4. A dart gun is fired horizontally from a height of 1.5 m above the floor. The dart then lands on the floor 4 meters from the edge of the table. Determine the initial velocity when it leaves the
launcher

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

How many times did thomas edison mess up the light bulb