Answer:
30.93 m/s
Explanation:
Given that, the speed of stolen car is,
As policeman start chasing the stolen car after 60 seconds.
Now suppose the speed of policeman car is, 
The policeman catches the stolen car at a distance of,
Now the distance covered by the policeman in time t is 
And the distane cover by the thief in stolen car in time(t+60s) is 
.
And these distances are equal and they are equal to 60000 m.
Therefore,
Therfore,
Now use this value to solve for minimum speed of policeman's car.
Therefore minimum speed of policeman's car is 30.93 m/s.
Answer:
the strength of the magnetic field is 3 x 10⁻⁵ T
Explanation:
Given;
velocity of the cosmic ray, v = 5 x 10⁷ m/s
force experienced by the ray, f = 1.7 x 10⁻¹⁶ N
angle between the ray's velocity and the magnetic field, θ = 45⁰
The strength of the magnetic field is calculated as;
Therefore, the strength of the magnetic field is 3 x 10⁻⁵ T
Answer:
You're strong.
Explanation:
I've been thinking of this for quite a while, and I realized that your body has a certain limit to how much pain it can take. So, punching yourself extremely hard will cause pain, because that's your body's reaction to immense pressure being put on it. But, the fact that you punched yourself so hard that it hurts, shows that you are capable of applying so much pressure; therefore, you are strong.
I believe the answer is A.
Since the Earth is in the Milky Way and not outside it, we cannot see the exact shape of it. Physicists have been able to track and graph the movements of the planets accurately for thousands of years, but that does not mean we know the shape of the entire solar system.<span />
That is called the capacity.
