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Q. Vector A has a magnitude of 7m and makes an angle of 58o with the positive x axis. Vector B also has a magnitude of 7 m and is directed along negative x axis. Enter your answers in distance then angle (in degrees).
Find A+B
Q. The ball remains in contact with the kicker's foot for 0.05 s, all through which time it experiences an acceleration of 390 m/s2. The ball is launched at an angle of 54° above the ground. Establish the horizontal and vertical components of launch velocity.
find the work done by the field on the electron. What is the change in potential energy associated with the electron.
The Earth can be approximated as a sphere of uniform density, rotating on its axis once a day. The mass of the Earth is 5.97×1024 kg, the radius of the Earth is 6.38×106 m, and the time of rotation for the Earth is 24.0 hrs.
Plot the position, velocity, and acceleration of the plane throughout this time interval as a function of time, using initial position of the plane as the origin.
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
A cricket ball is bowled at a speed of 144 km/hr. suppose the ball diameter is 70 mm and a drag coefficient 0.45, estimate the drag force in newtons which would be acting on the ball.
How far apart would the two sphere. Uranium-238 (U238) has three more neutrons than uranium-235 (U235). Compared to the speed of sound in a bar of U235, is the speed of sound in a bar of U238 higher, lower, or the same? There are several factors ..
A 4 cm diameter loop with resistance 0.18 Omega surrounds a 2 cm diameter solenoid. The solenoid is 15 cm long, has 100 turns, and carries the current shown in the graph. A positive current is cw when seen from the left.
the center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth?suppose the density of oil is 8.10^2 ..
A large tanker truck can carry 30 ton (30,000 lb) of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
A bicycle wheel has a diameter of 64.1 cm and a mass of 1.81 kg. suppose that the wheel is a hoop with all of the mass concentrated on the outside radius. The bicycle is placed on a stationary stand and a resistive force of 120 N is applied tangent..
Two charged bodies exert a force of 0.790N on each other. If they are moved so that they are one-fourth as far apart, what force is exerted.
A plane is flying southwest at 155 mi/h and encounters the wind from the west at 45mi/h? what is the planes new velocity with respect to the ground in standard position.
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