Ask question

Ask question

All categories

3 years ago

11

A thermostat is used for which of the following? maintaining the temperature in a room turning a heating system on turning a hea

ting system off all of the above

2 answers:

Molodets [167]3 years ago

4 0

All of the above, it's a very useful device :P

Vlada [557]3 years ago

3 0

Thermostat can do all the three.

So answer is D.

You might be interested in

A racing car is traveling on a circular race course of radius 569 m at a speed such that it makes 1.46 rev in 1 minute. the mass

HACTEHA [7]

1.46rev in 1min = 2pi*1.46revs/60s=0.152891 rad/s=ω
Fc=m*r*ω^2
Fc= 1550kg*(0.152891)^2 * 569m = 19951N

hope this helps! Thanks!

8 0

3 years ago

cestrela7 [59]

11.Perfectly elastic,as in only this collision K.E is conserved,however momentum is conserved in both elastic and inelastic collisions. 9)must also be conserved.because there is eleastic collision. 8)unchanged. 7)dcreases as velocity changes from 0.5 to 0 m/s. 4)momentum

3 0

3 years ago

Read 2 more answers

Vilka [71]

Answer:

Explanation:

500 W = 500 J/s

500 J/s(2 min(60 s/min) = 60000 J

8 0

3 years ago

Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible fricti

Bas_tet [7]

Answer:

v = 0.059 m/s

Explanation:

To find the final speed of Olaf and the ball you use the conservation momentum law. The momentum of Olaf and the ball before catches the ball is the same of the momentum of Olaf and the ball after. Then, you have:

$mv_{1i}+Mv_{2i}=(m+M)v$ (1)

m: mass of the ball = 0.400kg

M: mass of Olaf = 75.0 kg

v1i: initial velocity of the ball = 11.3m/s

v2i: initial velocity of Olaf = 0m/s

v: final velocity of Olaf and the ball

You solve the equation (1) for v and replace the values of all variables:

$v=\frac{mv_{1i}}{m+M}=\frac{(0.400kg)(11.3m/s)}{0.400kg+75.0kg}=0.059\frac{m}{s}$

Hence, after Olaf catches the ball, the velocity of Olaf and the ball is 0.059m/s

3 0

3 years ago

To have more resources in the future. We must ______ resources today.

GenaCL600 [577]

1. is the answer to this question

6 0

4 years ago

Read 2 more answers