2 years ago

a stone is vertically thrown upward with the velocity of 72km/hr find the maximum height reached the height

Physics

1 answer:

dolphi86 [110]2 years ago

3 0

Answer:

40m

Explanation:

v^2=gh

h=v^2/g

h=20^2/10

h=400/10

h=40

You might be interested in

How much momentum does a 77 kg football player have if he is running with a speed of 4 m/s

worty [1.4K]

Answer:

308 N-s

Explanation:

Momentum is given by

P= mv

P= 77 x 4

P= 308

4 0

2 years ago

A satellite of Mars, called Phobos, has an orbital radius of 9.4 ✕ 106 m and a period of 2.8 ✕ 104 s. Assuming the orbit is circ

FromTheMoon [43]

Answer:

$6.27*10^{23}kg$

Explanation:

assume

M= mass of Mars

m=mass of phobos

r=orbital radius

T=period

we can apply F=ma to this orbital motion (considering the cricular motion laws)

where,

$F=\frac{GMm}{r^{2} }$ and a=rω^2

where ω= $\frac{2\pi }{T}$ and G is the universal gravitational constant.

G = 6.67 x 10-11 N m2 / kg2

$F=ma\\\frac{GMm}{r^{2} }=mr(\frac{2\pi }{T} )^{2}\\ M=\frac{r^{3}}{G} (\frac{2\pi }{T} )^{2}\\M=\frac{(9.4*10x^{6} )^{3}*(2\pi )^{2} }{(2.8*10^{4}) ^{2} *6.67*10^{-11} } \\M=6.27*10^{23}kg$

6 0

3 years ago

The mass of an electron is _______. What is it?

SOVA2 [1]

If a mass of a neutron is 1 the electron mass is 0.00054386734 and it's charge is negative. Hope this helps! ;)

5 0

2 years ago

The process of conversion of solid into gas and again gas into solid is known as

pantera1 [17]

Sublimation is when a solid becomes a gas. And gas to solid is deposition.

6 0

3 years ago

The lamp has a resistance of 10Ω

Jet001 [13]

D) Less than 20.

Explanation:

Equivalent resistance in a parallel combination is less than their individual value.

5 0

3 years ago

a stone is vertically thrown upward with the velocity of 72km/hr find the maximum height reached the height​

a stone is vertically thrown upward with the velocity of 72km/hr find the maximum height reached the height