An astrophysicist tries to understand the universe and its contents by applying the laws of physics.

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An astrophysicist tries to understand the universe and its contents by applying the laws of {{}}.

Calculating the height of various features (such as mountains) is often done using a laser...

The wall of a crater on Mars is 0.6 km tall. When the wall casts a shadow with length 557 m, what angle (to 1 d.p.) is the Sun at?

The wall of a crater on Mars is 6 km tall. When the wall casts a shadow with length 557 m, what angle (to 1 d.p.) is the Sun at?

A crater on Mars has a wall which casts a shadow of length 2.1 km. This occurs when the Sun is at an angle of 67°. What is the height (to 2 d.p.) of this wall in kilometres?

Starting with the planet closest to the Sun, put these planets in order.

Select the values written correctly in standard form.

Select the correct way of writing 8300 in standard form.

$$2.8 \times 10^{4}$$ as an ordinary number is {{}}.

$$2.913694 \times 10^{5}$$ as an ordinary number is {{}}.

$$2.91 \times 10^{-5}$$ as an ordinary number is {{}}.

Astrophysicist

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