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A body moving at a constant speed can accelerate if it is in circular motion. This is because acceleration is a change in velocity, and velocity is a vector quantity, meaning it has both magnitude (speed) and direction. In circular motion, the direction of the velocity is constantly changing, even if the speed is constant, so there is acceleration.

a = \(\frac{v - u}{t} = \frac{10 - 10}{5} = 0\)m/s

Rectilinear acceleration refers to the acceleration experienced by an object moving in a straight line (rectilinear motion). Acceleration is defined as the rate of change of velocity with respect to time, which aligns with the rate of increase of velocity along a straight-line path.

No expanded working has been attached for this question yet. The verified answer is Option C.

v = \(\sqrt{U^2} + 2as = \sqrt{0^2} + 2 \times 2 \times 9 = 6\)m/s

a = \(\frac{F}{m} = \frac{100}{0.15} = 666.7\) v = u + at = 0 + 66.7 x 0.03 = 20m/s2

S = at + \(\frac{1}{2} at^2\) 60 = 0 x 20 + \(\frac{1}{2}\) x a x 20\(^2\) a = \(\frac{60}{200}\) a = \(\frac{3}{10}\)m/s\(^2\) F = ma = 800 x \(\frac{3}{10} = 240N\)

V.R = \(\frac{1}{sin\theta} = \frac{1}{sin 30} = 2\) M.A = \(\frac{E \times V.R}{100} = \frac{50 \times 2}{100} = 1\) Effort = \(\frac{load}{M.A} = \frac{120}{1} = 120N\)

No expanded working has been attached for this question yet. The verified answer is Option C.

No expanded working has been attached for this question yet. The verified answer is Option C.

Ya = \(\frac{\text{Vol. expelled}}{\text{Vol. left x temp. change}} = \frac{0.75}{49.25 \times 50}\) = 0.00030k-1

\(\frac{P_1}{T_1} = \frac{P_2}{T_2} = \frac{3}{300} = \frac{5}{T_2}\) T\(_2\) = 500^\circC ^\circC = 500 - 273 = 227^\circ

Resonance occurs when a body is forced to vibrate at its own natural frequency by another body vibrating at the same frequency.

X–rays are a stream of particles that are emitted when fast accelerating or moving electrons collide with a tungsten target. X-rays are produced when electrons produced by thermionic emission are accelerated through high voltage and are focused onto a tungsten target. The accelerated electrons strike the tungsten target, transform into heat, and emit radiation called x-rays. So the correct sequence of energy transformation in the operation of an X-ray tube is Option C.

No expanded working has been attached for this question yet. The verified answer is Option B.