Answer: Sanjay can burn 100 more calories every 30 minutes if he chooses to lift weights instead of watching tv
Explanation: 133-33= 100 calories (says in article and i just answered it)
Answer:
The mass of the child + skateboard is 50 kg
Explanation:
In this problem, we can apply Newton's second law:
F = ma
where
F is the net force on a system
m is the mass of the system
a is the acceleration of the system
In this problem, our system is the child + the skateboard. The net force on them is
F = 75 N
and their acceleration is

So we can re-arrange the equation above to find their combined mass:

F=ma therefore 25kg*1.0m/s^2=25N force on the mass
Answer: A, C, E
Explanation:
Gamma rays, Microwaves, and Radio waves
Answer:
For the first one c is the answer
For the second one c is also the answer
For the third one is b
Explanation:
I took that