Mechanics | Relativity Answers

1. Determine the absolute pressure at the bottom of a lake that is 30 meters deep.

what is the mass in grams of 2.00 cubic inches of gold given that the density of gold is 19.3 g/cm^3 ?

calculate the anglar displacement of a circling aircraft which travels 3 Km along the arc of a circle which 10 Km

A(n) 75.9 kg person throws a(n) 0.059 kg
snowball forward with a ground speed of
31.5 m/s. A second person, of mass 65 kg,
catches the snowball. Both people are on
skates. The first person is initially moving
forward with a speed of 2.36 m/s, and the
second person is initially at rest.
What is the velocity of the first person im-
mediately after the snowball is thrown? Dis-
regard friction between the skates and the ice.
Answer in units of m/s

the gravitation force acting on satellite is always directed towards center of earth does this force exert torque on satellite

what changes could we make in harmonic oscillator that would double the maximum speed of the oscillating object?

A 3.5 kg block falls from a height of 12 m. What is its momentum just before it hits the ground?

I am trying to calculate the center of mass on a project I am building but I'm kind of lost on how to figure it out.
The overall length is 159.5" and width is 52", overall weight is 90lbs with a weight of 175lbs 54" from the left and 80lbs 82.5" from left.
Can you help me figure this out?

For objects in elliptical orbits, the position farther from the gravity source is called the apogee and the position nearer is called the perigee. Compare the speed of a satellite at these two locations.

A dentist uses a small mirror of radius 38 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 11 mm from the tooth, what is the magnification of the image?