second snowball be thrown after the first to arrive at the same time?

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?