Who invented the electricity we use today? Benjamin Franklin What is the application of electricity in our daily life? Electricity is an essential part of modern life and important to the U.S. economy. People use electricity for lighting, heating, cooling, and refrigeration and for operating appliances, computers, electronics, machinery, and public transportation systems. What is […]
What happened to Theia?
What happened to Theia? The model also assumed that the mantle of the theorized planet Theia was rich in iron, making it extremely dense. In their model, Theia winds up mostly destroyed, with pieces flung into space to create the moon, and much of its mantle breaking into fragments, which make it all the way […]
Which of the following are examples of mitigation?
Which of the following are examples of mitigation? Other examples of mitigation measures include: Hazard mapping. Adoption and enforcement of land use and zoning practices. Implementing and enforcing building codes. Flood plain mapping. Reinforced tornado safe rooms. Burying of electrical cables to prevent ice build-up. Raising of homes in flood-prone areas. What are the priorities […]
What is the magnitude of the horizontal component of the velocity?
What is the magnitude of the horizontal component of the velocity? The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a […]
Which of the following property of a charge can change when it moves freely in a uniform perpendicular magnetic field?
Which of the following property of a charge can change when it moves freely in a uniform perpendicular magnetic field? The magnetic force acts perpendicular to the direction of motion of the proton. It does not change its mass and speed but changes its direction of motion. So both velocity and momentum get changed. What […]
What happens at the beginning of every roller coaster ride?
What happens at the beginning of every roller coaster ride? What happens at the beginning of every roller coaster ride? The car is pulled up a long hill. [The roller coaster cannot go higher than the first hill because the total energy of the roller coaster cannot increase unless energy is added.] What happens to […]
What is 3D triangle called?
What is 3D triangle called? In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. How do you identify 3D shapes? In geometry, a three-dimensional shape can be defined as a solid figure or an object […]
What traits are dominant and recessive?
What traits are dominant and recessive? The traits due to dominant alleles are always observed, even when a recessive allele is present. Traits due to recessive alleles are only observed when two recessive alleles are present. For example, the allele for widow’s peak is dominant and the allele for straight hairline is recessive. How do […]
How dangerous is the asteroid belt?
How dangerous is the asteroid belt? The danger lies not in the risk of hitting a large object. The number of objects in the asteroid belt increases steeply with decreasing size, but even at micrometer sizes the Pioneer spacecraft were hit only a few times during their passage. That is not to say that asteroids […]
What happens to the resistivity of wire if it is stretched?
What happens to the resistivity of wire if it is stretched? The resistance of a wire is inversely proportional to its area and directly proportional to its length. When the length is tripled then resistance will also become three times. If The wire is stretched 3 times the original length, the cross-section of the wire […]