2 years ago

Giving away 50 points

Physics

2 answers:

Phoenix [80]2 years ago

6 0

Answer:

Explanation:

thx

Salsk061 [2.6K]2 years ago

3 0

Thanks they won’t let me send this unless I type a lot

You might be interested in

Anybody from India ?

Lelu [443]

Answer:

No,why you say that

Explanation:

7 0

2 years ago

Read 2 more answers

What's the energy transfer for a catapult

just olya [345]

Kinetic energy is the energy for a catapult.

3 0

2 years ago

The OBD-II catalytic converter monitor uses _______ sensor(s) to monitor catalytic converter efficiency.

oksano4ka [1.4K]

C comment for an explanation

8 0

2 years ago

An artillery shell of mass 30 kg has a velocity of 250 m/s vertically upward. The shell explodes into two pieces; immediately af

olga_2 [115]

Answer:

9654.34 m

Explanation:

from conservation of momentum

$\begin{aligned}30 \times 250 &=-10 \times 120+20 \times V \\20 V &=30 \times 250+10 * 120 \\V &=\frac{30 \times 250+10 \times 120}{20}=435 \mathrm{~m} / \mathrm{s}\end{aligned}$

And from Conservation of Energy

$\frac{1}{2} m v^{2}=m g h\\h=\frac{v^{2}}{2 g}\\h=\frac{(435(m/s))^{2}}{2 \times 9.8(m/s^{2} )}\\h=9654.34 (m)$

7 0

1 year ago

6. A 73-kg woman stands on a scale in an elevator. The

olga nikolaevna [1]

Answer:

Explanation:

n = m(g +a)

n= normal force (N)

m=mass (kg)

g=acceleration of gravity

a= acceleration of elevator

rearrange:

a= n/m - g

a= (810 N/73 kg) - 9.8 m/s ^2

a= 1.3 m/s ^2 up

and the acceleration is upwards bc her weight is less than the scale reading

3 0

2 years ago