Question
How many basic units are there in the international system?
✓
Answer
Meter (m), Kilogram (kg), Second (s), Ampere (A), Kelvin (k), Candela (Cd) mole (mol).
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Similar questions
For any arbitrary motion in space, which of the following relations are true?
(a) $\vec{v}_{\text {avg }}=(1 / 2)\left[\vec{v}\left(t_1\right)+\vec{v}\left(t_2\right)\right]$
(b) $\vec{v}_{ avg }=\left[\vec{r}\left(t_2\right)-\vec{r}\left(t_1\right)\right] /\left(t_2-t_1\right)$
(c) $\vec{v}(t)=\vec{v}(0)+\vec{a} t$
(d) $\vec{r}( t )=\vec{r}(0)+\vec{v}(0) t+(1 / 2) \vec{a} t^2$
(e) $\vec{a}_{\text {avg }}=\left[\vec{v}\left(t_2\right)-\vec{v}\left(t_1\right)\right] /\left(t_2-t_1\right)$
Here, 'average' means the average values of physical quantities related to the time interval $t_2$ and $t_1$.
→(a) $\vec{v}_{\text {avg }}=(1 / 2)\left[\vec{v}\left(t_1\right)+\vec{v}\left(t_2\right)\right]$
(b) $\vec{v}_{ avg }=\left[\vec{r}\left(t_2\right)-\vec{r}\left(t_1\right)\right] /\left(t_2-t_1\right)$
(c) $\vec{v}(t)=\vec{v}(0)+\vec{a} t$
(d) $\vec{r}( t )=\vec{r}(0)+\vec{v}(0) t+(1 / 2) \vec{a} t^2$
(e) $\vec{a}_{\text {avg }}=\left[\vec{v}\left(t_2\right)-\vec{v}\left(t_1\right)\right] /\left(t_2-t_1\right)$
Here, 'average' means the average values of physical quantities related to the time interval $t_2$ and $t_1$.
Mention the law of equal division of energy.
In the given progressive wave $\text{y}=5\sin(100\pi\text{t+0.4x})$ where y and x are in m, t is in s. What is the:
Amplitude
→Amplitude
What is the distance between a compression and its nearest rarefaction in a longitudinal wave?
What do the graphs given below have in common?
A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of $12 m s ^{-1}$. If the mass of the ball is $0.15 kg$, determine the impulse imparted to the ball. (Assume linear motion of the ball)
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If tension of a wire is increased to four times, how is the wave speed changed?
State the number of significant figures in the following:
0.0006032m2
0.0006032m2
Give the geometrical meaning of S.H.M.