A train moves from rest to a speed at 25m/s in 30.0 seconds. What is it's acceleration?

g An electric hot plate raises its own internal energy and the internal energy of a cup of water by 9000J, and there is at the same time 2700J transferred to the cooler air. How much energy was transferred to the hot plate in the form of electricity

Two children weighing 17 and 25 kilograms are sitting on opposite sides of a seesaw, both 2 meters from the axis of rotation. where on the seesaw should a 10-kilogram child sit in order to achieve equilibrium?

A solid metal sphere of radius a = 2.5 cm has a net charge Qin = - 3 nC (1 nC = 10-9C). The sphere is surrounded by a concentric conducting spherical shell of inner radius b = 6 cm and outer radius c = 9 cm. The shell has a net charge Qout = + 2 nC.

Find the moment of inertia Ix of particle a with respect to the x axis (that is, if the x axis is the axis of rotation), the moment of inertia Iy of particle a with respect to the y axis, and the moment of inertia Iz of particle a with respect to

The wavelength of a waterwave is 4.0 X 10^2 m. The wave approaches land at 25 m/s what is the period of the wave?

The linear, step wise representation of the process of science from the traditional scientific method, while simplified, does capture the core logic of science: testing ideas with evidence. 1.) True 2.) False

Most arson fires are produced through what? Accelerants Dynamite Chemical residues Steroids

A block with mass m1 = 9.4 kg is on an incline with an angle θ = 25° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.22 and μs = 0.242.

When an electric current flows through a wire a magnetic field is created. To increase the power of the magnetic field you would A.

When Holly injures her shoulder playing baseball, she uses an instant ice pack to reduce the swelling. She breaks the inner, activator portion of the instant cold pack releasing the solid urea into the surrounding water.