A man claps and the echo produced from the wall tall building reaches our earlier after 0.24 seconds .If the speed of sound in air is 333.5m/so. Calculate the distance between man and the wall. Explain

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

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

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final