however, the force points in a different direction. When an object slides down a slope, for instance, gravity acts straight downward, but the object moves at an angle. The effective force on the object is a vector quantity related to but separate from the original...
How to use a balance to find the mass of an object? Explain. How do you calculate force from mass? What can be measured in grams and tells how much matter an object contains? You make the following measurements of an object: 42 kg and 22 m3. What would the object's density be?
An object accelerates toward the Earth at a rate of 32 feet per second per second, or 32 ft/s², irrespective of its mass. Scientists refer to this as the acceleration due to gravity. The concept of G's, or "G-forces," refers to multiples of the acceleration due to gravity and th...
A physicist explains why mass is both well-defined and also a bit complicated, especially as the masses get really minuscule.
To find the moment of mass about {eq}x {/eq}-axis, following formula is used: {eq}\displaystyle M_x = \frac{\rho}{2}\int_{a}^{b}\left[f(x)\right]^2... Learn more about this topic: Rolling Motion & the Moment of Inertia ...
(Check out How Light Bulbs Work to find out why heated objects emit light.) The heat of the flame keeps the fuel at the ignition temperature, so it continues to burn as long as there is fuel and oxygen. As you can see, there are three essential elements involved in this process: ...
A miniature thermal emission spectrometer identifies minerals at the site with a little help from infrared wavelengths. It helps find distinctive patterns that could show water movement. On the rover arm is a Moessbauer Spectrometer, which is placed directly on samples to find iron-bearing minerals...
In the absence of bees and other pollinators in space, astronauts manually pollinate plants using small brushes or by shaking the plants to distribute pollen. This ensures that flowering plants can produce fruits and seeds. Can space-farmed plants taste different from Earth-grown ones? Yes, plant...
Unfortunately, not all gyms have Power Racks. You may have to find a better gym that has one. Or you may have to buy your own Power Rack, put it in your garage, basement or shed, and build a home gym as I’ve done. This takes time, effort and cash. But it takes less of it...
Most people setup with the bar almost over their toes to avoid hitting their shins. But this puts the bar in front of your balance point and further from your center of mass. The weight will pull you forward when it leaves the floor. It will make you lose balance and feel harder on ...