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Gray and Juvia casually vibe with each other at the bottom of a 42 m deep lake. It is 2.1°C where they currently are, and 23 °C at the surface. Find the ratio of the volume of one of Juvia’s air bubbles at her current depth to its volume when it reaches the surface.”.
How do you compute the force of attraction between a +1.60 × 10 C charge and a -2.09 × 10C charge if they are 4.01 × 10 m apart?
An object is placed in front of a convex mirror, and the size of the image is one-fourth that of the object. What is the ratio do/f of the object distance to the focal length of the mirror?
A.+3
B.-3
C.-2
D.+2
a 15 gram gun fires a bullet a a muzzle velocuty of 600 m/s. What is the recoil velocity of the gun?
Tom who is traveling at a speed of 67 km/hr sees Jerry 178 m away on the road. What is the minimum constant acceleration must Tom have to avoid Jerry assuming he doesn't move.
Given, Sketch, and Solution of
A large gun fires a shell with a muzzle velocity of 400m/sec. What is the range of the gun when it is elevated at ang angle of 30? and 50?
Given, Sketch, And Solution of the problem?
A cannon is mounted on a railroad car. The cannon fires a 1.75kg ball with a muzzle velocity 300.m/s to the left. The mass of the cannon-car combo is 4500.kg. if all is initially at rest, what is the recoil velocity of the cannon-car?
A steel railroad rail expands and contracts according to the formula Δl = 𝛼lΔT,
where Δl is the change in length, 𝛼 is a constant called the coefficient of linear expansion, l is the original length, and ΔT is the change in temperature. If a 50.0 ft steel rail is installed at 0°F, how many inches will it expand when the temperature rises to 190°F? (𝛼 = 6.5 ✕ 10−6/°F.
A typical light wave has a wavelength of 580 nanometers (580 x 10-9 m).
If the speed of light is 3.0 x 108 m/s what is the frequency of the typical light wave?
