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An airplane, diving at an angle of 48° with the vertical, releases a projectile at an altitude of 670 m. The projectile hits the ground 3.43 s after being released. What is the speed of the aircraft?
How far did the projectile travel horizontally through its flight?
What was the horizontal component of its velocity now before striking the ground?
What was the vertical component of its velocity just before striking the ground?
he boat continues for an additional 5.90 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.05 s. What is the velocity of the boat at t = 21.35 s? Find out the total displacement of the boat?
Indicate whether the following statements are always true or can be false. If a net force acts on an object, the object's speed will change. If a net force acts on an object, the object's velocity will change.
A fullback with a mass of 75 kg and a velocity of 4.0 m/s due west collides head-on with a defensive back with a mass of 88 kg and a velocity of 5 m/s due east. What is the initial momentum of each player
735 g of salt is placed into 400 mL of water and stirred thoroughly. How much salt dissolves into the water
Calculate the absoute pressure at the bottom of a fresh-water lake at a depth of 28.9 m. Assume the density of the water is 1.00x10^3 kg/m^3 and the air above is at a pressure of 101.3 kPa
Batman (mass = 95.9 kg) jumps straight down from a bridge into a boat (mass = 683 kg) in which a criminal is fleeing. The velocity of the boat is initially +8.67 m/s. What is the velocity of the boat after Batman lands in it?
Determine the amount of energy the reaction releases. Be sure to take into account the mass of the electrons associated with the neutral atoms.
light of in a vacuum has a wavelength of 574 nm in water and 524 nm in benzene. a using the data for water compute the
q1. ricardo and jane are standing under a tree in the middle of a pasture. an argument ensues and they walk away in
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC. what is the final temperature of the iron block
The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramp..
What is the area of contact of each tire. find the coefficient of static friction between the car and track from these data.
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