Generate Quiz 68D4C420DF485

This calculation is simple.

I is equal to Q/t.

Q = It

I equals 2.0 amps.

10 minutes is equal to 10 x 60 = 600 seconds.

2.0 x 600 = 1200 C is Q.

This is the right choice. Space-time geometry is the right response (c). Our understanding of gravity was drastically changed by Einstein’s theory of relativity, both special and general. General relativity states that gravity is a curvature of space-time brought on by the presence of mass and energy rather than a force. According to this theory, the curvature of space-time affects how objects move, producing the effects that we see as gravity.

Because the object’s vertical position can only be affected by a constant acceleration and because the horizontal velocity is typically constant, projectile motion is parabolic. In other words, due to its associated equation of motion, basic projectile motion is parabolic.

The rate at which velocity changes is called acceleration. Option B is therefore accurate.

The formula D=E/m states that doubling the dose requires doubling the energy.

The purpose of a step-down transformer is to lower the input signal’s voltage. The voltage turn ratio can be defined as the secondary coil’s turn ratio divided by the primary coil’s turn ratio. The secondary coil’s number of turns is half that of the primary coil in a step-down transformer with a voltage turn ratio of 2:1. In other words, half of the input voltage is the output voltage. For instance, the output voltage will be 60 volts if the input voltage is 120 volts. Thus, a step-down transformer that has a 2:1 voltage turn ratio lowers the input signal’s voltage by a factor of two.

An electromotive force (emf) is created in an electric circuit when the magnetic flux associated with it changes. We refer to this as electromagnetic induction. It is the process by which an electrical conductor in a fluctuating magnetic field generates an electromotive force (emf). In the opposite direction of the magnetic flux change, the emf is induced. Early in the 19th century, Michael Faraday made the initial discovery.

Current times voltage equals power.

1.5 x 220

P is equal to 330 watts.

Since acceleration is a vector quantity—that is, it has a direction and magnitude—option C is accurate. It explains the changes in motion’s direction and speed.

Because gamma rays lack an electric charge, they interact with matter less strongly than charged particles, which accounts for their high penetration power.

In an electric or magnetic field, they do not deflect in the direction of any of the charged or polarized plates.

The amount of charge and velocity in each of the two objects and magnetic field determines the strength of the magnetic force between them.

Option B is accurate because a projectile’s horizontal velocity is constant, meaning it never changes. Gravity causes a vertical acceleration of 9.8 ms-2, downward, which causes a projectile’s vertical velocity to change by 9.8 m/s every second.

The specific heat at constant pressure is denoted by CP, and the specific heat at constant volume by CV.

The work done on a gas when it is heated at a constant volume raises the system’s internal energy. When a gas is heated at constant pressure, work is done to overcome the pressure, and the system’s internal energy increases as the volume expands. Consequently, it can be concluded that Cp exceeds Cv.

Regarding an ideal gas,

Cp – Cv = R.

Therefore, it is also mathematically possible to demonstrate that Cp exceeds Cv.

ΔU=∆Q-∆W

∆Q=∆U+∆W

If Q = -300 + (-120) = -300-120 = -420 J, then

X-rays are frequently used to examine crystal structures. We call this X-ray crystallography. The diffraction patterns that result from X-rays’ interaction with a crystal lattice can be examined to ascertain the atoms’ arrangement within the crystal. The structures of numerous significant molecules, such as proteins and intricate organic compounds, have been clarified thanks in large part to this technique.

Potential difference is what PD stands for. Option A is therefore accurate.

The atom’s electron transition releases chargeless electromagnetic radiation.

A charge is present in alpha rays. Therefore, it is safe to assume that alpha rays would not be released as a result of electron transitions within an atom.

Z + 1, A: According to this option, the electron is released from the electron cloud, changing the nucleus’s atomic number (Z) but leaving its mass number (A) unchanged. Since the number of protons and neutrons in the nucleus is unaffected by the emission of an electron, this choice is accurate.

In electromagnetic waves, frequency and wavelength have an inverse relationship. Increasing the frequency of light causes the wavelength to decrease, which raises the photons’ energy as previously stated. Therefore, it would be possible to overcome the threshold energy and induce electron emission by raising the light’s frequency. Higher frequency light is more likely to exceed the work function of the material because it contains more energy per photon.

Transformers require AC voltage to function.

Since the flux change is negative, the answer should be C because negative times negative equals positive.

We must compute the average of the squares of the individual speeds in order to determine the mean square speed of the gas sample. Thus,

Average squared speed = (1)² + (2)² + (3)² / 3.

= 1 + 4 + 9 / 3.

= 14 /3

As a result, 14/3ms-1 is the mean square speed.