Physics, 23.10.2019 17:30 lieunekop8fm90
To understand the distinction between mass and weight and to be able to calculate the weight of an object from its mass and newton's law of gravitation. the concepts of mass and weight are often confused. in fact, in everyday conversations, the word "weight" often replaces "mass," as in "my weight is seventy-five kilograms" or "i need to lose some weight." of course, mass and weight are related; however, they are also very different. mass, as you recall, is a measure of an object's inertia (ability to resist acceleration). newton's 2nd law demonstrates the relationship among an object's mass, its acceleration, and the net force acting on it: f net=ma . mass is an intrinsic property of an object and is independent of the object's location. weight, in contrast, is defined as the force due to gravity acting on the object. that force depends on the strength of the gravitational field of the planet: w =mg , where w is the weight of an object, m is the mass of that object, and g⃗is the local acceleration due to gravity (in other words, the strength of the gravitational field at the location of the object). weight, unlike mass, is not an intrinsic property of the object; it is determined by both the object and its location. which of the following quantities would be acceptable representations of weight? check all that apply.
a.) 12.0 lb
b.) 0.34 g
c.) 120 kg
d.) 1600 kn
e.) 0.34 m
f.) 411 cm
Answers: 2
Physics, 22.06.2019 15:40, byronanderson
If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.
Answers: 1
Physics, 23.06.2019 00:20, tacowilliam20
The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g
Answers: 2
Physics, 23.06.2019 02:20, nina1390
Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00
Answers: 1
Physics, 23.06.2019 03:00, OliTepley5966
How can a cyclist's acceleration change even if its velocity remains constant?
Answers: 1
To understand the distinction between mass and weight and to be able to calculate the weight of an o...
English, 24.11.2020 14:30
Mathematics, 24.11.2020 14:30
Geography, 24.11.2020 14:30
Health, 24.11.2020 14:30
Mathematics, 24.11.2020 14:30
Social Studies, 24.11.2020 14:30