A box is lifted at a constant speed of 7.0 m/s by a machine. If the power of the machine is 21000 W, then the force applied is equal.

A jet of water issuing from a stationary nozzle at 10 m / s (aj = 0. l m2) strikes a turning vane mounted on a cart as shown. the vane turns the jet through angle fj = 40°. determine the value of m required to hold the cart stationary

The aqueduct passes under Johnson Road in Lancaster through a siphon. The maximum capacity of the aqueduct is 350 m3/s. The height difference from the upper to the lower channels is about 2 m and the distance between them is about 100 m.

Name the 2 types of tissue that form your skin?

How can the strength of an electromagnet's field be decreased? A. by decreasing the number of loops in the solenoid B. by winding the coils more tightly C. by using a stronger ferromagnetic material for the core D.

4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a) 5.0 seconds b) 0.50 seconds c) 0.05 seconds

What was the year and location of james chadwick's experiment?

A symmetric projectile spends a total of 6 seconds in the air. How long does it take to reach its peak height? The projectile has a starting velocity of 8m/s.

A shipn sends out ultrasound that returns from the seabed and is detected after 5 seconds. if the speed of ultrasound through seawater is 1600 m/s what is the distance of the seabed from the ship?

What planet has the longest period of revolution?

How does the potential energy of an object change when its height is tripled