Ask question

Ask question

All categories

3 years ago

13

The battery in the drone can store 97.5 kJ of energy. When the drone is hovering, the power output of the battery is 65.0 W Calc

ulate the time for which the drone can hover.

1 answer:

Volgvan3 years ago

7 0

Answer: 1500 seconds

Explanation:

E = 97.5 kJ = 97500 J

P = 65 W

t = ?

t = 97500/65

t = 1500 sec

You might be interested in

The energy a glass has as you are holding it still above a table is

Novosadov [1.4K]

Energy <span>due to position is potential energy</span>

5 0

3 years ago

Read 2 more answers

A(n) __________ refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or

kipiarov [429]

Answer:

A placebo refers to a substance or treatment that is often used in an experiment but does not have an actual medicinal or experimental benefit.

Explanation:

3 0

1 year ago

Read 2 more answers

Water flows at 0.850 m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an up

grin007 [14]

Answer:

The velocity is $v_2= 0.45 \ m/s$

Explanation:

From the question we are told that

The initial speed of the hot water is $v_1 = 0.85 \ m/s$

The pressure from the heater $P_1 = 450 \ KPa = 450 *10^{3} \ Pa$

The height of the hot water before flowing is $h_1 = 0 \ m$

The height of bathtub above the heater is $h_2 = 3.70 \ m$

The pressure in the pipe is $P_2 = 414 KPa = 414 *10^{3} \ Pa$

The density of water is $\rho = 1000 \ kg/m^3$

Apply Bernoulli equation

$P_1 + \rho gh_1 +\frac{1}{2} \rho v_1^2 = \rho g h_2 + \frac{1}{2}\rho v_2 ^2$

Substituting values

$(450 *10^{3}) + (1000 * 9.8 * 0) + (0.5 * 1000 * 0.85^2) = (1000 * *9.8*3.70) + (0.5*1000*v_2^2 )$

=> $v_2^2 = \frac{ (450 *10^{3}) + (1000 * 9.8 *0 ) + (0.5 * 1000 * 0.85^2) -[ (1000 * *9.8*3.70) ]}{0.5*1000}$

=> $v_2= \sqrt{ \frac{ (450 *10^{3}) + (1000 * 9.8 * 0) + (0.5 * 1000 * 0.85^2) -[ (1000 * *9.8*3.70) ]}{0.5*1000}}$

=> $v_2= 0.45 \ m/s$

4 0

2 years ago

NEED HELP NOW!!! I WILL BRAINLIEST.

Sergio039 [100]

Answer:

1. Carbon-12

2. Nitrogen-13

3. Carbon-13

7 0

2 years ago

How did thomson’s findings revise dalton’s atomic theory??

Burka [1]

Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles. ... The positive and negative charges cancel producing a neutral atom. images.tutorvista.com. Later discoveries by Rutherford and others lead to additional revisions to atomic theory.

8 0

2 years ago