Ask question

Ask question

All categories

gayaneshka [121]

3 years ago

6

Find by means of a vector (quantity) diagram,

1 answer:

almond37 [142]3 years ago

8 0

Answer:

which principle prevents a brach from abusing its power

Explanation:

You might be interested in

A teaspoon a sugar is added to a glass of tea which is then stirred until no more crystals can be seen. Another teaspoon is adde

otez555 [7]

Unsaturated I would say

8 0

3 years ago

Read 2 more answers

What do astronomers use to calculate the age of the universe

kykrilka [37]

The age of the oldest stars ,

Patterns of background radiation ,

How fast distant galaxies are moving away from us.

6 0

3 years ago

Read 2 more answers

The fundamental force that is weak, long ranged and always relates the attraction of two masses is _____.

shutvik [7]

By definition this is the b) gravitational force.

5 0

3 years ago

The concrete slab of a basement is 11 m long, 8 m wide, and 0.20 m thick. During the winter, temperatures are nominally 17°C and

mina [271]

Answer:

$\frac{dQ}{dt}= 4312 W$

Explanation:

As we know that base of the slab is given as

$A = 11 \times 8$

$A = 88 m^2$

now we know that rate of heat transfer is given as

$\frac{dQ}{dt} = \frac{kA}{x} (T_2 - T_1)$

here we know that

$k = 1.4 W/m k$

Also we have

$x =0.20$

$\frac{dQ}{dt} = \frac{1.4(88)}{0.20}(17 - 10)$

$\frac{dQ}{dt}= 4312 W$

7 0

3 years ago

A parachutist's fall to Earth is determined by two opposing forces. A gravitational force of 605 N acts on the parachutist. Afte

Doss [256]

Answer:15.8 m/s

Explanation:

Given

Gravitational Force $F_g=605 N$

Air resistance $F_d=689 N$

mass of Parachutist $=\frac{605}{9.8}=61.73 kg$

Velocity after $3 s$

$v=u+at$

$v=0+9.8\times 3$

$v=29.4 m/s$

Now Parachutist opens the parachute

Net for on Parachutist

$605-689=-84$

$84 N$ drag force

therefore deceleration $\frac{84}{61.73}=1.36 m/s^2$

velocity after 10 s is

$v_1=v+at$

$v_1=29.4-1.36\times 10$

$v_1=15.8 m/s$

7 0

4 years ago